Leaf Spring

The Leaf Spring (MPN P3412003) is a heavy-duty suspension component designed for trucks, trailers, and work vehicles that require reliable load-carrying capacity and consistent ride quality. This essential part of leaf spring suspension systems is engineered to withstand the continuous stress of supporting vehicle weight, absorbing road impacts, and maintaining proper chassis geometry across varying load conditions.

Leaf springs operate by stacking tapered steel leaves that flex under load, distributing weight evenly while providing progressive spring rate characteristics that enhance stability when fully loaded. The multi-leaf design minimizes stress concentration on any single element, which extends service life and prevents sudden failure under shock loads. With a weight of 37.6 lbs and dimensions of 13 x 3 x 56 inches, this spring is tailored for mid-to-heavy-duty applications where maximum deflection and load rating are crucial.

Mechanics and vehicle owners focused on suspension integrity should consider this leaf spring for rear-axle applications on pickup trucks, commercial vehicles, and utility trailers. Its robust construction ensures that it can handle sustained payloads without compromising ride height during normal operation, making it an ideal choice for those looking to restore or upgrade their vehicle's suspension system.