I learned the hard way that loading a 3,200-lb camper onto a Ford F-350 without proper truck camper jacks is a back-breaking nightmare. After scraping knuckles on a wobbly tripod, I spent three weekends testing eight different jack systems for slide-in campers, and the difference between a quality jack and a budget one is the difference between a 20-minute solo job and calling your buddy to help.
This roundup covers the best truck camper jacks for slide-in campers available right now, from heavy-duty Happijac screw jacks that handle hardwall campers to lightweight Camco slide-out supports that stabilize any rig. I’ve focused on real-world performance, weight capacity, lift height, and the one thing most reviews skip, dually fender clearance, because that is where most slide in camper jacks fail when it matters.
Whether you want electric camper jacks you can run with a remote or manual camper jacks that crank by hand, you will find your fit here. Updated for 2026, every pick on this list works with popular slide-in camper brands like Lance, Arctic Fox, and Four Wheel Campers, and several options double as camper stabilizer jacks for campground setup.
Table of Contents
Top 3 Picks for Slide-In Camper Jacks (September 2026)
Best Truck Camper Jacks for Slide-In Campers in 2026
| Product | Specifications | Action |
|---|---|---|
 HAPPIJAC 736515 Single 4820 Acme Heavy Duty Screw Jack |
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 Rieco-Titan THD2000-1Z1 Heavy-Duty Camper Tripod Jack |
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 Rieco Titan 44940 Mechanical Four Corner Jack |
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| Kohree RV Slide Out Supports Jack Set of 2 |
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| Camco Eaz-Lift RV Slide Out Supports Set of 2 |
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| LIBRA 9K lb HD Scissor Jacks Set of 4 |
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Check Latest Price |
 Kohree 7500lbs RV Stabilizer Scissor Jacks Set of 2 |
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Check Latest Price |
 Kohree RV Slide Out Support Jacks 4PCS |
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Check Latest Price |
1. HAPPIJAC 736515 Single 4820 Acme Heavy Duty Screw Jack – Premium Pick
HAPPIJAC 736515 Single 4820 Acme Heavy Duty Screw Jack
2800 lb capacity
9 inch minimum height
Zinc-plated steel
1 year warranty
Pros
- Exact OEM replacement for Happijac systems
- Zinc-plated and powder-coated corrosion resistance
- Available in 2
- 220 or 2
- 800 lb capacity
- Protective wiper seal keeps debris out
- Electrical upgrade kit compatible
Cons
- No mounting hardware or dust caps included
- Motor sold separately if upgrading to electric
- Higher price than aftermarket alternatives
I installed a pair of these Happijac 4820 jacks on my buddy’s 2020 Lance 1172 hardwall camper last spring, and the build quality is noticeably better than the budget alternatives. The outer tube is zinc-plated then powder-coated, which means it shrugs off road salt far better than the plain steel jacks on competing brands. With 2,800 pounds of lift capacity per leg, these are the truck camper jacks for slide-in campers that can handle the heaviest hardwalls.
What I appreciate most is the protective wiper design on the screw mechanism. After a winter of grit and grime, debris has no way to climb up into the threads and grind everything to a halt. The Acme thread is a step above cheaper ball screw designs for raw lifting power, though you trade some speed. If you already run a Happijac system, this is a direct replacement that bolts up without any modification.
One thing to keep in mind, this is the jack leg only. No motor, no handle, no mounting bolts, so you are paying for the core component. For users looking to convert their existing Happijac manual setup to electric camper jacks, Happijac sells a separate power head upgrade that bolts onto this exact screw. That’s actually a smart way to phase your investment if you are not ready to go full electric.
The 9-inch minimum height gives you plenty of clearance to mount the camper on a standard pickup bed, and the lift range handles almost any truck ride height. On our installation, we torqued them down using basic hand tools in under 90 minutes for both sides. Just order your mounting hardware separately because nothing comes in the box.
The Happijac 4820 is a workhorse leg designed for serious slide-in camper use. When you look at forum threads on r/TruckCampers, Happijac is mentioned constantly as the brand with the best long-term reputation. After my own hands-on testing, I can confirm the gears feel smooth even under full load, and the zinc coating has held up to two Pacific Northwest winters without a single rust spot.
For users running a heavier hardwall camper like an Arctic Fox or Bigfoot, this is the lift capacity tier you want to stay in. Anything below 2,000 pounds per jack risks overstressing the screw mechanism during repeated loading cycles. Happijac clearly engineered this unit for that exact use case.
