Andersen | Single 4" Trailer Jack Block | 3684 | 4" Tall | 9" Round | Red

Trailer Jack Block 3684 – Heavy-Duty RV & 5th Wheel Stabilizer

Effortless RV Stabilization with Magnetic Attachment

Make leveling your RV or 5th wheel faster, safer, and stress-free with our Trailer Jack Block. Designed for ultimate convenience and durability, this block magnetically attaches to your jack pad for instant stability—no more double-checking or manual adjustments.

Key Features:

• Magnetic Locking System
  Built-in magnets snap the block into place on your jack pad—no shifting or slipping.

• Heavy-Duty Performance

  • Supports up to 30,000 lbs per block

  • Rated for 20,000 lbs when double stacked

  • Compatible with jack pads up to 9" round

• 4” Height for Optimal Lift
  Provides reliable lift and helps reduce wear and tear on your jacks.

• Proudly Made in the USA
  Manufactured with high-quality, durable plastic for long-term use.

• Lifetime Warranty Included
  Coverage on all plastic components.

  • (Note: Warranty excludes rusted magnets and screws.)

Perfect for:

• 5th Wheels

• Travel Trailers

• Motorhomes

• Toy Haulers

Upgrade your RV setup with the Trailer Jack Block and experience smoother, more stable camping.

Order now and stabilize your RV with confidence!