Rear Wheel Seal for Ford and Mercury Axles

Timken 6939 is a rear wheel seal built for classic Ford and Mercury driveline applications. It is engineered to retain lubricant at the wheel end while helping keep dirt and debris out of the axle assembly.

• Precision sealing design helps control oil and grease leakage
• Reinforced outer case resists installation damage and adds durability
• Ribbed rubber inner diameter helps seal minor spindle imperfections
• Internal contamination exclusion system helps block debris entry
• Vent holes promote lubricant flow around the seal lip to reduce heat buildup

Fitment Details

• Fits 1969 Ford E-100 Econoline, rear, 2,700 lb. axle
• Fits 1969 Ford E-100 Econoline, rear, 3,050 lb. axle
• Fits 1966-1968 Ford Bronco, rear, 2,780 lb. axle
• Fits 1963-1967 Ford Econoline, rear, 2,700 lb. axle
• Fits 1963-1967 Ford Econoline, rear, 3,050 lb. axle
• Fits 1967 Ford LTD, rear, WDC CB axle
• Fits 1965 Mercury Colony Park, rear, WDD D1 axle
• Fits 1965 Mercury Marauder, rear, WDD D1 axle
• Fits 1961-1963 Mercury Colony Park, rear, standard axle
• Fits 1963 Mercury Marauder, rear, standard axle
• Fits 1961 Ford Thunderbird, rear, large bearing
• Fits 1961 Ford Thunderbird, rear, small bearing

What This Seal Helps Address

• Rear axle lubricant seepage at the wheel end
• Contamination entering the seal area
• Seal wear caused by heat buildup
• Minor spindle surface irregularities that can affect sealing
• Damage during seal installation

Installation Notes and Tips

Verify axle type, bearing size, and rear position before installation. Clean the spindle or axle surface thoroughly and inspect for grooves, corrosion, or other wear that could affect sealing performance. Timken 6939 is a direct-fit rear wheel seal for the listed Ford and Mercury applications, including Ford Bronco rear axle service and Ford Econoline rear axle service.

Quality Assurance

Timken designs oil and grease seals with precision sealing features, contamination control, and durability-focused construction for dependable axle service. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.