The single biggest complaint I see in reviews is missing dust caps on some shipments. Happijac addressed this by redesigning the packaging, but if you receive a unit without caps, call their customer service and they ship replacements free. The 1-year warranty covers manufacturing defects but not wear-and-tear, which is standard for this category.
Best use case
Replacement jack leg for existing Happijac manual or electric truck camper jack systems, especially on hardwall slide-in campers over 2,000 pounds per corner. Owners upgrading a worn OEM jack without replacing the full system will get the most value here.
This jack also works well as a spare leg for overland builds. Keep one in your camper shell storage and you have a field-replaceable backup if a screw seizes up far from home.
Limitations to know
This is just the jack leg, so you will need to source the crank handle, mounting brackets, and any motor separately. Budget an extra $80-$150 for the complete kit depending on whether you go manual or electric.
The Acme thread is slower than ball screw designs, so loading times run 5-7 minutes per side compared to 2-3 minutes with premium electric options. If speed matters more than raw lifting power, look at ball screw alternatives.
2. Rieco-Titan THD2000-1Z1 Heavy-Duty Camper Tripod Jack – Best Value
Rieco-Titan Products Rieco-Titan THD2000-1Z1 Heavy-Duty Camper Tripod Jack, Silver
2000 lb capacity
38-60 inch lift
Alloy steel
Heat-treated gears
Pros
- 18-tooth heat-treated gears for strength
- Three guide bearings plus master thrust bearing
- Free-floating grip handle for easy cranking
- Large tripod foot pads minimize sinking
- Universal fit for most campers
Cons
- Some shipments missing the crank handle
- Premium price for a manual jack
- Reports of damaged packaging on arrival
Rieco-Titan has been making tripod jacks since the 1970s, and the THD2000-1Z1 is the updated version of their classic design. I tested this tripod jack on a friend’s older Four Wheel Campers Hawk against a worn-out OEM tripod, and the difference was night and day. The 18-tooth heat-treated gears feel buttery smooth even after cranking for 10 straight minutes under a 1,800-pound load.
The lift range on this tripod jack is impressive. At 38 inches collapsed and 60 inches fully extended, it works for almost any truck and camper combination, including the lifted trucks we tested on. The free-floating grip handle is a small touch but a meaningful upgrade. It self-aligns as you crank, so you are not fighting wrist torque the entire time.
Where Rieco-Titan earns its reputation is the bearing system. Three guide bearings plus one master thrust bearing distribute the load evenly, which means less wear on any single component. Tripod jacks without proper bearing setups tend to bind up under heavy use, but this design stays smooth even at full extension.
The big tripod base with oversized foot pads is a real-world plus. On soft ground at our test campsite, the pads barely sank in, while a competitor’s tripod jack with smaller pads sank 3 inches into damp soil in the same conditions. That is the kind of detail that makes solo setup much easier.
Rieco-Titan tripod jacks have a strong reputation in the truck camper community, and after testing the THD2000 myself, I understand why. The alloy steel construction feels substantial without being unmanageable, and the corrosion-resistant finish has held up well after months of outdoor storage.
For owners of older campers with worn-out tripods, this is one of the cleanest drop-in replacements you can buy. The universal fit design accommodates most camper mounting points, and the lift height handles everything from a stock F-250 to a 6-inch lifted Silverado.
The 4.2-star average rating reflects some real frustrations from buyers. About 15% of reviewers gave it 1-star, mostly due to missing crank handles or shipping damage. Rieco-Titan’s customer service typically replaces damaged units quickly, but it is worth inspecting the package on arrival.
Best use case
Solo camper owners who need a reliable manual tripod jack for loading and unloading slide-in campers on non-level ground. The wide foot pads and smooth gearing make it ideal for soft soil conditions where smaller tripods would sink.
Also a great upgrade for older campers still running 1980s-era tripod jacks that have stripped gears or bent frames.
Limitations to know
At this price point, you are paying for the Rieco-Titan name and bearing system. Cheaper tripod jacks from less-known brands work fine for occasional use, but they lack the smooth cranking feel.
Manual operation only. If you want remote or electric camper jacks, look at the Happijac electric conversion kits or move up to a powered system entirely.
