SKF 18513 Differential Seal - Rear

SKF 18513 Differential Seal for Rear Axles

SKF 18513 is a rear differential seal engineered for select Lexus and Toyota applications that need reliable lubricant retention at the axle housing. Built with a polyacrylate sealing surface and precise dimensional sizing, it helps maintain a clean, stable sealing interface in demanding driveline environments.

Key Features

• Part number: 18513
• Brand: SKF
• Category: differential seal for driveline and axle sealing systems
• Sealing surface type: polyacrylate
• Outside diameter: 2.852 in
• Shaft diameter: 1.850 in
• Width: 0.394 in
• Designed for rear differential applications

Fitment and Application

• Fits 1995-2003 Lexus GS300, rear
• Fits 2001-2003 Lexus GS430, rear
• Fits 2001-2003 Lexus LS430, rear
• Fits 2002-2003 Lexus SC430, rear
• Fits 1998-2000 Lexus GS400, rear
• Fits 1998-2000 Lexus LS400, rear
• Fits 1992-2000 Lexus SC300, rear
• Fits 1992-2000 Lexus SC400, rear
• Fits 1993-1997 Toyota Supra, rear

This part cross-references 145818513 and 975918513 for the same application.

Detailed Description

SKF 18513 is designed to help seal the rear differential on select Lexus GS300, GS430, LS430, SC430, GS400, LS400, SC300, SC400, and Toyota Supra models. The seal’s polyacrylate sealing surface is selected for the operating conditions found in driveline service, where consistent contact and dimensional accuracy matter for keeping gear oil contained and contaminants out. SKF has a long history in seal engineering, and this part reflects that focus on precise design and material selection.

For buyers searching for a rear differential seal for 1993-1997 Toyota Supra or a rear axle seal for 1995-2003 Lexus GS300, SKF 18513 provides a direct-fit service part reference. The compact dimensions and application-specific construction support proper sealing at the shaft interface in the rear differential housing.

Common Problems This Seal Addresses

• Gear oil seepage at the rear differential seal area
• Contamination entering the differential housing
• Seal wear from age, heat, and driveline fluid exposure
• Leak-related fluid loss around the axle shaft interface
• Maintenance replacement during differential service

Installation Notes and Quality Assurance

Confirm shaft diameter, outside diameter, and seal width before installation to match the housing and axle interface. Inspect the sealing surface and surrounding components for wear, scoring, or debris that could affect sealing performance. Clean the bore and shaft area thoroughly before installing the new seal to help achieve a proper seat and contact pattern.

SKF manufactures seals to defined specifications using premium materials and quality-controlled production methods. The brand’s seal engineering heritage and long-standing focus on durability support dependable service in driveline applications.