ACDelco Automatic Transmission Case Extension Seal

The ACDelco Automatic Transmission Case Extension Seal, also called a transmission extension housing seal, tail housing seal or rear output shaft seal, helps keep transmission fluid inside the transmission case where the output shaft or driveshaft yoke exits the extension housing. A good seal also helps keep dirt and contaminants out of the transmission.

Key Features:

• Designed to seal the automatic transmission extension housing around the output shaft or driveshaft yoke
• Helps prevent transmission fluid leaks at the rear of the transmission
• Helps protect internal transmission components from road debris and contamination
• Made to meet ACDelco's quality standards for dependable sealing and durability
• Replacement-grade design for restoring the original sealing performance of the transmission

ACDelco is General Motors' original equipment parts brand. It supplies a wide range of drivetrain, engine and chassis components. Replacing a worn or leaking extension seal helps maintain proper fluid levels and supports reliable transmission operation.