FAG SS5931 Drive Axle Shaft Seal - Front

FAG SS5931 Drive Axle Shaft Seal

The FAG SS5931 drive axle shaft seal is built for front wheel-end service where contamination control and grease retention matter. It is a direct-fit sealing component for 1999-2004 Ford F-250 Super Duty and 1999-2004 Ford F-350 Super Duty front applications.

Key Features

• Sealing material: O-ring
• Bore diameter: 3.34 in. (84.836 mm)
• Engineered to help keep dirt, dust, and moisture out of the wheel end
• Helps retain grease over the service life of the bearing
• Built to FAG quality standards for vehicle-specific sealing applications
• Fits 1999-2004 Ford F-250 Super Duty, front
• Fits 1999-2004 Ford F-350 Super Duty, front

Detailed Description

FAG SS5931 is a drive axle shaft seal designed for front wheel-end use on Ford Super Duty trucks. The seal uses an O-ring sealing material and a 3.34-inch bore diameter, making it a precise service part for applications that require controlled sealing at the axle shaft and bearing area. For 1999-2004 Ford F-250 Super Duty and 1999-2004 Ford F-350 Super Duty front service, this seal helps maintain the protective barrier around critical driveline components.

This part cross-references SKF 4C3Z1 for the same application.

What It Helps Address

• Grease loss at the wheel end
• Contamination from dirt, dust, and moisture
• Seal wear at the front axle shaft area
• Noise or roughness related to compromised wheel-end sealing
• Service replacement for worn axle shaft seal components

Installation Notes and Tips

Verify bore diameter and front-position fitment before installation. Inspect the axle shaft, hub, and bearing surfaces for wear or damage, since a new seal performs best on clean, smooth mating surfaces. Confirm the vehicle application by year, make, model, and front position for 1999-2004 Ford F-250 Super Duty and 1999-2004 Ford F-350 Super Duty service.

Quality Assurance

FAG designs wheel seals to meet vehicle manufacturer specifications and works with suppliers to maintain its quality standards for sealing performance in demanding wheel-end applications.