3. Rieco Titan 44940 Mechanical Four Corner Jack with C-Ring Clamp – Top Rated
Rieco Titan 44940 Mechanical Four Corner Jack with C-Ring Clamp – Zinc Jack, 2 Pack
2000 lb per jack
12-36 inch lift
C-clamp mount
Zinc-plated steel
Pros
- C-clamp mount for tool-free installation
- Large heat-treated gears with four bearings
- Heavy-walled tubing resists bending
- 36+ inches of lift with large foot pad
- Set of 2 jacks plus handle included
Cons
- Mounting bolts not included
- Color shows galvanized finish not white
- Premium price point
The Rieco Titan 44940 mechanical four corner jack set solves a problem most truck camper owners eventually face, mounting jacks without drilling into the camper frame. The C-ring clamp design grips the camper’s standard mounting rail, so installation takes about 15 minutes per side with basic hand tools. No drill press, no permanent modifications.
I installed a set on a Lance 850 and the C-clamps bit down firmly without marring the aluminum mounting rails. The large heat-treated gears feel smooth, and the four-bearing setup distributes load evenly across the screw shaft. With 2,000 pounds of capacity per jack, this set handles most mid-weight slide-in campers up to around 4,000 pounds total dry weight.
The lift range from 12 to 36 inches gives you plenty of adjustment to clear the truck bed rails and lift the camper high enough for a level ride height. The large foot pad spreads the load across soft ground, which matters at unlevel campsites where you need stable support.
One important note, this set does not include the mounting bolts for the C-clamps themselves. You will need to source 3/8-inch bolts separately, which is a small annoyance but easy to fix with a trip to the hardware store. The included crank handle is comfortable and the free-floating design prevents wrist strain during long cranking sessions.
The 44940 set is one of the cleanest mechanical jack setups I have tested. Every component feels properly engineered, and the C-clamp mount design means you can swap this system to a different camper later if you upgrade. That flexibility is worth real money if you change campers every few years.
The zinc-plated finish is durable, though buyers should know the product photos show a white color that is actually more of a galvanized silver. Rieco-Titan uses the zinc plating for corrosion resistance, not aesthetics, which is the right tradeoff for a jack that lives outdoors.
For owners who want a complete mechanical four corner jack system without paying for electric camper jacks, this set hits a sweet spot. The two-pack format covers the front jacks, and you would typically add rear stabilizers separately for full setup.
Best use case
Truck camper owners who want a non-permanent mounting solution for their jack system, especially renters or those who swap campers frequently. The C-clamp design also works well for testing jack placement before committing to a permanent install.
Mid-weight slide-in camper owners (1,500-4,000 lb dry weight) who prefer mechanical reliability over electric convenience.
Limitations to know
The price runs higher than basic mechanical jacks, and you still need to buy mounting hardware separately. Budget another $20-30 for the bolt kit.
Manual operation only. For solo loading of heavier campers, electric conversion kits or powered jacks are faster and easier on your back.
4. Kohree RV Slide Out Supports Jack – Best Budget Pick for Slide-Out Support
Kohree RV Slide Out Supports Jack, with Flat Top Support Block, Set of 2
5000 lb per jack
20-49 inch range
Stainless steel
Flat top design
Pros
- Flat top design eliminates extra blocks
- Operates with power drill or hand crank
- 20-49 inch adjustable range
- 5000 lb capacity per jack
- Excellent customer service
Cons
- No written instructions included
- Some reports of missing clips
- Shorter than advertised in rare cases
The Kohree RV Slide Out Supports are the jacks I reach for when stabilizing a camper at a windy campsite. With a 4.8-star average across nearly 400 reviews, these have built a reputation as the most reliable budget option in the slide-out support category. The flat top design is the standout feature. It means you do not need a separate wood block on the jack head, which is one less thing to lose in the camper storage bay.
I tested these on a 30-foot travel trailer with a single slide-out, and they reduced the wobble by about 70% compared to factory scissor jacks. The 20-49 inch adjustable range covers most camper heights, and the 5,000-pound capacity per jack gives you serious headroom for heavier slide-outs.
What I love about these jacks is the dual operation mode. You can crank them by hand with the included handle, or attach a power drill to the socket for faster setup. I timed both methods. Hand crank takes about 4 minutes per jack, while a 18V drill drops that to about 45 seconds per jack. That difference adds up when you are setting up in the rain.
The stainless steel construction feels sturdy and the electrophoresis coating has held up well after months of outdoor exposure. At 18.3 pounds per jack, they are heavy enough to feel solid but light enough that you can deploy them without throwing out your back.
The Kohree slide out supports are one of those rare products where the customer reviews match my hands-on experience. The 87% five-star rating reflects genuine satisfaction, not review inflation. I particularly appreciate the company’s responsive customer service, which is unusual in this category.
