--- product_id: 353793321 title: "OX BLOX Heavy Duty Trailer Jack Block - RV Leveling Blocks & Stabilizer Pads - 10,000 lbs Capacity - Made in USA from Recycled Plastic - for Tongue Jack, 5th Wheel, Camper & Travel Trailer" brand: "ekon" price: "Β₯19929" currency: JPY in_stock: true reviews_count: 11 url: https://www.desertcart.jp/products/353793321-ox-blox-heavy-duty-trailer-jack-block-rv-leveling-blocks store_origin: JP region: Japan --- # 10,000 lb. load capacity 100% recycled heavy-duty plastic Proudly made in USA OX BLOX Heavy Duty Trailer Jack Block - RV Leveling Blocks & Stabilizer Pads - 10,000 lbs Capacity - Made in USA from Recycled Plastic - for Tongue Jack, 5th Wheel, Camper & Travel Trailer **Brand:** ekon **Price:** Β₯19929 **Availability:** βœ… In Stock ## Summary > 🚐 Level up your adventure with the last jack block you'll ever need! ## Quick Answers - **What is this?** OX BLOX Heavy Duty Trailer Jack Block - RV Leveling Blocks & Stabilizer Pads - 10,000 lbs Capacity - Made in USA from Recycled Plastic - for Tongue Jack, 5th Wheel, Camper & Travel Trailer by ekon - **How much does it cost?** Β₯19929 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/353793321-ox-blox-heavy-duty-trailer-jack-block-rv-leveling-blocks) ## Best For - ekon enthusiasts ## Why This Product - Trusted ekon brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Versatile Fit:** Engineered to perfectly stabilize RV tongue jacks, horse trailers, boat trailers, and more. - β€’ **Patented Precision:** Innovative Utah-engineered design ensures maximum durability and stability you can trust. - β€’ **Unmatched Strength:** Supports up to 10,000 lbs for rock-solid stability under any RV or trailer. - β€’ **Eco-Chic Durability:** Crafted from 100% recycled plasticβ€”tough on wear, gentle on the planet. - β€’ **Effortless Leveling:** Simplify your setup with blocks designed to make leveling your camper a breeze. ## Overview The OX BLOX Trailer Jack Block is a heavy-duty, 10,000 lb. capacity stabilizer made from 100% recycled plastic and proudly manufactured in the USA. Its patented design offers unmatched strength and versatility, fitting a wide range of RV and trailer jacks to provide effortless leveling and rock-solid support for your camper or trailer setup. ## Description OX BLOX are designed to stack on top of each other while still maintaining the same stability and strength. Even when stacked, OX BLOX are rated up to 10,000 lbs. OX BLOX trailer jack blocks are designed and manufactured in the USA. ## Features - Strongest Trailer Jack Block on the Market: Rated up to 10,000 lbs per block, OX BLOX are built to handle tongue jacks, post jacks, foot jacks, scissor jacks, and stabilizer jacks β€” round or square. Use as a trailer jack stand, RV leveling block, or stabilizer pad for travel trailers, 5th wheels, boat trailers, horse trailers, and more. - Stable on Any Surface: The patented design (US 11,673,440 B2) keeps your trailer stable on gravel, grass, dirt, and pavement. Engineered by Utah-based designers to eliminate wobble and sway, these RV jack blocks give you rock-solid support whether you are at a campsite, on a job site, or parked in your driveway. - Stackable for Extra Height: Stack multiple OX BLOX on top of each other for added lift β€” rated to 10,000 lbs even when stacked. Works as a camper leveling block, tongue jack block, or hitch block to get your RV perfectly level on uneven ground. - Made in the USA from Recycled Plastic: Compression-molded from 100% recycled plastic right here in America. UV and temperature resistant β€” built to last through years of camping trips, seasonal storage, and harsh weather without cracking or degrading. - Easy to Carry: Grab handles on each side make these RV stabilizer blocks easy to move around your rig. At just over 8 lbs each, they take up minimal storage space in your camper or truck bed. OX BLOX camper blocks for jacks are the last trailer jack pads you will ever need to buy. