National Oil Seal

Trusted Wheel End Solutions for Over 75 Years

National Oil Seal has earned its place among the most respected names in the automotive sealing and bearing industry. With more than 75 years of expertise, the brand has built a reputation for premium quality wheel end solutions that meet or exceed original equipment specifications. Originally part of Federal-Mogul and now distributed through Timken, National continues to serve technicians and vehicle owners who demand reliability in critical sealing applications.

The brand's engineering legacy is rooted in innovation. National's oil seals feature proprietary RediCoat sealant technology, designed to provide a proper seal despite minor bore imperfections, addressing real-world installation challenges that mechanics face daily. From advanced PTFE sealing compounds to patented Sure-Lock I.D. rib designs, National's product development keeps pace with evolving vehicle demands and operating environments.

Comprehensive Wheel End Coverage

National Oil Seal's product catalog addresses virtually every wheel end repair scenario. Their wheel bearing and hub assemblies deliver complete solutions that simplify complex repairs, combining precision bearings with integrated sealing systems. For applications requiring separate components, National's wheel hubs provide the structural foundation for reliable wheel end performance.

Critical sealing applications are where National truly excels. The brand's wheel seals protect bearing assemblies from contamination while retaining essential lubricants, even under severe operating conditions. Their multi purpose seals offer versatile solutions across various automotive systems, from axle applications to transmission components, featuring diverse lip configurations and sealing materials tailored to specific pressure and temperature requirements.

Precision Engineering for Modern Vehicles

National's engineers keep pace with industry changes and provide advanced technologies to meet the needs of today's vehicles. The brand's catalog includes specialized designs like unitized construction for improved structural integrity, spring-loaded sealing lips for consistent contact pressure, and dual-wall construction for enhanced durability. These engineering refinements translate to longer service life and reduced comebacks for professional installers.

Beyond traditional sealing applications, National also manufactures console covers and other interior components that complement their core wheel end product line. This breadth of catalog coverage makes National a comprehensive source for both drivetrain sealing needs and select interior applications.

Why Professionals Choose National

National Oil Seals feature precision sealing designs that are well-matched for use with original equipment and aftermarket applications, giving technicians confidence in both new installations and repair scenarios. The brand's commitment to matching OE specifications ensures proper fit and function across domestic and import vehicles. Whether addressing a routine wheel bearing service or tackling a complex axle rebuild, National's proven track record makes it a trusted choice for automotive professionals and enthusiasts who refuse to compromise on wheel end integrity.