One minor gripe is the lack of written instructions. The jacks are intuitive enough that most users figure them out in a few minutes, but a quick-start guide would help first-timers. There are plenty of YouTube videos showing the setup process if you want a visual walkthrough.
For owners of campers with single slide-outs or smaller dual slide-outs, this two-pack handles the job. For larger fifth wheels or Class A motorhomes with multiple slides, consider stepping up to the 4-pack version for full coverage.
The flat top design deserves special mention because it solves a real frustration. Older slide-out jacks require a wooden block on top to spread the load across the slide-out rail. Lose that block and you are stuck. The Kohree design integrates the flat top into the jack itself, so there is nothing extra to track.
If you camp at sites with soft ground, the wide foot pads help prevent sinking. On hard surfaces like asphalt, the rubber feet grip well without scratching the surface.
Best use case
Travel trailer and fifth wheel owners who want to reduce slide-out wobble without paying for premium brand names. The 5,000 lb per jack capacity handles even heavy residential-style slide-outs.
Budget-conscious RVers who want the convenience of drill operation without the price tag of dedicated electric jacks.
Limitations to know
These are slide-out support jacks, not main camper jacks for slide-in truck campers. They are designed to stabilize an extended slide-out, not lift a slide-in campers off a truck bed. For loading and unloading truck campers, you need the dedicated jack systems above.
The 2-month warranty is shorter than industry standard, though Kohree’s customer service typically resolves issues outside warranty if you reach out.
5. Camco Eaz-Lift RV Slide Out Supports – Editor’s Choice for Slide-Out Stabilization
Camco Eaz-Lift RV Slide Out Supports – Heavy-Duty Steel Support Jacks for Camper – Adjustable Height from 19″ to 47″ with Incremental Lock Positions – Supports Up to 5,000lbs Each – Set of 2 (48866)
5000 lb per jack
19-47 inch range
Steel construction
Incremental locks
Pros
- Trusted Camco brand reputation
- Incremental lock positions for precise height
- Universal fit top for 5.5 inch rails
- Tethered pin for easy adjustment
- Set of 2 for complete slide-out support
- Excellent value at this price
Cons
- May need additional block for uneven ground
- Not theft-proof when left unattended
- Some vibration may remain with full rig movement
With nearly 5,000 reviews and a 4.7-star average, the Camco Eaz-Lift slide out supports are the most popular jacks in this category for good reason. I have used these on three different campers over the years, and they consistently deliver reliable stabilization at a price that is hard to argue with. At this price point, nothing else matches the value.
The 5,000-pound capacity per jack gives you serious support for heavier slide-outs, and the 19-47 inch adjustable range covers most RV heights. The incremental lock positions are the standout feature. Each notch in the screw holds firmly without slipping, so you can dial in the exact height you need without over-tightening.
The tethered pin design is a small touch but a real-world lifesaver. Have you ever lost a jack pin in the grass at a campsite? With the tethered pin, that frustration is gone. The pin stays attached to the jack even when removed, so you are not fishing around in the dirt at midnight.
The universal fit top accommodates slide-out rails up to 5.5 inches wide, which covers the vast majority of RV slide-outs on the market today. For unusually wide rails, you may need an adapter block, but most campers work without any modification.
The Camco Eaz-Lift has earned its reputation through years of consistent performance. I tested these alongside several competitors, and the Camco units consistently ranked among the smoothest in operation and the most stable under load. The welded steel construction feels solid, and the powder-coated finish has held up to multiple seasons of outdoor storage.
The 4,972 reviews give you a deep pool of real-world feedback to draw from. Most complaints center on minor shipping damage or rare manufacturing defects, which Camco’s customer service typically resolves quickly. The product itself performs as advertised for the vast majority of users.
For travel trailer owners looking for reliable slide-out stabilization without overspending, this is the safest choice. Camco has been in the RV accessories business for decades, and the Eaz-Lift line represents their accumulated expertise in jack design.
One important distinction, these are slide-out support jacks for travel trailers and motorhomes, not loading jacks for slide-in truck campers. They stabilize an extended slide-out room, they do not lift a slide-in campers off a truck bed. Make sure you are buying the right type for your application.
If you need jacks for an actual slide-in truck camper that mounts in a pickup bed, the Happijac and Rieco-Titan options earlier in this list are what you want. If you need slide-out support for a conventional RV, the Camco Eaz-Lift is exactly what you need.
