OULEME GT25H Trailer Jack Block, 15,000 lb Claim

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Product guide

OULEME GT25H Trailer Jack Block, 15,000 lb Claim

Claim: The OULEME GT25H trailer jack block is a 6.3-inch-high HDPE support block for trailer and RV jack feet, posts and wheels. Its broad stated compatibility and stackable design may suit buyers seeking a stable base, but the single-block height may not satisfy those who need more lift.

At a glance

Grooved top is described as helping the blocks remain stable when stacked. The listing gives a double-stacked height of 11.1 inches.
A recessed post hole with an iron plate is intended to help keep a post jack from sliding.
The listing claims compatibility with square and round jack feet, tongue jack posts and wheels, and scissor stabilizers.

Price

$29.69Save 18%

Reference price: ~~$35.99~~

Price checked: Nov 14, 2026

View offer

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Pros and cons

Pros

Broad stated fit range covers several common trailer jack shapes and configurations.
The 6.3-inch block can be stacked to the listed 11.1-inch height when more height is needed.
The claimed 15,000-pound capacity is specified per block.

Cons

At 6.3 inches tall individually, it may not provide enough lift for buyers who need a taller support block.

Technical specifications

16 specifications

Identity
Brand	OULEME
Model	GT25H

Dimensions and installation
Dimensions listed	11.2 x 8.8 x 6.3 inches
Minimum height	6.3 inches
Top dimensions	L 9.3", W 7"
Bottom dimensions	L 11.2", W 8.8"
Height when double-stacked	11.1"

Materials and protection
Material listed	HDPE
Color	Black
Material description	recycled plastic with added anti-UV aging additives

Compatibility and load
Vehicle service type	Trailer, Truck
Load capacity	15000 pounds
Listed jack fit	almost all of the square jack foot, round jack foot up to 9", 2" tongue jack post, 6x2" tongue jack wheel, scissor stabilizer, and more

Design and support
Stacking feature	The top of the product features a groove design that enhances stability when stacked for use
Post hole feature	The jack block has a recessed post hole with an iron plate mounted at the bottom of the hole to prevent the post jack from sliding and is more wear-resistant
Warranty description	Manufacturer warranty for 90 days from date of purchase.

What to know before buying

The listed 15,000-pound capacity is a manufacturer claim, not an independently verified rating. Confirm the block's fit with your jack and follow the trailer and jack manufacturers' loading guidance. The listing says it can be double-stacked but does not state a stacked-load rating.

What’s in the box

Included

Trailer jack block

Who is it for?

A good fit for

RV and trailer owners looking for a support block for compatible tongue, wheel, post or stabilizer jacks.
Buyers who want a block that can be stacked for additional height and easier storage or transport.

Less suited to

Buyers who need a single block taller than 6.3 inches or require a documented capacity rating for a stacked setup.

OULEME GT25H Trailer Jack Block, 15,000 lb Claim · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.8 / 5 · 269 ratings

5 stars89%89%
4 stars8%8%
3 stars2%2%
2 stars0%0%
1 star1%1%

Customer feedback highlights perceived solid construction, quality and stability, along with a lightweight design that is convenient to store and transport. Height feedback is mixed, with some customers satisfied and others wishing for more lift. That concern is relevant because the listed single-block height is 6.3 inches, with 11.1 inches stated when double-stacked. The favorable aggregate rating is encouraging but does not establish performance for every jack or setup.

Positive themes

Customers describe the block as solidly constructed and appreciate its stability.
Customers report that its lightweight design makes storage and transport convenient.

Mixed feedback

Height feedback is mixed, with some customers wanting a couple of inches more.

Frequently asked questions

How tall is the OULEME GT25H block?

The listed dimensions give a height of 6.3 inches. The listing says double-stacked blocks reach 11.1 inches.

Which jacks is this block listed to fit?

The manufacturer lists square jack feet, round feet up to 9 inches, 2-inch tongue jack posts, 6x2-inch tongue jack wheels and scissor stabilizers. Check your jack's contact dimensions before buying.

What load can the block support?

The manufacturer claims a capacity of 15,000 pounds per block. The listing does not provide a separate capacity for a stacked setup.

What do customers report about its height?

Feedback is mixed. Some customers find the height suitable, while others would prefer a block a couple of inches taller.