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Life Hack Curt L05 Flex Air Pin Box - 18,000 Lbs Pro Version [Nza9rsAG]

$81.99 $262.99 -69%

Curt L05 Flex Air Pin Box: Enhanced Towing Stability Experience unparalleled stability and smoothness on the road with the CURT L05 Flex Air Pin Box. Designed for 5th wheel RVs and trailers, this innovative pin box is the perfect solution for those s

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Life Hack Curt L05 Flex Air Pin Box - 18,000 Lbs Pro Version [Nza9rsAG]

Curt L05 Flex Air Pin Box: Enhanced Towing Stability

Experience unparalleled stability and smoothness on the road with the CURT L05 Flex Air Pin Box. Designed for 5th wheel RVs and trailers, this innovative pin box is the perfect solution for those seeking a more comfortable and controlled towing experience. With its Air Ride technology and Rota-Flex pivoting head, the Flex Air Pin Box significantly reduces fore to aft movement and vertical tug-of-war, ensuring a stable and secure connection between your tow vehicle and trailer.

Advanced Features and Specifications

The CURT L05 Flex Air Pin Box is engineered to provide top-notch performance and durability. Its internal air bag moves in a scissor-like motion to absorb vibrations, while a rubberized compound softens jarring movements. An oil shock absorber handles rebound action, dampens kickback, and controls chucking for a smoother ride. This pin box is designed to replace Lippert 1621 5th wheel pin boxes and is ready for installation with no additional hardware required. Constructed with high-strength steel and finished with a black powder coat, it is built to last and resist rust, ensuring years of reliable service.

Improved Towing Experience

Whether you're a frequent traveler or a weekend adventurer, the CURT L05 Flex Air Pin Box is designed to enhance your towing experience. By reducing chucking and absorbing road shock, this pin box ensures a smoother and more comfortable ride, even on rough roads. Its 18,000-lb. towing capacity makes it suitable for heavy-duty applications. The Flex Air Pin Box is a must-have for anyone looking to upgrade their towing setup and enjoy a safer, more enjoyable journey. Say goodbye to unwanted movement and hello to a stable and controlled tow with the CURT L05 Flex Air Pin Box.

What Our Customers Say

January 23, 2026

Absolutely no complaints!

This is a perfect example of true quality.

- Melody O..

January 23, 2026

Absolutely no complaints!

This is a great item. And many thanks.

- Beatrice O..

January 23, 2026

Absolutely no complaints!

I am overjoyed with this superb product.

- Mia H..

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