National 4741 Manual Transmission Output Shaft Seal

Manual Transmission Output Shaft Seal for Ram

National 4741 is a manual transmission output shaft seal built for applications that need a precise sealing surface and stable fit at the transmission tail housing. It uses a fluoro-elastomer sealing material and a counter-clockwise spiral lip design to help manage oil control in demanding driveline service.

Compatible with select Ram and Dodge Ram trucks, including Ram 2500, Ram 3500, and Ram 1500 applications, this National 4741 oil seal is sized for the specified shaft and housing dimensions. It is a direct-fit sealing component for manual transmission service where leakage at the output shaft can affect drivability and fluid retention.

Key Features

• Manual transmission output shaft seal for driveline oil control
• Fluoro-elastomer sealing material for transmission sealing applications
• Counter-clockwise spiral lip design
• Redicoat surface treatment
• Inside diameter: 2.200 in. / 55.880 mm
• Outside diameter: 3.028 in. / 76.910 mm
• Width: 0.422 in. / 10.720 mm
• Housing bore: 3.022 in. / 76.760 mm
• National 4741 / Part Number 4741

Detailed Description

National 4741 is part of the 4000 series and is engineered as an oil seal for manual transmission output shaft service. The fluoro-elastomer sealing material is selected for sealing performance in transmission environments, while the spiral lip geometry supports controlled sealing action at the shaft interface. With a 2.200-inch shaft diameter and 3.028-inch outside diameter, this seal is sized for the listed housing bore and shaft dimensions. National has supplied sealing solutions for more than 75 years, and this part reflects that focus on transmission sealing accuracy and fit.

This part cross-references Gates 22029 for the same application.

What It Helps Address

• Transmission fluid seepage at the output shaft
• Oil leakage around the tail housing area
• Seal wear from shaft rotation and heat exposure
• Loss of fluid retention in manual transmission service
• Service replacement for worn or damaged output shaft seals

Installation Notes and Tips

• Verify shaft diameter, housing bore, and seal width before installation.
• Inspect the output shaft surface for grooves, scoring, or corrosion that can affect sealing.
• Clean the bore and sealing surface thoroughly before pressing the seal into place.
• Confirm the seal orientation matches the transmission application and lip direction.
• Use proper installation tools to avoid distorting the seal case or lip.

Quality Assurance

National is a long-established sealing brand with a focus on transmission and driveline sealing components. Part Number 4741 is built to the listed dimensional specifications and material type for the stated applications.

Fits 2011-2019 Ram 2500, N/A. Fits 2011-2019 Ram 3500, N/A. Fits 2012 Ram 1500, N/A. Fits 2007-2010 Dodge Ram 2500, N/A, with Chrysler 68RFE Transmission. Fits 2008-2010 Dodge Ram 3500, N/A. Fits 2007 Dodge Ram 3500, N/A, with Chrysler 68RFE Transmission. Fits 1994-2005 Dodge Ram 2500, N/A, with New Process 4500HD Transmission. Fits 1994-2005 Dodge Ram 3500, N/A, with New Process 4500HD Transmission.