SKF 38780 Wheel Seal - Rear or Rear Inner

SKF Scotseal Classic Rear Wheel Seal

The SKF Scotseal Classic rear wheel seal is built for dependable axle sealing in heavy-duty truck service. Part number 38780 is a rear wheel seal with a nitrile sealing surface, sized for a 3.875 shaft diameter, 5.696 outside diameter, and 0.938 width.

For fleets and technicians servicing rear wheel ends on truck applications, SKF 38780 is a practical choice when you need consistent sealing performance between brake maintenance intervals. It is also a strong match for buyers searching for rear wheel seal replacement, SKF wheel seal 38780, and heavy-duty axle seal service parts.

Key Features

• Rear wheel seal for driveline and axle sealing applications
• Nitrile sealing surface type for durable sealing contact
• Width: 0.938
• Outside diameter: 5.696
• Shaft diameter: 3.875
• SKF part number 38780 for easy identification
• Cross-reference part numbers include 02-7021377 and 1100D6-24

Product Details

SKF’s Scotseal Classic line is a long-running wheel seal platform used in heavy-duty service where rear wheel-end sealing matters. The 38780 seal is engineered around the listed dimensions to support proper fit at the shaft and housing interface, helping maintain a stable seal in demanding truck axle environments. Buyers looking for a rear wheel seal for truck axle maintenance, SKF Scotseal Classic 38780, or a nitrile wheel seal for rear wheel service will find this part aligned with those needs. It is commonly searched alongside vehicle terms such as Freightliner, Kenworth, and Peterbilt in rear axle seal replacement research.

What It Helps Address

• Gear oil leakage at the rear wheel end
• Contamination entering the axle seal area
• Seal wear found during brake service inspections
• Loss of sealing performance between maintenance intervals
• Replacement needs for rear wheel seal service on heavy-duty trucks

Installation Notes and Tips

Install SKF 38780 using the correct SKF tools and procedures to help achieve proper seal seating and service life. Inspect the shaft and sealing surfaces for wear, scoring, or contamination before installation. Confirm the shaft diameter, outside diameter, and width match the application requirements before assembly. For rear wheel seal replacement on truck axle service, clean the bore and mating surfaces thoroughly and follow the axle manufacturer’s service specifications.

Quality Assurance

SKF manufactures this wheel seal to high quality standards for long service life and safety in heavy-duty use. The Scotseal Classic line has been established in trucking service for decades and has accumulated extensive real-world mileage in field use.