SKF 18478 Drive Axle Shaft Seal - Front Left or Front Right

SKF Front Right Axle Shaft Seal

SKF 18478 is a front right drive axle shaft seal built for Toyota and Lexus applications that need reliable sealing at the axle housing. It uses a nitrile sealing surface and precise dimensions to help retain lubricant while keeping road debris and moisture out.

Key Features

• Brand: SKF axle shaft seal for the front right position
• Part number: 18478
• Nitrile sealing surface for dependable sealing performance
• Width: 0.394 in.
• Outside diameter: 3.156 in.
• Shaft diameter: 1.850 in.
• Fits Toyota 4Runner, Tacoma, Tundra, Sequoia, Land Cruiser, and FJ Cruiser applications, plus Lexus GX470, GX460, LX470, and LX570 models

Product Details

SKF has a long history in shaft seal engineering, and this axle shaft seal reflects that experience with application-specific design and premium materials. The seal is made to match the required dimensions for the front axle shaft location, helping maintain proper lubrication at the differential or axle assembly. SKF 18478 is a direct-fit sealing component for a wide range of Toyota and Lexus front right axle applications, including 2017-2023 Lexus GX460, 2017-2021 Lexus LX570, and 1995-2021 Toyota Tacoma.

This part cross-references Monroe Shocks & Struts (e.g., 9031147010) for the same application.

Common Problems This Seal Can Address

• Gear oil seepage at the front axle shaft opening
• Contamination entering the axle housing
• Loss of lubricant around the axle seal area
• Noise or wear related to low axle lubricant level
• Seal replacement during front axle service on Toyota and Lexus 4WD models

Installation Notes and Tips

Confirm the front right position before installation and verify shaft diameter and seal dimensions against the original part. Inspect the axle shaft and sealing surface for wear, scoring, or corrosion before fitting the new seal. Clean the housing bore thoroughly so the seal seats evenly and maintains proper contact.

Quality Assurance

SKF manufactures seals to specific designs using premium materials and high production standards. The brand’s seal engineering heritage dates back to the first integrated shaft seal, and its products are built for long service life and dependable sealing performance.