FAG SS5951 Engine Timing Cover Seal

Engine Seal for Select Ford, Mercury, Dodge, and Mitsubishi

FAG SS5951 is an engine sealing component built with nitrile sealing material and a metal spring design with an auxiliary lip. It is specified with a 2.374 in bore diameter, 2.378 in outside diameter, and 1.75 in width for applications that require precise sealing dimensions. This FAG SS5951 seal is listed for select Ford Mustang, Ford Bronco, Mercury Capri, and Mitsubishi Outlander applications, along with additional covered vehicles.

Key Features

• Part number: SS5951
• Seal type: metal, spring, auxiliary lip
• Sealing material: nitrile
• Bore diameter: 2.374 in / 60.3 mm
• Outside diameter: 2.378 in / 60.401 mm
• Width: 1.75 in / 44.45 mm
• Engineered for sealing performance where contamination control and grease retention are critical

Detailed Description

FAG SS5951 is a precision seal designed around demanding dimensional requirements for engine sealing applications. Its nitrile construction and spring-loaded, auxiliary-lip profile help maintain sealing contact while supporting protection against dirt, dust, and moisture intrusion. The listed dimensions make it important to verify bore, outside diameter, and width before installation, especially on older Ford, Mercury, and Dodge platforms where application details vary by engine and position. This part cross-references SKF 17271 for the same application.

What This Seal Helps Address

• Oil leakage at the sealing interface
• Contamination entering the sealed area
• Grease loss from the bearing or end component
• Wear caused by moisture, dust, and road debris
• Fitment issues when the correct seal dimensions are required

Installation Notes and Fitment Tips

• Fits 2003-2005 Mitsubishi Outlander, N/A
• Fits 1978-1983 Ford Fairmont, N/A
• Fits 1983 Ford LTD, N/A
• Fits 1983 Mercury Marquis, N/A
• Fits 1978-1983 Mercury Zephyr, N/A
• Fits 1978-1982 Dodge Colt, N/A
• Fits 1979-1982 Ford Mustang, N/A
• Fits 1980-1982 Ford Thunderbird, N/A
• Fits 1980-1982 Mercury Capri, N/A
• Fits 1980-1982 Mercury Cougar, N/A
• Fits 1979 Mercury Capri, Front
• Fits 1966-1967 Mercury Capri, Front
• Fits 1976-1977 Dodge Colt, N/A, w/ Balance Sh.
• Fits 1975-1977 Mercury Monarch, N/A
• Fits 1967-1974 Ford Bronco, N/A, 170 (2.8L), 200 (3.3L) Engs.
• Fits 1969-1971 Ford E-100 Econoline, Front
• Fits 1964-1970 Ford Mustang, N/A, 170 (2.8L), 200 (3.3L) Engs.
• Fits 1968 Mercury Montego, Front
• Fits 1961-1967 Ford Econoline, N/A, 144 (2.4L), 170 (2.8L) Engs.
• Fits 1962-1967 Mercury Villager, Front
• Fits 1966 Ford Bronco, Front

Confirm the seal dimensions and application notes against the vehicle service information before installation. The listed fitment includes front and non-position-specific applications, so matching the correct location is important for proper sealing performance.

Quality Assurance

FAG specifies this seal using vehicle-focused dimensional requirements and material selection intended to meet manufacturer-level application needs. The design emphasizes contamination protection and grease retention over the service life of the bearing or sealed component.