GM 4L60 / 4L60E 3-4 Bonded Clutch Piston – Molded – 42287E – Replaces 61538 / 74960E
About this item
If you're rebuilding a GM 4L60 or 4L60E transmission, you know the 3-4 clutch piston is a critical part.
This is a brand new, unbranded bonded clutch piston—the molded type.
It's a direct replacement for the original.
The manufacturer part number is 42287E, and it also crosses to other numbers like 61538 and 74960E.
It's brand new, with a fresh surface finish, ready to install.
The 3-4 clutch is a common failure point in these transmissions, so putting in a new bonded piston is a smart move during a rebuild.
It's an unbranded part, but for internal transmission components, sometimes that's fine as long as the specs are right.
No word on warranty length, but it's a wear item.
If you're deep into a 4L60E rebuild, slap this piston in and button it up.
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