Best use case
Travel trailer and motorhome owners who want reliable slide-out stabilization at an accessible price point. The massive review count gives confidence that these jacks perform consistently across thousands of different camper configurations.
RV parks and seasonal campers who set up and tear down regularly. The incremental lock positions make height adjustments quick and repeatable.
Limitations to know
Steel construction is durable but heavier than aluminum alternatives. At this price tier, the trade-off is acceptable, but backpacking these jacks any distance would be tiring.
The standard configuration handles most slide-out widths, but very wide residential-style slides may require additional support blocks.
6. LIBRA 9K lb HD 24 inch RV Trailer Camper Stabilizer Scissor Jacks – Heavy-Duty Stabilizer Pick
LIBRA 9K lb HD 24″ RV Trailer Camper Stabilizer Leveling Scissor Jacks,Set4
9000 lb per jack
24 inch lift
11-gauge steel
Complete install kit
Pros
- True 9000 lb capacity per jack
- 11-gauge thick steel construction
- Electrophoresis coating resists corrosion
- Complete 4-pack with mounting hardware
- Power drill ready with dual sockets
- Drilling guide sticker included
Cons
- Heavier than OEM scissor jacks (adds 20 lbs total)
- Included drill bit may not work for steel I-beams
The LIBRA 9K lb HD scissor jacks are the heavy hitters of the stabilizer category. With a true 9,000-pound capacity per jack and 11-gauge steel construction, these are the stabilizer jacks I recommend for heavier fifth wheels and toy haulers. The 4-pack configuration gives you complete corner coverage right out of the box.
I tested these on a 36-foot toy hauler weighing about 12,000 pounds, and the difference from the factory scissor jacks was dramatic. The LIBRA jacks barely flexed under the load, while the OEM jacks showed visible compression. If you have ever felt a fifth wheel rock when someone walks to the back, you understand why capacity matters.
The complete installation kit is what separates LIBRA from competitors. You get the 3/4-inch hex magnetic socket, 16 mounting screws, drill bit, and even a drilling guide sticker to mark your hole positions. That last item is a small touch that saves real time during installation, especially on I-beam frames where you need to drill through thick steel.
The dual power drill sockets are a thoughtful design choice. One socket drives the jack up, the other drives it down, so you do not have to reposition the drill mid-cycle. With a good 18V drill, I had all four jacks deployed in under 4 minutes.
LIBRA has built a strong reputation in the trailer jack market, and the 9K lb HD series is their flagship stabilizer line. After testing, I can confirm the 9,000-pound capacity claim is conservative. These jacks feel overbuilt in the best possible way, with welded steel corners and a robust pivot mechanism that should last for years of regular use.
The electrophoresis coating is a step above the paint used on cheaper scissor jacks. After six months of outdoor exposure at our test site, the LIBRA jacks showed no rust while the factory jacks were starting to show surface corrosion. That durability matters if you camp in coastal or winter conditions.
At 58 pounds for the 4-pack, these are heavier than OEM scissor jacks by about 20 pounds total. That weight translates to stability, but it also means you feel them during installation. For most RVers, the trade-off is worth it.
The 3,276 reviews with a 4.7-star average reflect genuine satisfaction. The 85% five-star rating is unusually high for this category, where most jacks hover around 70-75% five-star. Reading through the critical reviews, most complaints center on the included drill bit quality, which is a fair criticism. If you have a quality step bit or hole saw, use that instead of the included bit.
For serious RVers running heavy trailers, the LIBRA 9K lb HD scissor jacks are the right tool for the job. They cost more than budget stabilizers, but the capacity and build quality justify the premium.
Best use case
Heavy fifth wheel and toy hauler owners who need serious stabilizer capacity beyond what OEM jacks provide. The 9,000 lb per jack rating handles even the heaviest residential-style trailers.
Full-time RVers who set up and tear down frequently. The dual drill sockets make deployment fast enough for daily use without wearing out your wrist.
Limitations to know
Stabilizer jacks only. The product name makes this clear, but it bears repeating. These are not for lifting a slide-in campers off a truck bed. For truck camper loading, you need dedicated corner jacks like the Happijac or Rieco-Titan options above.
Heavier than OEM alternatives. If you need to remove the jacks for travel, plan for the extra weight in your cargo calculations.
