Timken 221607 Manual Transmission Shift Shaft Seal

Timken 221607 Manual Transmission Shift Shaft Seal

The Timken 221607 manual transmission shift shaft seal is built to retain lubricant at the shift shaft while keeping dirt and debris out of the transmission. It is a direct-fit sealing component for select Honda and Acura manual transmission applications, including Honda Accord, Civic, Prelude, Civic del Sol, and Acura CL models.

Key Features

• Precision sealing design helps control oil and grease leakage at the shift shaft
• Reinforced outer case helps resist installation damage and supports long-term durability
• Ribbed rubber inner diameter helps seal minor shaft imperfections and promotes secure seating
• Internal contamination exclusion system helps block debris that can contribute to leakage
• Vent holes allow lubricant flow around the seal lip to reduce heat buildup
• N-Polyacrylate construction for transmission sealing service
• Timken 221607 cross-references National 221607, SKF 553104, and AMS Automotive 6404 for the same application

Detailed Description

Timken 221607 is a manual transmission shift shaft seal engineered for consistent sealing performance in manual gearbox service. Its 1.071 in. outside diameter, 1.063 in. housing bore, 0.630 in. shaft diameter, and 0.551 in. width are designed for the specified fitment, while the ribbed inner diameter helps the seal conform to minor shaft wear. This makes it a practical replacement for vehicles that need reliable lubricant retention and contamination control, including Honda Accord, Honda Civic, and Honda Prelude applications.

Compatible With 1976-2002 Honda Accord, 1988-1999 Honda Civic, 1979-1999 Honda Prelude, 1993-1997 Honda Civic del Sol, and 1997-1999 Acura CL manual transmission applications, Timken 221607 supports proper shift shaft sealing where leakage or contamination can affect transmission operation. The part number 221607 is commonly searched by drivers and technicians servicing these Honda and Acura manual transmission platforms.

What It Helps Address

• Transmission fluid seepage around the shift shaft
• Contamination entering the manual transmission through a worn seal
• Seal leakage caused by minor shaft surface imperfections
• Heat-related seal wear from poor lubricant circulation at the lip
• Repeat service issues from a damaged or hardened shift shaft seal

Installation Notes and Tips

Inspect the shaft and housing bore before installation to confirm they are clean and free of burrs or scoring. Lightly lubricate the seal lip with the correct transmission lubricant during installation, and press the seal in evenly to avoid distortion. Verify the seal seats fully in the bore and check for leaks after reassembly. For fitment verification, confirm the vehicle year, make, and model against the listed applications before ordering Timken 221607.

Quality Assurance

Timken manufactures oil and grease seals with precision sealing features intended for dependable service in drivetrain applications. The reinforced case, contamination exclusion design, and vented lip construction reflect the brand’s focus on sealing durability and lubricant control in manual transmission use.