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3126 engine Ser. number


New Recruit
Fleet Manager
We have a number GMT7500 trucks. My current problem is that on one of the units the engine decal is missing and i need the engine number for servicing purposes. Can anyone tell where i can fined this number stamped on the engine block?


Veteran Expediter
A good commercial GM dealer can tell you with the VIN. Any CAT dealer can also tell you. Otherwise, it's engraved on the block to oil pan flange just above the starter, but it is incredibly hard to read as it is a dot matrix kind of print....area needs to be spotlessly clean to see it.