Automatic Transmission Extension Housing Seal by National®. Width: 0.437". Inside Diameter: 1.558". Outside Diameter: 2.254". Housing Bore: 2.250". Flanged Outside Diameter: 2.515". Don’t just repair a leak, prevent future problems with a National Oil Seal. This part is manufactured using exclusive National Dynamic Edge technology that generates a dynamic pumping action to keep harmful contaminants such as dirt, moisture, etc. out of the seal and other wheel-end components.
Specifications
Flanged Outside Diameter (Inch): 2.515 in
Flanged Outside Diameter (MM): 63.880 mm
Housing Bore (Inch): 2.250 in
Housing Bore (MM): 57.150 mm
Inside Diameter (Inch): 1.558 in
Inside Diameter (mm): 39.570 mm
Material: Nitrile
Outside Diameter (Inch): 2.254 in
Outside Diameter (mm): 57.250 mm
Overall Width with Side Lip (MM): 38.610 mm
Overall Width with Side Lip (Inch): 1.520 in
Sealing Material: Nitrile
Series: 8000
Shaft (Inch): 1.558 in
Shaft (MM): 39.570 mm
Thickness (Inch): 0.437 in
Thickness (mm): 11.099 mm
Type: 79
Width (Inch): 0.437 in
Width (mm): 11.099 mm
Features
Designed to increase wheel-end reliability by effectively excluding dirt, moisture, and other contaminants
A patent-pending National Dynamic Edge technology allows for maximum protection
Helps prevent premature bearing failure
Unmatched durability under the most grueling conditions
Constructed to meet OE configurations
Low swell in hydrocarbon fluids
Design type: spring loaded: multi-lip
Provides good low temperature capability
Temperature range: -40°F to 225°F: -40°C to 107°C
Delivers quality and reliable performance for every type of repair
Engineered for performance, National oil seals deliver superior protection and long service life thanks to premium material construction and a patent-pending National Dynamic Edge technology used in their manufacture. This innovation aggressively deflects dirt, liquid, and other contaminants that can lead to premature seal and bearing damage and diminished wheel-end performance. The National Dynamic Edge design consists of an integral sinusoidal wave that produces a dynamic pumping action to move contaminants away from the seal. This innovation ensures maximum protection from environmental contaminants under even the most adverse conditions. This part is engineered to meet OE specs to perfectly fit your vehicle.
National®, a brand of the Federal-Mogul Corporation, is a well-known name not only in the automotive industry, but also on the agricultural and industrial markets. For over 60 years, National has built a well-earned reputation offering high-end, premium products that meet or exceed the OE requirements across a wide range of wheel bearings and oils seal needs. The team at National keeps pace with the industry and provides ultimate solutions to meet the needs of today’s vehicles. The company has modern equipment, technology, and the expertise to coordinate the development, manufacturing, and testing of each product for maximum satisfaction of customers' needs. National is a premier choice when it comes to complete wheel end solutions.
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National® - Automatic Transmission Extension Housing Seal
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