TOWKING Upgraded 12,000 lbs Trailer Jack Block — 6" High, Stackable RV Stabilizer for Travel Trailers & 5th Wheels | 1 Pack

Stable, travel-ready support for your trailer

Meet the TOWKING Upgraded 12,000 lbs Trailer Jack Block, a heavy-duty stabilizer engineered to level and steady travel rigs on uneven ground. With a 6-inch base height and a quick rise to about 8.6 inches, it’s designed to travel with you, helping reduce wobble and shifting on gravel, mud, or grass.

Key advantages in real-world use include a universal 10-inch platform with a 2.5-inch hole that fits all jack feet — tongue jacks, wheel jacks, scissor jacks, and many 5th wheel setups. The anti-tilt cone base with eight ribs provides better contact on irregular surfaces, enabling steadier setup and confident positioning.

Smart, secure stacking

The design cycles from 6 inches to 8.6 inches in seconds, and a built-in locking mechanism keeps components aligned to prevent shifts during transport and use.

Designed for convenience on the road

• Drain holes help water escape, reducing corrosion risk and extending life.
• Ergonomic grip aids handling during placement under the jack.
• Quick-strap and a rugged 600D carry bag keep every piece organized and travel-ready.

Two practical bulletproof lists

• 12,000 lb capacity; reliable support for typical travel rigs.
• Universal 10 inch platform with 2.5 inch hole for broad compatibility.
• Anti-tilt cone base with 8 ribs to minimize wobble.
• 6 inch to 8.6 inch stacking range for flexible leveling.
• Integrated drain holes, ergonomic grip, quick-strap, and 600D bag for on-the-road use.

What you get is a streamlined, travel-ready system packed into one durable block. It’s not a guaranteed fix, but it offers a practical option for stabilizing many travel trailers and fifth wheels when parking on varied terrain.

When planning a trip or extended stop, consider how this block can complement your existing setup. It’s designed to be robust, simple to deploy, and compact enough to tuck into your kit alongside hitch accessories. Use it as part of your leveling routine to reduce movement when stepping in and out of the trailer, or to provide a stable base for leveling jacks on uneven ground.