OEM WG9000360514
Experience fail‑safe parking and emergency braking with the WG9000360514 Spring Energy-Storage Cylinder, a critical safety component engineered for SINOTRUK Howo heavy‑duty trucks. This genuine cylinder is a cornerstone of our premium Sinotruk howo parts portfolio. The WG9000360514 unit combines a powerful compression spring with a pneumatic chamber, providing reliable parking brake force and emergency stopping power, ensuring your vehicle remains secure on any grade.
| Parameter | Specification |
|---|---|
| OEM Number | WG9000360514 |
| Product Name | Spring Energy-Storage Cylinder (Combined Brake Chamber) |
| Type | Spring brake actuator (service + parking) |
| Max Operating Pressure | 8.5 bar |
| Spring Force (nominal) | 6500 N (at full stroke) |
| Stroke | 65 mm |
| Diaphragm Material | NBR / EPDM |
| Temperature Range | -40°C to +80°C |
| Weight | 3.2 kg |
| Compatible Models | Howo A7, T7H, ZZ4257, ZZ1257, HW19710 series |
The energy‑storage cylinder utilizes a heavy‑duty chrome‑silicon spring, precision‑wound and heat‑treated to deliver consistent, reliable force over millions of cycles.
Two independent diaphragms provide a redundant seal, ensuring zero leakage and maintaining brake force even if the primary seal is compromised.
The housing is coated with a durable epoxy paint, resisting road salt, moisture, and abrasion for long‑life performance in harsh environments.
Every cylinder undergoes rigorous pressure and stroke testing, guaranteeing that the WG9000360514 meets all safety and performance standards.
This energy‑storage cylinder is a direct replacement for the following SINOTRUK Howo brake system positions:
The WG9000360514 spring energy‑storage cylinder is a critical safety device that provides both service braking and automatic parking/emergency braking. It combines a conventional service brake chamber with a powerful spring that applies the brakes when air pressure is released. This design ensures that the vehicle remains securely parked even if the air system loses pressure, meeting stringent international safety standards.
The cylinder housing is manufactured from high‑strength stamped steel, welded and powder‑coated for maximum durability. Inside, a precision‑ground chrome‑silicon spring is pre‑loaded to deliver the required force. The spring is shot‑peened to relieve surface stress and increase fatigue life. The diaphragms are made from NBR compound, specially formulated to resist oil and ozone, ensuring long‑term sealing integrity.
During normal driving, air pressure compresses the spring, releasing the brakes. In the event of air pressure loss, the spring expands, applying the brakes automatically. The WG9000360514 is also equipped with a manual release bolt, allowing service personnel to mechanically release the brakes when the vehicle is disabled. This manual release is designed for easy access and requires no special tools.
Installation of this cylinder must be performed by trained technicians. Before removal, ensure the vehicle is securely supported and the air system is fully depressurized. The manual release bolt should be used to cage the spring only as a last resort and never while the vehicle is in motion. Always replace the cylinder as a complete unit; never attempt to disassemble it, as the spring is under extreme compression.
Quality control for the WG9000360514 includes 100% leak testing at multiple pressures, stroke verification, and spring force measurement. Every cylinder is subjected to a proof pressure test at 1.5 times the maximum operating pressure. Samples from each batch are also tested for diaphragm flex life and corrosion resistance. These rigorous checks guarantee that the cylinder will perform reliably in all conditions.
Environmental responsibility is integrated into production. The steel used contains a high percentage of recycled content, and all manufacturing scrap is recycled. The powder coating process is environmentally friendly with low VOC emissions. At the end of its long service life, the cylinder is fully recyclable as scrap steel; the spring can be separated and recycled as well.
For fleet maintenance departments, the WG9000360514 spring energy‑storage cylinder is available individually or as part of a complete rear brake kit that includes new diaphragms and release bolts. Each cylinder is packaged in a heavy‑duty box with foam inserts to protect the mounting threads and manual release mechanism. A certificate of conformance with actual test data is included with every shipment.
Field performance data collected from over 300 heavy‑duty trucks shows that this cylinder has a service life exceeding 700,000 kilometers under normal operating conditions. Its robust construction and redundant sealing significantly reduce the risk of unexpected brake failure, a common issue with inferior aftermarket units.
When ordering, always verify your vehicle’s axle configuration and brake chamber type. The WG9000360514 is specifically designed for Howo rear axles with spring brake chambers. For front axle applications, consult the SINOTRUK parts catalog. Technical support is available through your local dealer – no contact details are listed here, in line with our policy.
In summary, the WG9000360514 spring energy‑storage cylinder represents the highest standard of quality and engineering for SINOTRUK Howo braking systems. Its powerful spring, dual‑diaphragm sealing, and rigorous testing ensure reliable parking and emergency braking for the life of your vehicle. Trust this genuine component to keep your fleet safe and secure.
During routine service, inspect the WG9000360514 cylinder for rust, dents, or signs of leakage. Check the manual release bolt for corrosion. If the cylinder shows any damage, replace it immediately.
Regularly test the parking brake by applying and releasing. The brake should hold the vehicle firmly on a grade. If the brake drags or fails to release, inspect the cylinder and air system.
Only the authentic WG9000360514 cylinder uses the exact spring steel and diaphragm compound specified by SINOTRUK. Imitations often use weaker springs that can sag or diaphragms that crack, leading to sudden brake failure. The genuine cylinder is 100% tested and traceable to an ISO 9001 certified facility. Fleet data shows that OEM cylinders reduce brake‑related failures by 70%.
Preparation: Chock the wheels and release all air pressure from the system. Cage the spring using the manual release bolt only if required by the service manual. Clean the mounting bracket.
Installation: Mount the new WG9000360514 cylinder to the bracket, tighten the nuts to specification. Connect the air line, ensuring the fitting is tight. After installation, restore air pressure and test for leaks.
After installation, perform a full brake system check, including parking brake application and release. Adjust the pushrod length if necessary to achieve correct free play.
The large air inlet ports and optimized internal passages ensure rapid application and release, enhancing braking control.
The spring and diaphragm materials maintain their properties from -40°C to +80°C, ensuring reliable braking in all climates.
Steel contains >85% recycled content; 100% of production scrap is recycled.
At end of life, the cylinder is 100% recyclable, supporting a circular economy.
Every WG9000360514 spring energy‑storage cylinder is laser marked with the part number for full traceability. When you order from our official distribution channel, you receive the latest production with improved diaphragm compound for even longer life.
To verify authenticity, check the smooth epoxy finish and the precise part number stamping. Our global network ensures rapid delivery to any heavy‑duty workshop. Trust this cylinder to keep your Howo brakes fail‑safe – it’s the component that makes the difference between a parked truck and a runaway.
WG9000360514 – 100% Genuine SINOTRUK Howo Spring Energy-Storage Cylinder • Built for the long haul • No forms, just quality parts.
