This is a set of four auto transmission oil cooler seals.  Don't let what seems like a slow leak kill your transmission!

This transmission side cover o-ring seals the side cover to the body of the transmission. We've found that the vast majority of transmission fluid leaks from the side of the trans are from the flange...

If you separate the final drive from the automatic section this large o-ring should be replaced. This is also included in our automatic transmission gasket kit, which also includes the very important...