EKON OX BLOX MAXX heavy-duty 5th wheel/RV jack block — 9.25" recessed pad, 10,000 lb capacity, UV-resistant recycled plastic

EKON OX BLOX MAXX is a heavy-duty, US-made trailer jack block designed to stabilize 5th wheel and RV jacks by providing a larger, non-slip bearing surface and corner ridges to resist movement.

When leveling and stabilizing a travel trailer or fifth-wheel, the interface between the jack foot and the ground matters. The EKON OX BLOX MAXX replaces flimsy wood or small pads with a rugged recycled-plastic block engineered to spread load, resist UV degradation, and lock the jack foot in place. Its patent-pending geometry and reinforced webbed underside deliver a reliable 10,000 lb capacity while keeping the overall profile lower than a bucket-style block.

How does this jack block improve RV stability?

The OX BLOX MAXX increases the contact area and uses raised corner ridges to hold a 9" round jack foot securely, reducing wobble and movement under load. The webbed base distributes weight evenly and reduces stress on soft ground.

• 9.25" recessed pad area matches large round jack feet.
• Corner ridges lock the jack foot for lateral stability.
• Webbed underside enlarges bearing surface to prevent sinking.
• 10,000 lb capacity for heavy-duty trailers and fifth-wheels.

Will the block fit my 5th wheel or stabilizer jack?

OX BLOX MAXX is shaped to accommodate a 9" large round jack foot common on many 5th wheels and RVs; the recessed pad and 5.25" gap between ridges ensure a snug fit. Its 4.25" height gives a lower profile than bucket blocks while still providing solid elevation and support.

• Recessed 9.25" circle pad suits large round jack feet.
• 5.25" spacing between ridges centers the jack foot properly.
• 4.25" height offers convenient, low-profile support.
• 10.5 x 10.5 x 4" external dimensions for predictable clearance.

How durable and weather-resistant is this block?

Made in the USA from UV-resistant recycled plastic, the OX BLOX MAXX resists sun degradation and holds up to outdoor exposure better than untreated wood. The construction and patent-pending design are intended for repeated use under heavy loads without cracking or splitting.

• UV-resistant recycled plastic for long-term outdoor use.
• Heavy-duty 6.8 lb solid block withstands repeated loading.
• Engineered web structure prevents deformation under weight.
• Patent-pending American design and manufacturing.

How much load can these jack blocks handle safely?

The OX BLOX MAXX is rated to support up to 10,000 pounds thanks to its reinforced geometry and expanded bearing surface. That rating makes it suitable for many travel trailers and fifth-wheels when used as intended to stabilize a jack foot or stabilizer leg.

• 10,000 lb capacity per block under standard conditions.
• Larger surface area reduces point loading on soft ground.
• Designed to be used as part of proper jack and leveling procedures.

Who is this for: The EKON OX BLOX MAXX is for RV owners, fifth-wheel tow operators, and professional haulers who need a dependable, low-profile jack support that resists slipping and sinking. It's especially useful for people replacing worn wooden blocks or small factory pads, and for anyone who camps on varying ground where a larger, durable bearing area improves safety and comfort. These blocks are assembled in the USA and appeal to buyers seeking heavy-duty, UV-resistant gear that lasts season after season.