ACDelco 87861098 Differential Drive Pinion Seal

The ACDelco 87861098 is a GM Original Equipment differential drive pinion gear seal designed to prevent fluid leakage from the differential housing. This seal creates a critical barrier between the rotating pinion shaft and the differential case, keeping gear oil contained within the axle assembly while preventing contaminants from entering.

Key Features:

• GM Original Equipment quality ensuring precise fitment and durability
• Engineered to withstand high rotational speeds and temperature extremes
• Prevents differential fluid leakage and protects internal components
• Direct replacement for worn or damaged original seals
• Manufactured to strict OEM specifications for reliable performance

This seal is a critical maintenance component during differential service, pinion bearing replacement, or when addressing gear oil leaks. Proper installation ensures optimal differential performance and extends the service life of axle components.