Help keep transmission fluid in and dirt and water out at the rear of the transmission with the SKF Automatic Transmission Seal 21236. This rear seal is a direct-fit replacement for the listed applications, and it fits many Chevrolet and GMC vehicles, among them the 1992-2000 Chevrolet C3500HD and 1997-2000 Chevrolet C6500 Kodiak. See the Buyer's Guide tab for the full list.
SKF invented the first integrated shaft seal in 1928 and has continued to develop new seal designs and bonding techniques since then. Its seals are made to specific designs using premium materials chosen for both the application and its operating environment, with the aim of keeping lubricants in and contaminants out.
Signs this part may need replacing include fluid wetness or drips at the rear of the transmission and a dropping transmission fluid level. Confirm the source of the leak before replacing the seal. The listed applications each use one seal.
Interchange: 4133112100 · 8675731 · 27SS3112
This part cross-references / interchanges with the following part numbers:
What does the SKF 21236 seal do?
It is a rear automatic transmission seal. Its lip seals against a 2.125 in shaft to help keep transmission fluid in and dirt and water out.
Which vehicles does it fit?
It fits many vehicles, among them the 1992-2000 Chevrolet C3500HD and 1997-2000 Chevrolet C6500 Kodiak. See the Buyer's Guide tab for the full list.
What are the seal's dimensions?
It has a 2.125 in inside diameter, a 2.890 in outside diameter, and a 0.552 in width, and it is sized for a 2.125 in shaft diameter.
What is the seal made of?
The body is deep-drawn sheet steel and the garter spring is cold-drawn steel wire. The sealing surface type is Vamac.
How do I know if my rear transmission seal needs replacing?
Warning signs include fluid wetness or drips at the rear of the transmission and a dropping fluid level. Diagnose the leak source before replacing the seal.
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.