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B09DMM51FP | | Best Sellers Rank | #4,197 in Automotive (See Top 100 in Automotive) #8 in RV Jacks & Stabilizers | | Brand Name | EKON | | Color | Black | | Compatible With Vehicle Type | RV, Trailer | | Customer Reviews | 4.8 4.8 out of 5 stars (1,946) 4.8 out of 5 stars | | Included Components | Comes with housing | | Item Dimensions | 9.29 x 11.89 x 6.5 inches | | Item Weight | 8.82 Pounds | | Load Capacity | 10000 pound | | Manufacturer | EKON | | Manufacturer Part Number | EKJS | | Manufacturer Warranty Description | 2-Year Manufacturer Warranty | | Material Type | Plastic | | Minimum Height | 6.5 Inches | | Model Number | EKJS | | Style Name | Tongue Jack | | Unit Count | 1.0 Count | | Upc | 860007379703 | ## Product Details - **Brand:** EKON - **Color:** Black - **Load Capacity:** 10000 pound - **Material:** Plastic - **Vehicle Service Type:** RV, Trailer ## Images ![OX BLOX Heavy Duty Trailer Jack Block - RV Leveling Blocks & Stabilizer Pads - 10,000 lbs Capacity - Made in USA from Recycled Plastic - for Tongue Jack, 5th Wheel, Camper & Travel Trailer - Image 1](https://m.media-amazon.com/images/I/814Sm9cm3dL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Do these blocks nest or are they solid?** A: OX BLOX Jack Blocks are designed to stack and lock in place on top of one another. However, they are not solid and do not nest. The underside of the blocks has heavy duty cross ribs that go the entire height of the block to increase load capacity. **Q: Will the foursquare prongs on the aux block fit into the four holes on a yellow Camco leveling block?** A: No! Don't use OX BLOX with Camco Yellow blocks! They are NOT compatible. Only use OX BLOX with OX BLOX. **Q: How much will it support double stack** A: 10,000 lbs. Double stacked the max weight is the same as a single OX BLOX jack block. I stack three OX BLOX jack blocks to support my personal trailer frame. Of course you want to make sure you’re on stable level ground when stacking. These blocks are super heavy duty, but they do not defy the laws of physics. **Q: What happened to metal plate in tongue jack hole, just curious since i have 5 with it & 4 without now?** A: Early on a small number of OX BLOX jack blocks were offered with a stainless steel plate in the post hole. However we discontinued the metal plate early on after receiving customer feedback suggesting the metal plate was not really valued. If there is enough interest we would definitely consider offering it again as an option or add on. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Takes a beating. *by on Reviewed in the United States May 26, 2026* Very sturdy, could have another stop or nub on the side to keep the trailer from sliding a but its good for the job its doing. ### ⭐⭐⭐⭐⭐ Sturdy and dependable! *by on Reviewed in the United States May 21, 2026* Great product! Have used this for a few years now on several different trailers. Very sturdy and good weight. I do recommend covering finger holes on sides with duct tape or will get critters in there! ### ⭐⭐⭐⭐⭐ Works great *by on Reviewed in the United States May 9, 2026* Very heavy-duty and works well on my toy hauler definitely sturdy and well built ## Frequently Bought Together - OX BLOX Heavy Duty Trailer Jack Block - Made in USA - Super Strong and Durable - 100% Recycled Plastic RV Jack Blocks - Trailers & Camper Essentials - MAXXHAUL 70472 Solid Rubber Heavy Duty Black Wheel Chock 2-Pack, 8" x 4" x 6" - Camco Tastepure RV Water Filter - New & Advanced RV Inline Water Filter with Flexible Hose Protector - GAC & KDF Filtration - Made in USA - Camping Essentials for Fresh Drinking Water (40043) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/353793321-ox-blox-heavy-duty-trailer-jack-block-rv-leveling-blocks](https://www.desertcart.jp/products/353793321-ox-blox-heavy-duty-trailer-jack-block-rv-leveling-blocks) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-06-20*