Timken 3794 Wheel Seal - Front, Front Inner or Rear Outer

Timken 3794 Wheel Seal for Driveline Applications

Timken 3794 is a wheel seal built for driveline and axle sealing applications where lubricant retention and contamination control matter. It is engineered for select Mercedes-Benz and Mercury applications, including front and rear output locations listed below.

Key Features

• Precision sealing design helps keep oil and grease inside the assembly while blocking dirt and debris.
• Reinforced outer case resists installation damage and adds durability during service.
• Ribbed rubber inner diameter seals minor spindle imperfections and supports positive spindle seating.
• Internal contamination exclusion system helps reduce debris intrusion that can lead to leakage.
• Vent holes promote lubricant flow around the seal lip to help carry heat away from the sealing surface.

Detailed Description

Built for axle and wheel-end sealing service, Timken 3794 is a direct-fit wheel seal for 1990-1991 Mercedes-Benz 350SDL front applications, 1986-1991 Mercedes-Benz 420SEL front inner applications, and 1977-1979 Mercury Cougar rear outer applications with the noted transfer case output shaft bearing and 9-inch ring gear configuration. This part cross-references Gates 19773 and CSF 3794 for the same application. If you are replacing a leaking Mercedes-Benz 350SDL wheel seal or servicing a Mercedes-Benz 420SEL front inner seal, this Timken seal is made to maintain lubricant control and help protect the bearing area from contamination.

What It Helps Address

• Gear oil or grease leakage at the wheel-end seal area
• Contamination entering the spindle or bearing cavity
• Seal damage caused by minor spindle surface imperfections
• Heat buildup around the seal lip during operation
• Poor seal seating during axle or hub service

Installation Notes and Tips

Inspect the spindle, hub, and bearing surfaces before installation. Clean the sealing area thoroughly and verify the seal is seated squarely to avoid lip distortion. Confirm the application by year, make, model, and position before ordering, especially for Mercedes-Benz 420SEL front inner and Mercury Cougar rear outer configurations.

Quality Assurance

Timken sealing components are built with precision sealing geometry and durable construction for service in driveline and axle applications. Timken 3794 is designed to meet the demands of wheel-end sealing where lubricant retention and contamination exclusion are critical.