Keep automatic transmission fluid sealed in and dirt and water out at the rear of the transmission with the SKF Automatic Transmission Seal 21139A. It is a direct-fit replacement for the 2004-2005 Dodge Ram 1500, the 2003-2005 Dodge Ram 2500, and the 2003-2005 Dodge Ram 3500 equipped with the 48RE.
SKF invented the first integrated shaft seal in 1928 and has kept developing new seal designs and bonding techniques since then. Its seals are built to specific designs with premium materials chosen for both the application and its operating environment, to keep lubricants in and contaminants out.
The seal body stays stationary while its lip contacts the rotating shaft. Signs this part may need replacing include transmission fluid seeping or dripping at the rear of the transmission, fluid spots under the vehicle, or a dropping fluid level. If a worn rear seal is the cause of the leak, this replaces it. Diagnose the leak source before you replace the seal. See the Buyer's Guide tab for complete application details.
Which vehicles does the SKF 21139A fit?
It fits the 2004-2005 Dodge Ram 1500 and the 2003-2005 Dodge Ram 2500 and Dodge Ram 3500 equipped with the 48RE. See the Buyer's Guide tab for full application details.
What position is this transmission seal?
SKF 21139A is the rear automatic transmission seal for the listed Dodge Ram applications.
What signs suggest the rear transmission seal may need replacing?
Fluid seeping or dripping at the rear of the transmission, spots under the vehicle, or a low fluid level can mean a leaking seal. Diagnose the leak source before you replace it.
What are the seal's case and spring made of?
The body is deep drawn sheet steel, which forms a rigid, stress-resistant metal case. The garter spring uses cold drawn steel wire for fluid retention.
Does the seal rotate with the shaft?
No. The seal body stays stationary while its lip contacts the rotating shaft, which helps keep lubricant in and contaminants out.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
