FAG SS2860 Drive Axle Shaft Seal - Front or Rear

Drive Axle Shaft Seal for OE-Style Wheel End Protection

FAG SS2860 is a drive axle shaft seal built for wheel end sealing performance on select Ford, Lincoln, and Mercury applications. It uses a Viton sealing material with a metal case, spring, and auxiliary lip to help keep contaminants out and retain grease at the bearing.

Compatible With rear and front axle positions on vehicles such as the Ford F-150, Ford Expedition, Lincoln Navigator, and Ford Mustang, this seal is specified for demanding wheel-end service where precise dimensions matter. FAG SS2860 is also referenced by cross numbers including Bosch 18106 and National 100537 for the same application.

Key Features

• Part number: SS2860
• Drive axle shaft seal / wheel seal application
• Seal type: metal case, spring-loaded, auxiliary lip
• Sealing material: Viton
• Bore diameter: 2.878 in. / 73.101 mm
• Seal outside diameter: 2.883 in. / 73.228 mm
• Seal width: 1.811 in. / 45.999 mm
• Engineered for contamination control at the wheel end

Product Details

FAG SS2860 is designed around the dimensional and material requirements of wheel-end sealing systems. The Viton sealing element is paired with a metal shell, spring, and auxiliary lip to support a tight seal at the axle shaft and bearing area. That construction helps reduce the entry of dirt, dust, and moisture while retaining grease where it belongs during normal operation.

This seal is used on a broad range of rear and front applications, including Fits 2009-2018 Ford F-150, front; Fits 2018 Ford Expedition, rear; Fits 2018-2019 Lincoln Navigator, front; and Fits 2019 Lincoln Navigator, rear. It also appears on earlier rear-axle applications such as the Ford Expedition, Lincoln Navigator, Ford Excursion, Ford Explorer, Lincoln Aviator, Mercury Mountaineer, Ford Mustang, Mercury Cougar, Ford Thunderbird, and Lincoln Mark VII. Use the exact vehicle position and seal dimensions to confirm the correct match before service.

Common Problems This Seal Helps Address

• Grease loss at the wheel end
• Dirt, dust, and moisture intrusion around the axle shaft
• Seal leakage at the bearing or hub area
• Contamination-related bearing wear
• Noise or roughness caused by compromised wheel-end lubrication

Installation Notes and Tips

Verify bore diameter, outside diameter, and seal width against the original seal before installation. Clean the bore, shaft surface, and surrounding housing thoroughly so the new seal seats evenly. Inspect the axle shaft and bearing surfaces for wear, scoring, or corrosion, since damaged surfaces can shorten seal life. Confirm whether the vehicle uses a front or rear position application, as listed fitment varies by platform and model year.

Quality Assurance

FAG sources wheel seals with materials selected to meet vehicle manufacturer specifications and designs them to meet FAG quality standards. The seal construction is intended for demanding wheel-end service where contamination control and grease retention are critical.