SKF 19438 Differential Pinion Seal - Rear

Overview of the SKF 19438 Differential Pinion Seal

The SKF 19438 differential pinion seal is designed to provide reliable sealing performance for select Oldsmobile and Pontiac vehicles. Engineered with precision, this seal helps maintain proper lubrication and prevents leaks in the driveline system.

• Width: 0.500 inches for a secure fit
• Outside Diameter: 3.067 inches ensuring compatibility with specified models
• Shaft Diameter: 1.938 inches tailored for differential pinion shafts
• Sealing Surface Type: Silicone material for enhanced durability and resistance
• Compatible with Oldsmobile 88, 98 and Pontiac Bonneville, Catalina, Grand Prix models

Technical Details and Specifications

The SKF 19438 differential pinion seal features a silicone sealing surface that offers improved flexibility and resistance to heat and wear compared to traditional rubber seals. With a width of 0.500 inches and an outside diameter of 3.067 inches, this seal is engineered to fit the differential pinion shafts with a diameter of 1.938 inches. These precise dimensions ensure a tight seal to prevent oil leaks and contamination in the driveline system of compatible Oldsmobile and Pontiac vehicles.

Compatible Vehicles and Applications

This differential pinion seal is compatible with several classic and later model vehicles, including Oldsmobile 88 and 98, as well as Pontiac Bonneville, Catalina, and Grand Prix. It is specifically designed to replace worn or damaged seals in the differential assembly, helping to maintain optimal driveline performance and prevent costly repairs.

• Prevents oil leaks from the differential pinion shaft
• Reduces contamination ingress into the differential
• Maintains proper lubrication within the driveline system
• Helps avoid differential noise caused by seal failure
• Protects against premature wear of differential components

Installation Notes and Tips

When installing the SKF 19438 differential pinion seal, ensure the differential housing and shaft are clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the silicone sealing surface. Verify the seal dimensions match the original part to ensure proper fitment. It is recommended to inspect related components such as bearings and gears during installation for overall driveline health.

Quality Assurance and Warranty

SKF manufactures the 19438 differential pinion seal to meet strict quality standards, ensuring consistent performance and durability. The silicone sealing surface is designed to withstand harsh operating conditions typical of driveline environments. While specific warranty details may vary, SKF products generally come with a limited warranty against manufacturing defects, providing confidence in the part’s reliability for Oldsmobile and Pontiac differential applications.