Trailer Air Spring Bag Replacement for Firestone 8729

This replacement air suspension kit by lanstixr serves as a direct substitute for multiple part numbers, including Firestone W01-358-8729, 1T17BB2, W01-R88-8729, Goodyear 1R13130, 1R13-130, ContiTech 1010AV13P513 and 1010B13S513, Arvin Meritor 202796 and A2258F1410, Springride 1R13261, and Triangle 8513. To ensure proper application, it is recommended to contact your dealer prior to purchase to verify the specific part number rather than relying solely on the vehicle make and model.

Constructed from high-quality raw SPHC steel and natural rubber materials, the air spring is built to provide strong sealing and effectively reduce air leakage for stable characteristics and high reliability. The design incorporates an extended height of 14.00″ and a compressed height of 4.70″, alongside a top plate width of 10.38″ and a piston width of 10.16″.

Engineered to support suspension performance, the unit helps prevent sagging and uneven suspension while keeping the air compressor from running excessively. It is also designed to absorb road shocks and vibrations, contributing to a controlled ride during on-road and off-road operation.