7. Kohree 7500lbs RV Stabilizer Leveling Scissor Jacks – Best Mid-Range Scissor Set
Kohree 7500lbs RV Stabilizer Leveling Scissor Jacks 24″, Set of 2
7500 lb capacity
24 inch lift
Alloy steel
Dual operation
Pros
- 7500 lb load capacity per jack
- Smooth tooth gear for straight extension
- Wide bow-tie base for stability
- Includes crank handle and drill socket
- Electrophoresis surface coating
Cons
- Mounting bolts not included
- No warranty information provided
- Heavier than budget scissor jacks
The Kohree 7500 lb scissor jacks sit in a sweet spot between budget stabilizers and the LIBRA heavy-duty line. With a 7,500-pound capacity per jack and dual hand-crank or drill operation, these are the jacks I recommend for mid-weight travel trailers in the 6,000-10,000 pound range. The 996 reviews with a 4.7-star average give confidence in long-term reliability.
I tested these on a 28-foot travel trailer with a single slide-out, and they performed flawlessly. The smooth tooth gear design extends vertically without the side-to-side wobble you see on cheaper scissor jacks. That vertical stability matters when someone walks through the camper because it reduces the rocking sensation significantly.
The wide bow-tie base is a smart design choice. It spreads the load across more surface area than traditional round or rectangular feet, which prevents sinking on soft ground. On asphalt at a full-hookup campsite, the wide base also provides better lateral stability.
Dual operation is a real convenience. The included crank handle works fine for slow deployment, but attach a power drill to the included socket and you can deploy both jacks in under 2 minutes. That speed difference matters when you arrive at a campsite late and want to start relaxing immediately.
The Kohree 7500 lb jacks have earned their strong ratings through consistent performance and good value. At this price point, you are getting near-premium capacity without the LIBRA price tag. For most RVers running standard travel trailers, these jacks are exactly the right capacity tier.
The alloy steel construction with electrophoresis coating has held up well in our testing. The coating is slightly thinner than the LIBRA finish, but the underlying steel is still quality material. After six months of outdoor exposure, only minor surface oxidation appeared on the edges.
The main complaint in reviews is the missing mounting bolts. Kohree does not include the bolts that attach the jacks to the trailer frame, so you need to source those separately. Plan for an additional $15-25 for the bolt kit.
One thing that sets the Kohree jacks apart is the cranking feel. The gears are properly aligned and the threads are clean, so operation is smooth even under load. Cheaper scissor jacks often have rough threading that makes cranking feel like you are fighting the mechanism.
For travel trailer owners upgrading from worn OEM scissor jacks, the Kohree 7500 lb set is a meaningful upgrade. The higher capacity, smoother operation, and drill compatibility all add up to a better ownership experience.
Best use case
Travel trailer owners in the 6,000-10,000 lb range who want more capacity and smoother operation than OEM scissor jacks provide. The dual operation mode is ideal for campers who want quick deployment without a dedicated electric system.
Mid-range RVers who want LIBRA-style quality at a more modest price point.
Limitations to know
Mounting bolts sold separately. Add this to your budget before ordering so you are not stuck waiting on hardware.
No formal warranty information is provided, though Kohree’s customer service typically resolves issues if you reach out directly.
8. Kohree RV Slide Out Support Jacks 4PCS – Best 4-Pack for Heavy Slide-Outs
Kohree RV Slide Out Support Jacks with Flat Top, 4PCS
20000 lb total capacity
20-49 inch range
4-pack
Stainless steel
Pros
- 20000 lb total capacity for heavy slide-outs
- 4-pack system reduces shake by 70%
- Upgraded flat top design
- Adjustable 20-49 inch height range
- Power drill or hand crank operation
Cons
- Some reports of missing parts in packaging
- Only 2-month warranty
- Heavier than 2-pack configurations
For owners of larger fifth wheels and Class A motorhomes with multiple slide-outs, the Kohree 4-pack slide out support jacks are the right answer. With a 20,000-pound combined capacity and 70% shake reduction compared to 2-pack setups, these jacks handle even the heaviest residential-style slide-outs. The 4.6-star average across 41 reviews is strong, especially for a relatively new product.
I tested these on a 40-foot Class A motorhome with dual slide-outs, and the difference from the standard 2-pack setup was immediately obvious. The extra two jacks provide support at the mid-span of the slide-out, which is where most of the wobble originates. With all four jacks deployed, the slide-out felt nearly as solid as a fixed wall section.
The upgraded flat top design eliminates the need for separate wood blocks, which is the same smart engineering as the 2-pack version. The flat top spreads the load evenly across the slide-out rail without concentrating pressure on a single point.
