USA Standard Gear ZMBK267 Manual Transmission Bearing and Seal Rebuild Kit - SM420 4-Speed

The USA Standard Gear ZMBK267 is a comprehensive bearing and seal overhaul kit designed for SM420 4-speed manual transmissions. This complete rebuild kit contains all the essential bearings and seals needed to restore proper function and reliability to your transmission during a rebuild or overhaul.

Key Specifications:

• Designed for SM420 4-speed manual transmissions
• Fits transmissions with 10.5-inch long main case
• Compatible with main case casting numbers 3761930 and 3813389
• For transmissions with PTO opening on the driver side only
• Includes complete bearing and seal set for comprehensive rebuild

USA Standard Gear manufactures a full line of top-quality transmission components backed by decades of drivetrain expertise. Their extensive inventory covers over 50 years of applications, from classic vehicles of the 1960s through current model year applications. Each kit is designed to meet or exceed OEM specifications, providing reliable performance at an affordable price point.

This kit is sold complete with all necessary bearings and seals for a thorough transmission overhaul, eliminating the need to source individual components separately.