MAHLE Original Clevite SS45921 Valve Stem Seal Set for Chevrolet LS Engines

The MAHLE Original Clevite SS45921 valve stem seal set is designed for Chevrolet LS engines from 1999 to 2014. This set includes eight high-quality oil seals crafted with Viton rubber, offering excellent resistance to heat, oil, and chemicals. The positive stop feature ensures proper seating and prevents oil leakage, contributing to optimal engine performance and longevity. The seals have a 0.275-inch valve stem diameter and fit guides with a 0.490-inch outer diameter, making them suitable for a range of LS engine applications. Each seal is engineered to provide a tight seal around the valve stem, reducing oil consumption and preventing oil from entering the combustion chamber, which can improve engine efficiency and reduce emissions. These valve stem seals are essential components for engine rebuilds, repairs, or routine maintenance to ensure smooth engine operation and prevent oil-related issues. The set comes in a convenient package of eight, suitable for complete cylinder head servicing or replacements in multiple cylinders. Durable and reliable, these seals meet or exceed OEM specifications for quality and performance, making them a trusted choice for professional mechanics and automotive enthusiasts alike.

Features:

• Designed for Chevrolet LS engines from 1999 to 2014

• Set of eight high-quality Viton rubber valve stem seals

• Positive stop feature ensures proper seating and prevents oil leaks

• Fit valve stems with 0.275-inch diameter and guide OD of 0.490 inches

• Resistant to heat, oil, and chemicals for durability

• Reduces oil consumption and prevents oil entering combustion chamber

• Suitable for engine rebuilds, repairs, or routine maintenance

• Meets or exceeds OEM quality standards