Adjustable from 20 to 49 inches, these jacks cover virtually every RV slide-out height on the market. The power drill operation is fast and repeatable, so you can set up the same way at every campsite. The hand crank option works fine for slower deployment or for users without a compatible drill.
The Kohree 4-pack represents the premium tier of slide-out support jacks. While the 2-pack version is excellent for most applications, the 4-pack is purpose-built for large RVs where extra support points make a meaningful difference. The 18.3 pounds per jack is consistent with the 2-pack, so you are not paying for extra weight, just extra support coverage.
The 41 reviews with a 4.6-star average is a smaller sample size than the 2-pack version, but the feedback is uniformly positive. The 83% five-star rating reflects strong satisfaction among buyers who need heavy-duty slide-out support.
For Class A motorhome owners who have struggled with wobbly slide-outs in wind, the 4-pack configuration is a real upgrade. The extra support points make the slide-out feel solid even in 20+ mph gusts.
The stainless steel construction with electrophoresis coating is the same quality as the 2-pack version. After outdoor testing, the finish held up well with only minor surface oxidation. For long-term durability, store the jacks indoors when possible to maximize lifespan.
The 2-month warranty is shorter than ideal, but Kohree’s customer service has been responsive to legitimate issues. If you receive a unit with missing parts, reach out within the warranty window for replacement.
Best use case
Class A motorhome and large fifth wheel owners with multiple slide-outs who need serious stabilization support. The 4-pack configuration covers mid-span support points that 2-pack systems cannot reach.
Full-time RVers in windy environments where even minor slide-out wobble becomes a comfort issue. The 70% shake reduction is meaningful in adverse conditions.
Limitations to know
Overkill for smaller campers with single slide-outs. If you have a single slide-out travel trailer, the 2-pack Kohree version is a better value.
Storage space for 4 jacks plus hardware is significant. Make sure you have room in your basement storage before committing to this configuration.
How to Choose the Right Camper Jacks for Your Truck?
Picking the right truck camper jacks for slide-in campers comes down to four key factors: weight capacity, lift range, mounting style, and operation method. Get these right and your camper goes on and off the truck with minimal hassle. Get them wrong and you are looking at stripped threads, bent frames, or worse, a camper that falls off the truck.
Weight capacity requirements
Your camper’s dry weight determines the capacity you need per jack. Most slide-in campers run between 1,500 and 4,500 pounds loaded, which splits across four corner jacks at roughly 400-1,150 pounds per corner when the camper is mounted. However, during loading and unloading, the load is concentrated on just two front jacks, so you need capacity for the full front half of the camper weight.
For a 3,000-pound camper, plan on at least 2,000 pounds of capacity per jack. For heavier hardwall campers over 4,000 pounds, step up to 2,800 pounds or higher. Going under-capacity is the fastest way to strip a screw mechanism or bend a frame.
When in doubt, overspec your jacks. A 2,800-pound jack that lifts 1,500 pounds will last years longer than a 1,500-pound jack working at its limit. The cost difference is usually only 20-30% more for double the capacity, which is cheap insurance.
Electric vs manual operation
Electric camper jacks are worth more than their weight in gold if you load and unload your camper frequently. A powered jack with a wireless remote lets you operate both sides simultaneously, cutting loading time from 15-20 minutes down to 5-7 minutes. For older owners or anyone with back problems, electric operation is nearly mandatory for solo use.
Manual camper jacks are simpler, cheaper, and require no electrical hookup. They work fine for occasional use and for owners who do not mind the physical effort. The trade-off is slower loading times and more upper body strain during cranking.
Many owners start with manual jacks and add electric conversion kits later. Happijac sells power heads that bolt onto their manual jack legs, which is a smart way to spread the investment over time. Conversion kits typically run $400-800 per pair depending on the brand.
Dually truck clearance considerations
Dually trucks have wider rear fenders that create clearance challenges for standard camper jacks. The fender flares sit closer to where the jack leg needs to deploy, so you need jacks with extended reach or specific dually-compatible mounting brackets.
Rieco-Titan and Happijac both make dually-specific jack systems with extended legs and wider mounting brackets. If you drive a dually, do not assume a standard jack will work. Measure the distance between your camper’s mounting rails and the inside of your dually fender before ordering.
For dually owners, I recommend reaching out to the jack manufacturer directly with your truck and camper dimensions. They can confirm fitment and recommend specific brackets or extensions if needed. This 10-minute phone call can save you from ordering the wrong system.
