Sturdy Leaf Spring manufactures high-quality Howo / SinoTruk Truck Multi Leaf Spring OE WG971952002 for heavy-duty truck suspension systems. Manufactured from premium spring steel and processed through precision heat treatment, quenching, tempering and shot peening, this leaf spring delivers outstanding strength, fatigue resistance and long service life. It is designed as a direct OEM replacement, ensuring reliable performance under demanding commercial transportation conditions.
Item |
Specification |
| Product Name | HOWO Multi Leaf Spring |
| OE Number | 9483201405 |
| Brand | WG9719520020 |
| Position | Rear |
| Spring Type | Conventional Leaf Spring |
| Material | 60Si2Mn / SUP9 / SUP10 / 55CrMn |
| Surface | Electrophoretic Coating |
| Heat Treatment | Quenched & Tempered |
| MOQ | 50 Pieces |
| Origin | China |
Manufactured using premium 60Si2Mn, SUP9 or 55CrMn spring steel for superior strength and durability.
Every leaf spring undergoes controlled quenching and tempering to achieve excellent hardness and fatigue resistance.
Shot peening introduces compressive stress to improve fatigue life and reduce cracking.
Electrophoretic coating provides excellent resistance against rust and harsh operating environments.
✓ 22 Years Manufacturing Experience
✓ 2000+ Leaf Spring Models
✓ OEM & Aftermarket Supply
✓ ISO Quality Control
✓ Export to 30+ Countries
✓ Factory Direct Supply





The OE 60Si2Mn leaf spring is designed for selected HOWO/ SINOTRUK heavy-duty truck suspension systems.
Yes. We provide OEM and customized leaf spring manufacturing services.
60Si2Mn, SUP9, SUP10, 55CrMn and other spring steels according to customer requirements.
Electrophoretic coating, painting or customized coating.
Usually 30–50 days depending on order quantity.
Yes. We supply complete assemblies as well as individual leaf spring blades.