ACDelco 12678978 Timing Chain Tensioner Gasket

The ACDelco 12678978 Timing Chain Tensioner Gasket is a GM Original Equipment component designed to provide a reliable seal for the timing chain tensioner assembly. This precision-engineered gasket ensures proper sealing to maintain optimal oil pressure to the tensioner, which keeps the engine timing chain at the correct tension for long-lasting performance.

Key Features:

• GM Original Equipment quality - designed, engineered, and tested to rigorous General Motors standards
• Constructed from durable steel material for reliable sealing performance
• Precision thickness of 0.010 inch (0.28mm) for proper fit and function
• Direct replacement for original equipment gasket
• Helps prevent oil leaks from the timing chain tensioner

This gasket is a critical component during timing chain tensioner service or replacement. Using genuine ACDelco parts ensures proper fit and performance, maintaining the same quality you expect from General Motors vehicles. Replace this gasket whenever servicing the timing chain tensioner to prevent oil seepage and ensure proper tensioner operation.