This is a hub gasket oil seal kit manufactured by National.

Part # GKT009

Interchange Part # 73984

Redi-Seals are thoroughly tested, approved, and available in just the right quantity. National offers various types of Redi-Seals that are custom made to fit your design, size, application, material, and special feature specifications.

O-Ring Seal Kits are made from a high-quality Nitrile rubber or a high-temperature fluoroelastomer. These seal kits are available in inch and metric sizes.

The National Oil Bath Seal line provides complete coverage for all medium- and heavy-duty wheel end replacement applications and sets the standard for the industry.

Federal-Mogul also has pioneered the design and use of polytetrafluoroethylene (PTFE) oil seals for commercial-vehicle wheel end applications. The company's patented lay-down sealing lip design ensures long life in spite of extreme temperatures, shaft imperfections, shaft / bore misalignment and excessive shaft thrust or movement.

Replacement gasket for National® hub caps.

Non-stick gasket ensures faster, easier gasket installation and eliminates the need to use RTV silicone.

Highly resistant to compression set, ensuring superior sealing to the hub face and positive lube retention within the hub cavity.

Inside Diameter (In): 4.375 Inch

Inside Diameter (mm): 111.125mm

Material: Aramid Fiber, PTFE Coated

Outside Diameter (mm): 158.75mm

Type: Heavy Duty

Number Of Bolt Holes: 6

Bolt Circle Diameter: 5.5 in.

Fits Bolt Size: 0.3125 in.