Genuine HOWO Parts - VG1246050064 High-Resilience Exhaust Valve Spring for Sinotruk WD615 Engine

In a high-pressure diesel engine, the valve spring is the unsung hero of the timing system. The VG1246050064 Exhaust Valve Spring is engineered specifically for the Sinotruk HOWO WD615 and D12 engine series. Its primary role is to provide the necessary tension to close the exhaust valve rapidly, preventing "valve bounce" or float at high RPMs.

As a specialized supplier of HOWO parts, we provide only genuine springs made from high-fatigue resistant alloy steel. These springs undergo rigorous shot-peening treatments to enhance their surface strength and ensure they can withstand the extreme thermal cycles of a heavy-duty combustion chamber without losing their spring rate.

Technical Specifications

Why "Genuine" Matters for Valve Springs?

1. Fatigue Life: Aftermarket springs often use inferior wire that loses tension after 50,000 km, leading to power loss or engine misfire. Our HOWO parts are tested for over 10 million cycles.

2. Heat Resistance: The VG1246050064 maintains its structural integrity even when exposed to the high temperatures of the exhaust port area.

3. Perfect Timing: A weak spring causes late valve closure. Using the original VG1246050064 ensures your engine's volumetric efficiency remains at factory-new levels.

4. Pro Tip: When replacing the VG1246050064 spring, we highly recommend checking the valve stem seal (VG1500050025) and the valve seat for wear. Replacing these as a set prevents blue smoke and oil consumption issues