National 482208 Manual Transmission Input Shaft Seal

Manual Transmission Input Shaft Seal for Classic Ford and Jeep

National 482208 is a manual transmission input shaft seal built for select Ford, Mercury, and Jeep applications. It uses nitrile material and Redicoat sealing technology to help maintain a tight seal at the transmission input shaft, where fluid control is critical.

With OE-style dimensions and broad fitment across vintage Ford Mustang, Jeep CJ5, and Mercury Colony Park applications, this seal is a direct replacement choice for manual transmission service work. The National 482208 part number is also commonly searched for restoration and drivetrain repair projects.

Key Features

• Nitrile construction for sealing performance in transmission service
• Redicoat finish for improved sealing contact
• Oil seal design for manual transmission input shaft applications
• Inside diameter: 1.125 in. / 28.580 mm
• Outside diameter: 1.628 in. / 41.350 mm
• Thickness: 0.245 in. / 6.220 mm
• Housing bore: 1.624 in. / 41.250 mm
• National 482208 from the 480000 series

Detailed Description

National has supplied sealing solutions for more than 75 years, and this manual transmission input shaft seal reflects that focus on dimensional accuracy and material selection. The nitrile seal body is paired with a Redicoat sealing surface to help maintain contact at the shaft interface, while the listed inch and metric dimensions support proper matching during transmission rebuilds and repairs. This part is used in applications such as 1964-1966 Ford Mustang, 1976-1979 Jeep CJ5, and 1963-1965 Mercury Colony Park with the specified manual transmissions.

This part cross-references BBB Industries 11123 and Continental 62276 for the same application.

What This Seal Helps Address

• Transmission fluid leakage at the input shaft
• Fluid seepage around the bellhousing area
• Seal wear from age, heat, and mileage
• Service issues during manual transmission rebuilds
• Replacement needs on vintage Ford, Mercury, and Jeep drivetrains

Installation Notes and Tips

Verify shaft diameter, housing bore, and transmission type before installation. This seal is listed for specific manual transmission applications, including Tremec 173F, Borg-Warner T15A, Borg-Warner T10 variants, Ford Type 2 4-speed, and Borg-Warner T85 configurations shown in the fitment data. Clean the bore and shaft surface thoroughly before installing the seal to help ensure proper seating and sealing contact.

Compatible vehicle coverage includes 1978-1979 Ford F-100, F-150, F-250, and F-350 with Tremec 173F transmission, plus Jeep Cherokee, CJ7, J10, J20, and Wagoneer applications listed in the fitment data. National 482208 is also listed for Ford E-100 Econoline and E-100 Econoline Club Wagon models with Tremec 173F transmission.

Quality Assurance

National is a long-established sealing brand known for premium sealing solutions and ongoing product development for modern and legacy vehicles. The 482208 seal is built to published dimensions and material specifications to support consistent service replacement.