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Ensure Leak-Free Performance with the Genuine WG2210040021 Main Shaft Gasket
The WG2210040021 Main Shaft Gasket is a critical component for maintaining the internal pressure and lubricant integrity of your Sinotruk HOWO transmission.
Unlike generic aftermarket alternatives, our genuine Sinotruk HOWO parts are manufactured using high-fatigue-resistant composite materials. This gasket is specifically engineered to withstand the extreme thermal expansion and mechanical vibrations common in HW series gearboxes (such as HW19710 and HW19712). Whether you are performing a routine overhaul or fixing an emergency leak, using an OEM-spec gasket ensures a precision fit and long-term reliability.
Technical Specifications:
Part Number: WG2210040021
Component Type: Gearbox Main Shaft / Output Shaft Gasket
Compatibility: Sinotruk HOWO, HOWO A7, T7H Series (HW Transmission Systems)
Thickness: Precision-calibrated for exact clearance
Weight: 0.05 kg
Heat Resistance: Up to 180°C (356°F)
Oil Resistance: Compatible with heavy-duty GL-5 gear oils
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A successful gearbox repair depends as much on the installation process as it does on the quality of the part. Here is what our technicians recommend for the WG2210040021:
Surface Preparation: Ensure the gearbox housing and the main shaft bearing cover surfaces are perfectly clean. Any residual old gasket material or grit will cause a micro-leak.
No Excessive Sealant: While some mechanics use RTV silicone, we recommend a very thin layer or installing it dry if the surfaces are pristine. Excessive sealant can squeeze into the oil passages.
Check for Scoring: Before fitting the new gasket, inspect the main shaft and bearing seat for any scoring or burrs. A smooth surface is essential for the gasket to create a hermetic seal.
Torque Sequence: Always use a cross-pattern torque sequence when tightening the bolts on the shaft cover to ensure even pressure distribution across the gasket surface.
