TOWKING TK-TJB-RL4 Trailer Jack Blocks, 4-Pack, 12,000 lb

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Product guide

TOWKING TK-TJB-RL4 Trailer Jack Blocks, 4-Pack, 12,000 lb

Pack: TOWKING TK-TJB-RL4 trailer jack blocks are a four-piece polypropylene set listed with a 12,000-pound load capacity and 4.3-inch height. Their compact lift is intended for supporting a trailer jack foot, rather than raising a wheel for leveling.

At a glance

The listed 4.3-inch height gives a low-profile support option for trailer and RV jack feet.
The feature description says the blocks have a cone base, reinforcing ribs, drain holes, and an ergonomic grip.
A bag is listed among the included components for storage and carrying.

Price

$55.99Save 20%

Reference price: ~~$69.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Four blocks are listed, giving buyers a set rather than a single support block.
Polypropylene construction and a listed 11.3-inch square footprint make the dimensions and material easy to compare with a jack foot and storage space.
The manufacturer lists the set for ATV, car, RV, and trailer use.

Cons

At a listed height of 4.3 inches, these blocks provide limited lift compared with taller support options.

Technical specifications

9 specifications

Identity
Brand	TOWKING
Model	TK-TJB-RL4

Capacity and height
Listed load capacity	12000 Pounds
Maximum lifting height	4.3 inches

Dimensions and installation
Dimensions listed	11.3 x 11.3 x 4.3 inches
Weight listed	11.5 pounds
Vehicle types listed	ATV, Car, RV, Trailer
Fit type	Universal Fit

Materials and protection
Material listed	Polypropylene

What to know before buying

The listing describes these as trailer jack blocks with a 4.3-inch maximum lifting height. Confirm that this height and the block footprint suit your jack and intended support setup. The listed 12,000-pound capacity is a manufacturer claim, not a verified rating for every configuration or surface. The feature text also claims a 10-inch platform and 2.5-inch hole, which are not reconciled with the listed 11.3-inch item dimensions, so verify fit for your jack foot before buying.

What’s in the box

Included

4 trailer jack blocks
1 bag

Who is it for?

A good fit for

RV and trailer owners seeking low-profile blocks to support a jack foot.
Buyers who want four polypropylene blocks and a listed storage bag in one set.

Less suited to

Anyone needing substantial wheel-lifting height or a replacement for vehicle-specific lifting equipment.

TOWKING TK-TJB-RL4 Trailer Jack Blocks, 4-Pack, 12,000 lb · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.7 / 5 · 30 ratings

5 stars78%78%
4 stars17%17%
3 stars5%5%
2 stars0%0%
1 star0%0%

Aggregate ratings skew positive, with most ratings in the five-star category and a smaller share in four- and three-star categories. The sample is limited, and there are no customer-comment details to explain the ratings. For buyers considering these blocks, ratings alone cannot establish how well they fit particular jack feet or perform under specific loads.

Frequently asked questions

How tall are the TOWKING TK-TJB-RL4 blocks?

The listing gives a maximum lifting height and minimum height of 4.3 inches. This is a low-profile support height, not a tall wheel-leveling lift.

What is included in the set?

The listed package contents are four trailer jack blocks and one bag.

What is the listed load capacity?

The listing states 12000 Pounds. Treat that as a manufacturer claim and confirm that the product suits your particular jack, load, and setup.

Will these fit any jack foot?

The feature text claims broad jack-foot compatibility, but it also gives a 10-inch platform and 2.5-inch hole while the item dimensions are listed as 11.3 x 11.3 x 4.3 inches. Check the dimensions against your jack foot before purchase.