FAG SS3964 Wheel Seal - Rear Outer

FAG SS3964 Wheel Seal Overview

The FAG SS3964 wheel seal is built for wheel end sealing where contamination control and grease retention matter. With a nitrile sealing material and rubber spring design, it is specified for a 100 mm bore and a 100.203 mm outside diameter to support a precise wheel seal application.

For drivers searching for a wheel seal for FAG SS3964, or a direct replacement wheel seal for Davico Mfg 19333, this part is engineered to meet vehicle manufacturer specifications and the demands of the wheel end environment.

Key Features

• Part number: SS3964
• Wheel seal construction with rubber and spring sealing elements
• Nitrile sealing material for wheel end sealing performance
• Bore diameter: 100 mm (3.937 in.)
• Seal outside diameter: 100.203 mm (3.945 in.)
• Seal width: 48.997 mm (1.929 in.)
• Designed to help keep dirt, dust, and moisture out of the wheel end
• Helps retain grease over bearing service life

Detailed Description

FAG SS3964 is a wheel seal for driveline and axle sealing applications where the seal must match the vehicle’s wheel end dimensions closely. The nitrile sealing material and spring-loaded rubber design are selected to support sealing contact at the hub, helping protect wheel end components from contamination while maintaining grease inside the bearing assembly. This part number SS3964 is built around a 100 mm bore and a 100.203 mm outside diameter, making dimensional accuracy a key part of the application match.

This part cross-references Davico Mfg 19333 for the same application. If you are sourcing a wheel seal for FAG SS3964 or comparing replacement options for Davico Mfg 19333, verify the wheel end dimensions and vehicle requirements before installation.

What It Helps Address

• Grease loss at the wheel end
• Dirt and dust intrusion into the hub area
• Moisture entering the bearing/seal interface
• Premature wear from contaminated wheel end components
• Seal mismatch caused by incorrect bore or outside diameter

Installation Notes and Tips

Confirm bore diameter, seal outside diameter, and seal width against the original seal before installation. Inspect the hub, spindle, and bearing surfaces for wear, scoring, or contamination, since seal performance depends on a clean and properly prepared sealing surface. Use the correct installation method for the wheel end design to avoid damaging the sealing lip or spring.

Compatible With wheel-end applications requiring a 100 mm bore and 100.203 mm outside diameter. For fitment-based searches, use the vehicle’s exact axle and hub specifications rather than year alone. If you are looking up FAG SS3964 for a specific make and model, confirm the original seal dimensions before ordering.

Quality Assurance

FAG designs wheel seals to meet vehicle manufacturer specifications and works with suppliers to maintain its quality standards. The seal specification is built for demanding wheel end service, where contamination control and grease retention are critical to bearing life.