6''Height Trailer Jack Block, Heavy Duty 40,000lbs RV Camper Stabilizer Blocks for Travel Trailers Tongue Jack 5th Wheels Scissor stabilizers, 1 Pack
Condition: New
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Wednesday, Apr 29
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Size: 1 Pack
Color: Grey
Features
- Durable and Weather Resistance: Made of high-quality, high-performance polymer, offering UV resistance, oil resistance, water resistance, heat resistance, stain resistance, and weather resistance. It effectively conceals minor stains that may occur during outdoor use. Each pad can support up to 40,000 pounds.
- Generally Applicable: Universally compatible with tongue jacks, wheel jacks, scissor stabilizers, and 5th wheel hydraulic jacks. It can easily adapt to uneven terrain, effectively reducing shaking and movement of RVs or trailers.
- Adjustable Height: The stackable design allows you to easily adjust the height from 6 inches to your desired level, and the locking stacking mechanism prevents dangerous shifting. It maintains reliable load-bearing capacity even when stacked, eliminating wobbling.
- Easy to Carry and Store: This leveling block features built-in side holes and comes with a rope for easy carrying, lifting, and placement. Drainage holes prevent water accumulation, extending its lifespan.
- Strict Quality Inspection: Each pad undergoes rigorous pre-shipment quality inspection to ensure consistency and reliability, allowing you to enjoy your outdoor adventures with peace of mind.
Vehicle Service Type: RV, Trailer, Truck
Material: Polymer
Load Capacity: 4E+4 Pounds
Brand: KIKIRV
Color: Grey
Brand Name: KIKIRV
Manufacturer: KIKIRV
Item Type Name: Trailer Jack Block
Included Components: NO
Manufacturer Warranty Description: 1-year warranty
Compatible with Vehicle Type: RV, Trailer, Truck
Load Capacity: 4E+4 Pounds
Item Weight: 2.04 Kilograms
Minimum Height: 6 Inches
Color: Grey
Material Type: Polymer
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Apr 29
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: 1 Pack
Color: Grey
Good height for trailer jack, very substantially built. Good value compared to other brands.
Reviewed in the United States on April 4, 2026 by Michael H.
Size: 4 Pack
Color: Grey
Just received but impressed with construction and specs. Use will validate reliability. Gave 5 Stars for the blocks but not impressed with or expecting much out of the carry bag included. Thin and not rugged enough for expected long term use carrying blocks. Would buy set again.
Reviewed in the United States on March 12, 2026 by AM
Size: 1 Pack
Color: Grey
Have used three times already and works great
Reviewed in the United States on March 17, 2026 by Jayne L.
Size: 4 Pack
Color: Grey
I have reviewed a number of similar RV stabilizer blocks over the years, and found these to be lacking in a couple of areas. Having said that, there are also a couple of positives. So let’s start on a positive note. The price for a set of four blocks is very reasonable. The stacking feature and included carry bag makes it nice to store these in an RV. I also appreciate the short little piece of rope attached to each block which makes them easy to grab when packing up. Now for the not so positive. These blocks are designed for a number of different uses. First, let’s talk about the center hole which is compatible fifth most bumper tor trailer jacks without a foot. While the bottom of the hole is reinforced and does go all the way to the ground, it is lacking a metal “washer” at the bottom to help prevent the tongue jack from cutting into the plastic of the block. For those that plan to use this on a 5th wheel or even a tongue jack with a foot plate, there are no shoulders to help prevent the jack from slipping off. While that might be acceptable for the center or rear stabilizers, it is a little sketchy for the front landing gear on a 5th wheel, especially here in California where the ground tends to shake at times. My last concern is the minimal material at the bottom of the blocks. These will work just fine on a solid surface such as concrete, but don’t seem very well suited for grass or dirt. In the end, these will work, but they do have some limitations in my opinion.
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Reviewed in the United States on March 30, 2026 by GenuineEval
Size: 4 Pack
Color: Grey
I own a Carriage Cameo 5th Wheel RV that weighs about 18,000 loaded. It has massive Bigfoot Hydraulic leveling jacks that can easily lift the entire 5th Wheel off the ground - all 4 wheels in the air. These are not the same as the weak electric jacks used on most new RVs - these are four real hydraulic leveling jacks capable of lifting 8,000 pounds each. I was looking on Amazon for Jack Blocks worthy of my leveling system and came across these KIKIRV blocks that looked like they might be the item I wanted so I ordered them to try. What I like about these blocks: They are very sturdy - built to hold up to 40,000 pounds each. They are easy to carry considering how much weight they can support. They have a nice sized footprint - larger than the pads on my levelers but not so big as to be a tripping hazard. They give me 6" less distance my jacks have to travel so setup/teardown time is faster They function well and my RV's pad feet fit solidly on them. The soft case they come in fits neatly in the back seat floor of my truck, so I don't have to store them in the RV. The larger footprint give my RV added stability.
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Reviewed in the United States on March 28, 2026 by Carson
Size: 1 Pack
Color: Grey
I bought these specifically because they claimed to support 40,000 lbs for my heavy 5th wheel. I used them on a relatively level concrete pad, and under the weight of my rig (which is heavy, but nowhere near 40k), these things cracked and buckled instantly. They are made of cheap, brittle plastic, not a "high-performance polymer." This rating is a complete lie. Dangerous product. Do not trust these with your RV.
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Reviewed in the United States on March 19, 2026 by Roberto
Size: 4 Pack
Color: Grey
What an upgrade for my camper! Up until this point I have been lugging around numerous pieces of 6x6 blocks that not only take up space, but are also heavy. This product is lightweight and feels extremely sturdy. I love that they nest together to limit the space that they take up and all four of them weigh less than a single 6x6 block! The carrying case is also nice and prevent me from getting dirt/mud inside my storage area if we get stuck in a storm with the camper. If I could offer any suggestions, maybe a 5 piece set would also be nice. That way you would have 1 for each stabilizer jack and one for the tounge jack, however I think it would be pretty rare to need all 5 at the same time. I will absolutely recommend this product.
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Reviewed in the United States on April 6, 2026 by Ray L.
Size: 4 Pack
Color: Grey
These KIKIRV trailer jack blocks are a must-have for anyone with an RV or trailer! The build quality is outstanding—super sturdy and clearly designed to handle heavy loads with ease. Knowing they’re rated for up to 40,000 lbs gives a lot of confidence when setting up. They’re incredibly easy to use and stack securely, making leveling and stabilizing quick and hassle-free. I also love the wide base design—it adds great stability, even on softer ground. No slipping or shifting once everything is in place. The included carry bag is a huge bonus. It keeps everything organized and makes transport and storage really convenient. Despite how durable they are, they’re still lightweight enough to handle without any trouble. Overall, these blocks are reliable, well-made, and make setup so much smoother. Definitely a smart investment for any camper or traveler who wants stability and peace of mind on every trip!
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Reviewed in the United States on March 31, 2026 by Desert Garden by Grand Canyon