SKF 38747 Wheel Seal - Rear or Rear Inner

SKF 38747 Wheel Seal Overview

SKF 38747 is a wheel seal for driveline and axle sealing applications where consistent hub protection matters. Built around a nitrile sealing surface, it is intended to maintain a dependable seal between brake service intervals on heavy-duty trucks and related axle assemblies.

For buyers searching for a wheel seal for Freightliner, Kenworth, or Peterbilt applications, SKF 38747 offers a proven service profile backed by SKF manufacturing standards and long-term field use.

Key Features

• Part number: 38747
• Wheel seal with nitrile sealing surface type
• Outside diameter: 5.381 in.
• Shaft diameter: 3.875 in.
• Width: 1.016 in.
• SKF-engineered sealing component for driveline and axle service

Detailed Product Description

SKF 38747 is a wheel seal designed for axle and hub sealing applications where contamination control and lubricant retention are critical. The nitrile sealing surface supports reliable contact at the sealing interface, while the listed dimensions help confirm proper match-up during replacement. This part number 38747 is commonly searched by technicians and fleet buyers looking for a direct wheel seal replacement in heavy-duty service work.

This part cross-references 280886C91 and 145838747 for the same application. When servicing Freightliner, Kenworth, or Peterbilt wheel-end assemblies, verify shaft diameter, outside diameter, and seal width against the original component before installation.

Common Issues This Seal Can Address

• Gear oil or lubricant leakage at the wheel end
• Contamination entering the hub or axle seal area
• Premature wear from an incorrect seal dimension
• Brake service interruptions caused by seal failure
• Reduced sealing performance from an aged or hardened seal

Installation Notes and Tips

Clean the hub, spindle, and sealing surfaces before installation. Confirm the shaft diameter, outside diameter, and width match the original seal specification for the vehicle and axle assembly. Use proper SKF tools and procedures during installation to help prevent seal damage and ensure correct seating. For Freightliner, Kenworth, and Peterbilt wheel seal replacement, always inspect the mating surfaces for wear, scoring, or corrosion before fitting the new seal.

Quality Assurance

SKF manufactures this wheel seal to high quality standards for long service life and dependable sealing performance. The manufacturer notes that Scotseal Classic has a long service history in trucking applications and has been validated through extensive road use when installed correctly.