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WG9731520041 Front Left Leaf Spring Assembly for Sinotruk HOWO
- - Exact OEM Compatibility: Matches the original dimensions and specifications for HOWO front axle suspension, enabling direct bolt-on installation without modifications.
- - Heavy-Duty Steel Construction: Manufactured from premium 60Si2Mn spring steel, quenched and tempered for superior strength, toughness, and load-bearing capacity.
- - Enhanced Steering Stability: Multi-leaf design effectively absorbs road shocks, reducing chassis vibration and improving front-end handling and control under heavy payloads.
- - Long-Lasting Durability: Shot-peened surface treatment enhances fatigue resistance, ensuring extended service life even in harsh operating conditions.
- - Cost-Effective Solution: Offers factory-grade reliability at a competitive price point, perfect for fleet maintenance and export markets.
Parameter Details
OE Part Number WG9731520041
Product Type Front Left Leaf Spring Assembly
Material High-grade 60Si2Mn / 50CrVA spring steel
Overall Size 18mm (thickness) × 90mm (width) × 1650mm (length)
Leaf Quantity 13 pcs (standard configuration)
Net Weight Approx. 65 kg per set
Surface Treatment Anti-rust paint coating
Certification ISO/TS16949
Product Introduction
The WG9731520041 front left leaf spring assembly is a critical suspension component designed for the front axle of Sinotruk HOWO heavy-duty trucks. Consisting of multiple stacked steel leaves, it supports the vehicle’s weight while absorbing shocks and vibrations from uneven roads. The assembly undergoes strict heat treatment and shot peening processes to ensure high strength, fatigue resistance, and consistent performance under heavy loads. It plays a key role in maintaining chassis stability, improving steering response, and extending the service life of other suspension system components.
Applicable Models
- Sinotruk HOWO Series: 336HP, 371HP, 375HP, 380HP heavy-duty trucks
- Vehicle Types: 6x4 / 8x4 dump trucks, tractor units, mining trucks, and engineering vehicles
- Axle Fitment: Front axle suspension (left side) for standard HOWO chassis configuration
