SKF 39423 Wheel Seal - Rear

SKF 39423 Wheel Seal Overview

SKF 39423 is a wheel seal built for driveline and axle sealing applications where lubricant retention and contamination control matter. With a nitrile sealing surface and precise dimensional sizing, it supports dependable sealing performance in service environments that demand consistent contact and fit.

For buyers searching for a wheel seal for axle service, SKF 39423 offers a direct replacement option with application-specific dimensions. It is a practical choice for wheel seal replacement on vehicles such as Ford F-150 and Chevrolet Silverado applications where the correct shaft and outside diameter measurements are critical.

Key Features

• Wheel seal for driveline and axle sealing systems
• Nitrile sealing surface type for sealing contact
• Outside diameter: 5.506 in.
• Shaft diameter: 3.938 in.
• Width: 0.438 in.
• SKF part number 39423 for catalog and cross-reference lookup

Detailed Product Description

SKF 39423 is engineered as a wheel seal with dimensions that matter during axle and hub service: 5.506-inch outside diameter, 3.938-inch shaft diameter, and 0.438-inch width. The nitrile sealing surface is selected for sealing performance in lubricant-retaining applications, helping maintain the barrier between internal grease or oil and outside road contaminants. SKF has a long history in seal design, and this part reflects that focus on precise construction and material selection.

This wheel seal is a strong match for technicians and parts buyers looking for SKF 39423, 39423, or a direct wheel seal replacement for Ford F-150 and Chevrolet Silverado service work. This part cross-references 921428C1 and 145839423 for the same application.

What This Wheel Seal Helps Address

• Lubricant leakage at the wheel end
• Dirt, water, and road debris entering the sealed area
• Seal wear caused by age, heat, or contamination
• Noise or roughness associated with compromised axle sealing
• Service issues during wheel seal replacement on axle assemblies

Installation Notes and Tips

Verify shaft diameter, outside diameter, and width before installation to confirm the seal matches the hub or axle specification. Inspect the sealing surface and mating components for scoring, corrosion, or wear before pressing in the new seal. Clean the sealing area thoroughly and follow the vehicle service procedure for proper seating and alignment. For fitment-based searches, confirm the exact application by year, make, model, and position before ordering SKF 39423.

Quality Assurance

SKF manufactures seals to specific designs using premium materials and controlled production standards. The brand’s seal engineering background and long-running focus on keeping lubricants in and contaminants out support consistent product quality for axle and wheel-end service.