Timken 2655 Automatic Transmission Extension Housing Seal - Rear

Automatic Transmission Extension Housing Seal

Timken 2655 is an automatic transmission extension housing seal built for rear transmission sealing on a range of Ford, Mazda, and Mercury applications. It uses a precision sealing design to help keep lubricant in place while blocking dirt and debris from entering the transmission tail housing area.

• Precision seal profile for controlled lubricant retention
• Reinforced outer case helps resist installation damage
• Ribbed rubber inner diameter helps seal minor shaft imperfections
• Internal contamination exclusion system helps reduce debris intrusion
• Vent holes promote lubricant flow around the seal lip to manage heat
• N-Polyacrylate material for transmission sealing service
• Helix type: CCW-Counter Clock Wise
• Dimensions: 2.250 in. outside diameter, 1.374 in. shaft diameter, 0.374 in. width

Fitment and Application Details

This Timken 2655 extension housing seal is used in rear transmission applications on vehicles such as the Ford Ranger, Ford Explorer, Mazda B4000, and Ford Aerostar. It also cross-references Bosch 13685 for the same application.

• Fits 2005-2007 Ford Ranger, N/A
• Fits 1983-2003 Ford Ranger, N/A
• Fits 1997-1999 Ford Explorer, Rear, 5R44E, 5R55E
• Fits 1997-1999 Ford Ranger, Rear, 5R44E, 5R55E
• Fits 1998-1999 Mazda B2500, N/A, 4R44E, A4LD
• Fits 1998-1999 Mazda B3000, N/A, 4R44E, A4LD
• Fits 1994-1996 Mazda B3000, N/A, 4R44E, A4LD
• Fits 1997-1999 Mazda B4000, Rear
• Fits 1986-1997 Ford Aerostar, N/A
• Fits 1997 Ford Aerostar, Rear, 5R44E, 5R55E
• Fits 1994-1997 Mazda B2300, N/A, 4R44E, A4LD
• Fits 1991-1996 Ford Explorer, N/A
• Fits 1980-1993 Ford Mustang, N/A
• Fits 1985-1990 Ford Bronco II, N/A
• Fits 1987-1988 Ford Thunderbird, N/A, A4LD
• Fits 1984-1986 Ford Thunderbird, N/A
• Fits 1981 Ford Thunderbird, N/A
• Fits 1978-1983 Ford Fairmont, N/A
• Fits 1980-1983 Mercury Zephyr, N/A
• Fits 1981 Mercury Cougar, N/A
• Fits 1978-1980 Ford Pinto, N/A

What This Seal Helps Address

• Transmission fluid seepage at the extension housing
• Contamination entering the tail housing area
• Seal wear caused by minor shaft surface imperfections
• Heat-related seal deterioration from poor lubricant circulation
• Leak concerns during rear transmission service on Ford Ranger and Ford Explorer applications

Installation Notes

Inspect the shaft and housing bore before installation and clean all sealing surfaces thoroughly. Confirm the seal orientation and helix direction match the transmission application, especially on Ford Ranger, Ford Explorer, and Mazda B-series rear service jobs. Use proper seal installation tools to avoid distorting the outer case or damaging the sealing lip.

Quality Assurance

Timken designs its oil and grease seals with reinforced construction, contamination exclusion features, and venting details that support consistent sealing performance in transmission service. Part number 2655 is built to the listed dimensions and application requirements for the vehicles shown above.