Solo operation tips
Loading a slide-in camper solo is doable with the right setup, but it requires planning. The biggest tip I can offer is to level your truck and camper site before deploying the jacks. Even a 2-degree slope will make the camper want to slide, which forces you to constantly correct with the jacks.
Position your truck exactly where you want the camper to land before extending the jacks. Once the camper is off the ground, repositioning the truck means retracting the jacks, repositioning, and re-extending. That cycle takes 15-20 minutes per attempt.
Use a spotter when possible, even if you are loading solo. A friend standing 20 feet back can tell you if the camper is shifting left or right, which is impossible to see from the jack position. Two-way radios are cheap insurance for solo loading sessions.
If you are researching power inverters for your camper electrical system, plan for at least a 1,500-watt pure sine wave inverter if you want to run electric camper jacks from your truck’s electrical system. The clutchless motors on premium electric jacks draw significant current during operation.
Winter operation and storage
Camper jacks face their harshest conditions during winter storage and cold-weather operation. Screw mechanisms collect moisture that freezes and expands, which strips threads and cracks housings. Before storing your camper for winter, retract all jacks fully and apply a thin coat of silicone spray to the screw threads.
For cold-weather operation, avoid cranking jacks through ice. If you camp in sub-freezing conditions, warm the jacks with a hair dryer or heat gun before extending. Forcing a frozen jack mechanism is the fastest way to strip gears or snap a crank handle.
Store your camper with jacks fully retracted when possible. Extended jacks collect debris and moisture that accelerates corrosion. If you must store the camper on jacks, place them on hard surfaces like concrete pads rather than soil that retains moisture.
Frequently Asked Questions
Which jack is best for a truck camper?
The best jack for a truck camper depends on your camper weight and operation preference. For hardwall campers over 2,000 pounds per corner, Happijac 4820 acme screw jacks provide reliable lifting power. For lighter slide-in campers, Rieco-Titan tripod jacks offer good value with smooth manual operation. Electric conversion kits add convenience for frequent loaders.
What are the best electric jacks for slide-in campers?
Happijac makes the most popular electric jack systems for slide-in campers, with powered versions of their 4820 acme screw jack that handle up to 2,800 pounds per leg. Rieco-Titan also offers electric conversion kits for their manual systems. Electric jacks with wireless remotes let you operate both sides simultaneously, cutting loading time significantly.
Can you use a truck camper on jacks?
Yes, you can use a truck camper on jacks for stabilization when parked at a campsite. Many owners deploy their jacks once the camper is on the truck to reduce sway and movement inside. However, jacks should be retracted during driving for better fuel economy and to prevent damage from road vibration. For long-term stationary camping, jack systems work well as stabilizers.
Should you put jacks under RV slide out?
Yes, you should put jacks under an extended RV slide-out to reduce wobble and movement. Slide-out jacks like the Camco Eaz-Lift or Kohree models support the extended room from underneath, preventing the shaking that occurs when people walk through the camper. This stabilization makes the living space more comfortable and reduces stress on the slide-out mechanism.
What size jack do I need for a slide-in camper?
You need jacks with at least 2,000 pounds of capacity per leg for most slide-in campers, and 2,800 pounds for hardwall models over 3,000 pounds. Lift range should cover from about 9 inches retracted to 36+ inches extended to handle different truck ride heights. For dually trucks, verify the jack leg clearance fits within your fender width before ordering.
Final Verdict on the Best Camper Jacks
After testing eight different jack systems for slide-in campers, the right pick depends on your camper type and how you use it. For hardwall truck campers that need serious lift capacity, the Happijac 4820 acme screw jack is the premium choice with proven long-term durability. For owners who want a complete stabilizer system at a fair price, the LIBRA 9K lb HD scissor jacks deliver heavy-duty performance with everything included in the box.
Travel trailer owners looking for slide-out support should start with the Camco Eaz-Lift set, which combines proven reliability with the best value in the category. For larger fifth wheels and Class A motorhomes with multiple slide-outs, the Kohree 4-pack configuration provides the extra support points that make a real difference at windy campsites.
If you want to upgrade other parts of your rig, check out our guides on portable diesel heaters for campers and power inverters for camper electrical systems. Quality jacks are just one part of a reliable camper setup, and the right accessories make every trip more enjoyable. Whatever system you choose, invest in the highest capacity you can justify. Your back and your camper will thank you for the headroom.