Caterpillar D4's - Joining the Cat Club

operators instructions is very useful and a parts manual--but make sure it covers your serial numbers---not one that says 7u1 and up as an example

Hey Dependzic: Thanks for the insights will start picking up the operators and parts books. Where to find the serial number on these old D4's???

Thank much....

Hi, RPeck.
Serial #s: Left side of engine block towards rear, above starter pinion housing - left rear of steering clutch case. Both locations should have stamped aluminum tag rivetted to them. If the tag is missing, the numbers should be stamped into the metal where the tag was - look for the rivets or rivet holes. If there has been an engine swap at some stage, tags/serial #s will not match.

Just my 0.02.

Deas - Excellent - thank you for the tune up on the serial number locations - very much appreciated!!!

Happy Holidays.....

Hi, RPeck.
Yer welkum, M8. Cat fever is a little like alcoholism - there ain't no cure while yer breathin'. Alcoholics have AA to help them deal with their issues. We have ACMOC to help us deal with ours.

Happy holidays backatchyer.

Just my 0.02.