FAG SS4981 Differential Seal - Rear

Rear Differential Seal for Lexus and Toyota

FAG SS4981 is a rear differential seal built for specific Lexus and Toyota applications. It uses a rubber seal design with a spring and auxiliary lip to help retain lubricant and block contamination at the wheel end or differential sealing point.

Key Features

• Part number: FAG SS4981
• Seal type: rubber, spring, auxiliary lip
• Sealing material: polyacrylate
• Bore diameter: 2.835 in. / 72.009 mm
• Seal outside diameter: 2.852 in. / 72.441 mm
• Seal width: 1.85 in. / 46.99 mm
• Built to help keep dirt, dust, and moisture out of the sealing area
• Helps retain grease over the service life of the bearing

Detailed Description

FAG SS4981 is engineered to meet vehicle-specific sealing requirements for rear applications on Lexus GS300, GS400, GS430, LS400, LS430, SC300, SC400, SC430, and Toyota Supra models. The polyacrylate sealing material and multi-lip construction are selected to support consistent sealing performance where rotating components need protection from contamination and lubricant loss. This part cross-references Gates 18513 for the same application.

Compatible With 1993-2003 Lexus GS300, rear; 1998-2000 Lexus GS400, rear; 2001-2003 Lexus GS430, rear; 1998-2000 Lexus LS400, rear; 2001-2003 Lexus LS430, rear; 1992-2000 Lexus SC300, rear; 1992-2000 Lexus SC400, rear; 2002-2003 Lexus SC430, rear; 1993-1997 Toyota Supra, rear. FAG SS4981 is also referenced under Schaeffler global number 413 4981 100.

What It Helps Address

• Gear oil seepage at the rear sealing point
• Contamination from dirt, dust, and road moisture
• Grease loss around the bearing or axle seal area
• Wear caused by degraded or hardened sealing surfaces
• Noisy or rough operation related to lubricant loss

Installation Notes and Tips

Verify bore diameter, outside diameter, and seal width before installation. Inspect the shaft, hub, or housing surface for scoring, corrosion, or wear that could affect sealing performance. Clean the sealing bore thoroughly and install the seal squarely to avoid distortion of the lip or spring.

Quality Assurance

FAG designs seals to meet vehicle manufacturer specifications and works with suppliers to maintain FAG quality standards. The SS4981 is built for demanding wheel-end and driveline sealing applications where precise dimensions and reliable contamination control matter.