Originally Posted by Xsakojan818X
. But there discontinued as a oem i want to know what year is the latest i can install and replace from a cj or a yj
rockauto.com shows 8 different fan clutches for the Jeep 4.2 engine, ranging from $20 to $50. One of them is ACDELCO which is probobly OEM.
Variations for serpentine (reverse rotation), and non-serpentine (standard rotation).
That said, I have neither a clutch, or shroud, and I've never overheated unless there was a specific issue. ie vac leak, ignition issue, broken belt.