4RJ39R
Manual Transmission Gear Selector Bushing
Mack

This bushing is a critical component for the smooth operation of the gear selector in manual transmissions. It reduces friction and wear between moving parts, ensuring precise gear engagement and smooth shifting. Properly functioning bushings help prevent gear slippage and excessive play, contributing to overall transmission reliability. Made from durable materials, it withstands the stresses of heavy-duty use and temperature variations. Easy to replace, this bushing is essential for maintaining optimal transmission performance. Source One Parts Center supplies high-quality bushings designed to meet or exceed OEM specifications, supporting long-term vehicle operation.