Eastern Motorcycle Parts A-35150-52 Mainshaft Retainer with Oil Seal

The Eastern Motorcycle Parts A-35150-52 is a mainshaft retainer assembly that includes an integrated oil seal for Harley-Davidson transmissions. This component serves as a critical seal and retention system for the transmission mainshaft, preventing oil leakage while maintaining proper bearing alignment and mainshaft positioning.

Key Features:

• Complete retainer assembly with pre-installed oil seal for convenient installation
• Direct OEM replacement for Harley-Davidson part number 35150-52
• Precision-manufactured to meet or exceed original equipment specifications
• Designed to prevent transmission oil leaks at the mainshaft
• Sold individually

This mainshaft retainer is commonly used in vintage Harley-Davidson 4-speed transmissions and is essential for maintaining proper transmission function and preventing oil loss. The integrated oil seal design eliminates the need to purchase and install a separate seal, simplifying the installation process during transmission rebuilds or mainshaft service.