Timken 313156 Manual Transmission Shift Shaft Seal

Timken 313156 Manual Transmission Shift Shaft Seal

Timken 313156 is a manual transmission shift shaft seal built to help keep lubricant inside the transmission and block dirt and debris from entering the shift shaft area. It is a direct-fit sealing component for select Ford, Jeep, and Mercury manual transmission applications, including Tremec and Warner-equipped vehicles.

Key Features

• Precision sealing design for manual transmission shift shaft service
• Reinforced outer case helps resist installation damage and adds durability
• Ribbed rubber inner diameter seals minor spindle imperfections and promotes positive seating
• Internal contamination exclusion system helps keep debris out of the seal area
• Vent holes allow lubricant flow around the seal lip to reduce heat buildup

Detailed Description

This Timken shift shaft seal is engineered for manual transmission sealing performance where lubricant retention and contamination control matter. It is used in applications such as 1978-1990 Ford Bronco, 1980-1988 Jeep Cherokee with Tremec 176, 177, 178, and 1965-1973 Mercury Colony Park with Tremec 170. The Timken 313156 seal is also listed for other Ford, Jeep, and Mercury manual transmission applications across the 1965-1990 model years.

This part cross-references NGK 5510 for the same application.

What It Helps Address

• Transmission oil seepage at the shift shaft
• Grease loss around the manual shift shaft area
• Contamination entering the seal interface
• Wear-related sealing issues from minor shaft imperfections
• Heat buildup at the seal lip during operation

Installation Notes and Tips

Verify transmission type and application details before installation, especially on Jeep models with Tremec 176, 177, 178 or Ford and Mercury applications with Warner or Tremec units. Inspect the shaft surface for scoring, pitting, or burrs before installing Timken 313156. Clean the sealing bore and shaft area thoroughly so the seal seats evenly and maintains proper contact.

Quality Assurance

Timken oil and grease seals use precision sealing designs and reinforced construction to support reliable service in manual transmission applications.