FAG SS3374 Wheel Seal - Rear

FAG SS3374 Wheel Seal for Rear Axle Service

The FAG SS3374 wheel seal is built for rear wheel-end sealing where contamination control and grease retention matter. It is a direct-fit style seal for select Ford F-350 Super Duty applications and is engineered to meet vehicle-specific requirements for the wheel end.

Fits 2005-2008 Ford F-350 Super Duty, rear, with dual rear wheels.

Key Features

• Wheel seal for rear wheel-end service
• Viton sealing material for demanding sealing conditions
• Seal type: rubber, spring, auxiliary lip, and inner shell
• Bore diameter: 118.923 mm / 4.682 in
• Seal outside diameter: 119.101 mm / 4.689 in
• Seal width: 11.455 mm / 3.5 in
• Fits select 2005-2008 Ford F-350 Super Duty rear applications

Detailed Description

FAG SS3374 is a rear wheel seal designed to protect wheel-end components from dirt, dust, and moisture while helping retain grease at the bearing. The seal uses Viton sealing material and a multi-element design with a rubber body, spring, auxiliary lip, and inner shell to support consistent sealing performance in demanding axle and hub environments. This part number, SS3374, is listed for 2005-2008 Ford F-350 Super Duty rear applications with dual rear wheels, and it also cross-references National 710454 for the same application.

For buyers searching for a rear wheel seal for 2005-2008 Ford F-350 Super Duty dual rear wheel service, FAG SS3374 provides the dimensional and application-specific details needed for a proper match. The listed bore diameter, outside diameter, and width should be verified against the original seal and hub specifications before installation.

Common Problems This Seal Addresses

• Grease loss at the wheel bearing area
• Contamination from road dirt and dust
• Moisture intrusion at the wheel end
• Seal wear from rear axle and hub operation
• Service replacement for a leaking or damaged rear wheel seal

Installation Notes and Tips

Confirm the vehicle is a 2005-2008 Ford F-350 Super Duty with dual rear wheels and rear-wheel seal application before ordering. Inspect the hub, spindle, and bearing surfaces for wear or scoring before installing the new seal. Clean the sealing area thoroughly and compare the original seal dimensions to the listed bore diameter, outside diameter, and width to ensure correct fitment. Proper seating is important to maintain sealing performance.

Quality Assurance

FAG designs wheel seals to meet vehicle manufacturer specifications and works with suppliers to maintain FAG quality standards. The SS3374 is engineered for wheel-end contamination control and grease retention in the specified rear application.