Autopart International 1776-321717 Differential Pinion Seal

The Autopart International 1776-321717 is a differential pinion seal designed to prevent gear oil leakage from the differential housing where the pinion shaft exits. This seal creates a critical barrier between the rotating pinion shaft and the differential housing, maintaining proper lubrication levels and protecting internal components.

Key Features:

• Manufactured to meet or exceed OEM specifications for reliable sealing performance
• Application-specific material construction ensures proper compatibility with differential fluids
• Precision-molded design for exact fit and optimal sealing at the pinion shaft interface
• Helps prevent costly differential damage caused by low fluid levels
• Direct replacement for worn or leaking factory pinion seals

Pinion seals are critical wear items that should be replaced whenever differential service is performed or when leaks are detected. A failing pinion seal can lead to differential fluid loss, resulting in inadequate lubrication and potential gear damage.