SKF 42550 Wheel Seal - Rear

Wheel Seal Overview

SKF 42550 is a wheel seal for heavy-duty rear axle applications with confirmed fitment on select Chevrolet and GMC trucks. It uses a nitrile sealing surface and is built for dependable sealing performance between brake service intervals.

Key Features

• Nitrile sealing surface for consistent sealing contact.
• Designed for heavy-duty wheel-end service.
• Dimensions include 0.938 width, 5.506 outside diameter, and 4.250 shaft diameter.
• SKF engineering and manufacturing standards support long service life.
• Part number 42550 for easy identification and ordering.

Detailed Description

SKF 42550, also known as Scotseal Classic, is a wheel seal developed for demanding truck axle service. The design has a long service history in commercial applications and is intended to maintain sealing performance through normal brake maintenance intervals when installed with proper SKF tools and procedures. This part cross-references Monroe Shocks & Struts (e.g., 73873, 2038244) for the same application. For buyers searching for a Chevrolet C60 wheel seal or a GMC C7000 rear wheel seal, 42550 provides a direct replacement option within the listed axle-specific applications.

What It Is Used For

• Replacing a worn or leaking wheel seal.
• Restoring axle-end sealing integrity.
• Reducing contamination at the wheel end.
• Addressing seal wear found during brake service.

Installation Notes and Tips

Verify axle type and brake configuration before ordering, since fitment varies by application notes. Clean the sealing surfaces thoroughly and follow SKF installation procedures to avoid premature seal damage. Confirm the part number 42550 against the vehicle’s axle specification before installation on Chevrolet C50, Chevrolet C70, or GMC C6000 applications.

Quality Assurance

SKF states that its products are manufactured to high quality standards for long service life and safety. Scotseal Classic has a long field history in commercial truck service, and proper installation is important to achieving reliable sealing performance.