HOWO8x4 Front Left Spring WG9731520012 Sinotruk

Product Introduction

Structure

This front left leaf spring is a multi-layer laminated steel spring assembly specifically designed for HOWO 8×4 heavy-duty trucks. It consists of multiple high-strength steel leaves of varying lengths, stacked and clamped together with central U-bolts and side clips to form a curved, progressive spring profile. The ends feature reinforced spring eyes with inner bushings for pivot mounting, and the entire assembly is finished with a matte black anti-corrosion coating. The surface is marked with part numbers and branding for easy identification and traceability.

Performance

Manufactured from premium-grade spring steel (60Si2Mn) and subjected to controlled heat treatment, this leaf spring delivers exceptional tensile strength, fatigue resistance, and progressive stiffness. It is engineered to withstand the extreme loads, impacts, and torsional forces encountered in heavy-duty 8×4 operation, maintaining its structural integrity in temperatures ranging from -40°C to 120°C. The multi-layer design provides progressive spring rates, adapting to varying load conditions while ensuring a smooth, stable ride. The anti-corrosion coating provides superior protection against rust, salt spray, and chemical exposure, ensuring long-term durability in diverse operating environments.

Core Function

1. Serves as the primary load-bearing and suspension component for the front axle of HOWO 8×4 trucks, supporting the vehicle weight and absorbing road impacts and vibrations.

2. Provides progressive stiffness to adapt to varying load conditions, maintaining consistent ride height and improving vehicle stability and handling.

3. Distributes loads evenly across the front axle, preventing localized stress concentrations and component deformation, ensuring the integrity of the front suspension system.