USA Standard Gear ZMM5R1-167 Manual Transmission MR5 Countershaft Nut for Ford/Mazda

The USA Standard Gear ZMM5R1-167 is a precision-engineered countershaft nut designed specifically for MR5 manual transmissions found in Ford and Mazda vehicles. This OEM-quality replacement component ensures proper torque retention and secure positioning of the countershaft assembly within the transmission case.

Key Features:

• Direct replacement for worn or damaged countershaft nuts in MR5 transmissions
• Manufactured to meet or exceed OEM specifications for fit and durability
• Heat-treated steel construction for maximum strength and reliability
• Precision-threaded design ensures proper engagement and torque retention
• Essential component for transmission rebuilds and overhauls

USA Standard Gear manufactures high-quality drivetrain components that provide reliable performance and long service life. This countershaft nut is a critical fastener that secures the countershaft in place, preventing movement that could lead to transmission damage or failure. Proper installation with correct torque specifications is essential for optimal transmission performance.