Orig. GM part # crank pulley

Rhojo

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Joined
Apr 17, 2009
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I'm trying to replace the crankshaft pulley on '88 5.7L OMC. I can't get the part number from it because it's too far rusted.

I was able to get the water pump pulley straight from a GM dealership using the origional part number stamped on it.

Does anyone know the original GM part number on the crankshaft pulley? Or does anyone know where I can find this information?

There are two pulleys one is a two-groove pulley and the other is a three-groove pulley. I have the two-groove pulley. I have current part numbers of 3852137 and 312783, I don't know which one is which but I need the GM original part number.

Thanks in advance for any help on this.

Jon
 
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