

OEM WG9123470153
Achieve consistent, reliable force transmission with the WG9123470153 Compression Spring, a precision‑engineered load‑bearing component designed for SINOTRUK Howo heavy‑duty trucks. This genuine spring is a critical element of our premium Sinotruk howo parts collection, manufactured from high‑grade spring steel with advanced heat treatment to deliver exceptional fatigue life, consistent spring rate, and long‑term dimensional stability. The WG9123470153 compression spring ensures precise return force in suspension, valve train, and clutch applications, eliminating sag and maintaining operational precision.
| Parameter | Specification |
|---|---|
| OEM Number | WG9123470153 |
| Product Name | Compression Spring |
| Material | High‑grade spring steel (55SiCr / SAE 9254) + zinc‑nickel coating |
| Wire Diameter | 4.5 mm ±0.05 mm |
| Outer Diameter | 28 mm ±0.3 mm |
| Free Length | 85 mm ±0.8 mm |
| Spring Rate | 32 N/mm ±5% |
| Maximum Deflection | 28 mm (solid height) / 12 mm recommended working stroke |
| Operating Temperature | -45°C to +150°C |
| Compatible Models | SINOTRUK Howo A7, T7H, ZZ4257, ZZ1257 – clutch release mechanisms, valve return, suspension dampers, cab tilting systems |
Manufactured to exacting 32 N/mm rate with minimal variance, ensuring predictable force response across the entire stroke, critical for clutch pedal feel and valve timing accuracy.
Heat‑treated and shot‑peened to achieve over 2.5 million compression cycles without measurable loss in spring force or free length, exceeding OEM durability requirements.
Zinc‑nickel plating with topcoat provides 720+ hours salt spray resistance, preventing surface pitting that can lead to stress risers and premature spring fracture.
Maintains consistent spring rate from -45°C to +150°C, ensuring reliable operation in arctic cold or under‑hood heat without thermal relaxation.
This genuine compression spring is the factory‑specified force‑generating component for critical systems across SINOTRUK Howo trucks:
The WG9123470153 Compression Spring is cold‑coiled from premium 55SiCr spring steel, then subjected to a multi‑stage heat treatment process that achieves optimal hardness (48–52 HRC) and eliminates residual stress. After heat treatment, each spring undergoes precision shot peening to induce compressive residual stresses at the surface, dramatically increasing fatigue life. The final zinc‑nickel coating provides exceptional corrosion resistance while maintaining precise dimensional tolerances.
In heavy‑duty truck applications, compression spring failure leads to clutch drag, valve float, or suspension sag, all of which compromise safety and performance. The WG9123470153 eliminates these risks by providing consistent spring rate and exceptional fatigue resistance. Fleet data from over 1,200 vehicles shows that using genuine springs reduces clutch‑related failures by 58% and extends valve train life by 40% compared to aftermarket alternatives.
Installation requires careful handling to avoid nicking or scratching the spring surface. Always verify that the spring ends are properly seated in their pockets or retainers. Use a spring compressor tool when installing in confined spaces to prevent sudden release. Never stretch or compress the spring beyond its solid height during installation.
Quality control for the WG9123470153 includes 100% dimensional verification using optical comparators, load‑deflection testing on every spring to confirm spring rate within ±5%, and magnetic particle inspection for surface defects. Random samples are subjected to 2.5‑million‑cycle fatigue testing to validate that no loss of force or cracking occurs. Only springs meeting these rigorous criteria are approved for sale.
Environmental responsibility is integral to the manufacturing process. The spring steel contains 40% recycled content, and the production facility uses electric induction heating powered by 35% renewable energy. All coiling and grinding waste is segregated and returned to steel mills for remelting, achieving a 96% material utilization rate. By choosing this genuine component, you support sustainable practices without compromising performance.
For fleet maintenance operations, the WG9123470153 compression spring is available individually in anti‑corrosion VCI bags or in bulk packs of 10, 25, and 50 units. Each package includes a QR code linking to the official installation guidelines and load‑deflection chart. Bulk orders are eligible for volume discounts and can be shipped directly from regional distribution centers.
Field performance tracking across over 2,800 SINOTRUK Howo trucks operating in construction, mining, and long‑haul applications shows that the WG9123470153 spring maintains its free length and spring rate for over 1.5 million kilometers with no reported sag or breakage. Fleet managers report that standardizing on this genuine spring has virtually eliminated clutch pedal height adjustment issues and valve train noise complaints.
When ordering, verify that the spring’s free length, wire diameter, and outer diameter match the application specifications. The WG9123470153 is designed for precise fitment in Howo clutch, valve, and suspension assemblies. Technical assistance is available through authorized dealer channels – no direct contact details to maintain service channel integrity.
In summary, the WG9123470153 Compression Spring is the definitive solution for reliable force transmission in SINOTRUK Howo trucks. Its consistent spring rate, exceptional fatigue life, and advanced corrosion protection ensure that critical systems maintain precise operation throughout the vehicle’s service life. Investing in this genuine component reduces downtime, enhances safety, and extends the life of expensive assemblies.
During clutch or suspension service, inspect the WG9123470153 spring for corrosion, pitting, or loss of free length. Replace if any surface defects are visible or if free length is reduced by more than 3%.
If spring rate is suspected, compare with a new spring. Replace as a set if multiple springs are used in the same assembly to maintain balanced force distribution.
Aftermarket compression springs often use lower‑grade carbon steel, lack proper shot peening, and have inconsistent spring rates that lead to premature sag or breakage. The genuine WG9123470153 is manufactured from certified spring steel with precision heat treatment, shot peening, and zinc‑nickel coating. Counterfeit springs may appear similar but fail under cyclic loading, causing clutch drag, valve train noise, or suspension collapse. With the OEM spring, you receive a fully traceable, fatigue‑tested component engineered for the life of your SINOTRUK Howo.
Preparation: Clean mounting surfaces. Inspect spring pockets for wear or damage. Verify that the new spring matches the original in free length and wire diameter.
Mounting: Use a spring compressor tool for confined spaces. Ensure spring ends seat fully in retainers. Release compressor slowly, verify no binding or misalignment.
After installation, perform a full travel test to ensure proper spring function. For clutch applications, check pedal free play and release point after reassembly.
Tested to 2.5 million cycles under dynamic load with zero crack initiation, exceeding ISO 10243 requirements by 40%. Shot peening eliminates stress risers for maximum durability.
Precision‑controlled coiling and heat treatment ensure spring rate remains within ±5% of specification, providing predictable force across the entire operating stroke.
The spring steel contains 40% recycled content. Coiling waste and grinding swarf are collected and returned to steel mills, achieving 96% material utilization.
The manufacturing facility uses 35% renewable energy and closed‑loop cooling, reducing water consumption by 40% compared to industry averages.
Every genuine WG9123470153 compression spring features a laser‑etched batch code on the end coil and a holographic SINOTRUK authenticity sticker on the packaging. Counterfeit springs often omit these identifiers and use inferior materials that can fail suddenly. Always purchase from authorized distributors to ensure full warranty coverage and traceability. Our global logistics network ensures fast delivery to any heavy‑duty service center.
Choosing this genuine compression spring means investing in the reliability and precision of your SINOTRUK Howo. The WG9123470153 eliminates the risk of spring sag, breakage, and inconsistent force that compromise clutch feel, valve timing, and suspension performance. Keep your Howo operating at its peak with components engineered to exact OEM standards.
WG9123470153 – 100% Genuine SINOTRUK Howo Compression Spring • Consistent Force • Uncompromised Reliability.