Genuine HOWO Parts - VG1246050167 Valve Rod Sealing Sleeve (Valve Stem Seal) for Sinotruk WD615 & D12 Engines

In heavy-duty diesel engines, the valve stem seal is a small component that solves a massive problem: excessive oil consumption. The VG1246050167 Valve Rod Sealing Sleeve is the OEM-standard seal for Sinotruk HOWO trucks. It is specifically designed to sit atop the valve guide, ensuring that lubricant stays on the rocker arm side and doesn't leak into the combustion chamber.

As a dedicated supplier of HOWO parts, we provide this sealing sleeve made of high-grade Fluororubber (FKM). This material is essential for modern WD615 and D12 engines as it maintains its elasticity even under the extreme thermal cycles common in long-haul trucking. Replacing worn seals with the original VG1246050167 can prevent "blue smoke" at startup and protect your turbocharger from oil fouling.

Technical Specifications

Why "Genuine" Matters for VG1246050167?

1. High-Temp Stability: Substandard aftermarket seals often harden and crack within months due to engine heat. Our HOWO parts use FKM to ensure a service life that matches your engine overhaul cycle.

2. Oil Resistance: Engineered to resist the chemical additives found in synthetic heavy-duty engine oils.

3. Perfect Lip Tension: The internal spring-loaded lip provides consistent pressure, ensuring a dry valve stem even after thousands of hours of operation.

Often ordered with VG1246050064 Valve Springs and VG1500050025 Valve Guides for a complete cylinder head refresh