Full Taper Leaf Spring OEM: WG9525523004 For HOHAN Truck is manufactured from high-quality spring steel for heavy-duty suspension systems. Designed with a full taper structure, it provides stable load distribution, high fatigue resistance, and reliable performance for commercial truck suspension, replacement, and fleet maintenance applications.

Specifications
|
Spring Number |
2 |
|
Size |
90x30 |
|
Painting Colour |
Black,gray,red |
|
Bushings |
Bi-Metal Bushings |
|
Application |
HOHAN, SINOTRUK |
|
OEM References |
WG9525523004 |
|
Spring Material |
60Si2Mn SUP9/55CrMn 50CrVA 51CrV4 52CrMoV4 |
|
Packing Way |
Square Wood Wooden Pallet Metal Pallet |
|
MOQ |
50 |
|
Warranty time (used time) |
6 months |
Key Advantages

- High-grade spring steel provides excellent strength and long service life.
- Full taper design improves stress distribution, helping reduce fatigue cracks and extend spring durability.
- Heat-treated and precision-formed construction ensures consistent elasticity and stable suspension performance.
- Electrophoretic coating offers superior corrosion resistance and better long-term storage protection than conventional painting.
- Bi-metal bushings enable easier installation, reduce wear, and help lower maintenance costs for fleet operators.
Typical Applications
Commercial vehicle repair and maintenance
Fleet maintenance centers
Truck spare parts distribution
Commercial vehicle aftermarket
Customization Options
Product Customization
|
Item |
Available Options |
|
Spring Material |
60Si2Mn, SUP9/55CrMn, 50CrVA, 51CrV4, 52CrMoV4 |
|
Dimensions |
OEM specifications or custom drawings |
|
Number of Leaves |
Custom available |
|
Camber & Load Capacity |
Customized for application requirements |
|
Bushings |
Bi-metal bushings or specified types |
|
Surface Finish |
Electrophoretic coating, manual painted finish |
|
Color |
Black, Gray, Red, or customized colors |
Branding Service
- OEM manufacturing
- Custom part number marking
- Logo printing or stamping
- Customized labels and cartons
- Private packaging solutions
- Customer-specific shipping marks
Manufacturing & Quality Assurance
Manufacturing Process
- Raw material verification
- Steel cutting and sizing
- Leaf rolling and taper forming
- Heat treatment and quenching
- Tempering process
- Shot blasting
- Assembly and bushing installation
- Electrophoretic coating or customized painting
- Final assembly and packaging
Quality Assurance
- Chemical composition analysis
- Dimensional inspection
- Hardness testing
- Camber measurement
- Load and deflection testing
- Fatigue resistance inspection
- Coating thickness inspection
- Surface defect inspection
FAQ
Q: Can I order samples before bulk purchasing?
A: Yes. Sample orders are available for quality evaluation before mass production.
Q: What is the production lead time?
A: Standard orders are generally completed within 15–30 days. Orders with multiple specifications or special materials may require additional production time.
Q: Can you provide third-party or factory inspection before shipment?
A: Yes. Factory inspection is available, and third-party inspection arranged by the buyer is also accepted before shipment.
Q: Can different OEM numbers be combined in one container?
A: Yes. Mixed loading of multiple OEM numbers and specifications is supported according to order quantities.
Q: Which ports are available for shipment?
A: Available ports include Qingdao, Tianjin, Shanghai, Guangzhou, Ningbo, and Yiwu.
Q: What payment terms do you accept?
A: Our standard payment term is 40% T/T deposit, with the remaining 60% paid before shipment. Other terms can be discussed for long-term cooperation.
Q: What after-sales support do you provide?
A: We provide technical assistance, quality issue analysis, product traceability, and warranty support. The standard warranty period is 6 months under normal operating conditions.
Q: How should leaf springs be stored before installation?
A: Store the products indoors in a dry, well-ventilated environment. The electrophoretic coating provides enhanced corrosion protection during long-term storage, but prolonged exposure to moisture or corrosive environments should be avoided.
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