A604 / 40TE / 41TE

Automatic transmission components are unit specific, and the differences are rarely visible side by side.A604 underdrive clutch pressure plate. The piece is produced to the dimensions the position requires.The position...

The cost of a wrong part is never the part; it is the second teardown.A604 Hard Parts Hard Part. It meets the dimensions the assembly was built around.Internal specifications change...

A cracked or hardened piston seal bleeds off apply pressure and the clutch it feeds slips under load.A604 piston 2-4. This restores the piece that turns line pressure into clamp.Apply...

The cost of a wrong part is never the part; it is the second teardown.A604 pump gears. It is cataloged against the unit code rather than the vehicle.Fit and finish...