Timken 342517 Automatic Transmission Manual Shaft Seal

Timken Manual Shaft Seal for Automatic Transmissions

Timken 342517 is an automatic transmission manual shaft seal built with S-Nitrile material for sealing performance at the transmission shaft interface. It is sized for a 1.000 in shaft diameter, 1.312 in housing bore, 1.318 in outside diameter, and 0.126 in width, making it a precise service part for select Ford and Mercury applications.

Compatible With 2001-2004 Ford Escape, 1987-1991 Ford Tempo, 1981-1990 Ford Escort, 1986-1989 Ford Taurus, 1984-1994 Mercury Topaz, 1991-1992 Mercury Sable, 1986 Mercury Sable, 1987-1989 Mercury Tracer, 1981-1987 Mercury Lynx, and 1982-1983 Mercury LN7. Timken 342517 also cross-references Anchor 9818 and Focus Auto Parts 342517 for the same application.

Key Features

• S-Nitrile construction for transmission sealing service
• Precision sealing design helps retain lubricant and block contaminants
• Reinforced outer case helps resist installation damage
• Ribbed rubber inner diameter helps seal minor spindle imperfections
• Internal contamination exclusion system helps reduce debris intrusion
• Vent holes promote lubricant flow around the seal lip to reduce heat build-up
• Timken part number 342517 for direct catalog identification

Detailed Description

This Timken automatic transmission manual shaft seal is engineered to maintain a tight seal at the shaft opening where transmission fluid loss and contamination can lead to drivability and durability concerns. The ribbed inner diameter helps the seal seat against minor shaft imperfections, while the reinforced outer case supports cleaner installation and long-term retention in the housing bore. Timken 342517 is a practical replacement choice for Ford Escape, Ford Escort, Ford Tempo, Ford Taurus, and multiple Mercury applications that require this seal size and profile.

With its contamination exclusion features and vented design, this seal is built to support stable lubrication around the lip area and reduce heat accumulation during operation. For technicians and DIY repairs, Timken 342517 provides a direct-fit service part for automatic transmission manual shaft sealing needs on select Ford and Mercury vehicles.

Common Problems This Seal Can Address

• Transmission fluid leakage at the manual shaft seal area
• Contamination entering the transmission through a worn seal opening
• Seal damage caused by installation stress or housing wear
• Poor sealing on shafts with minor surface imperfections
• Heat-related seal deterioration around the lip area

Installation Notes and Tips

Inspect the shaft surface and housing bore before installation to confirm they are clean and free of burrs or scoring. Verify dimensions against the original seal and confirm vehicle application by year, make, and model before service. Proper seating in the bore is important for sealing performance, especially on Ford Escape, Ford Escort, and Mercury Topaz applications where transmission sealing integrity is critical.

Quality Assurance

Timken manufactures oil and grease seals with precision sealing designs and durability-focused construction. Part number 342517 is built to meet the dimensional and material requirements listed above for the specified applications.