Caterpillar part numbering system

samedi 22 juillet 2017

Does the Caterpillar part numbering system mean anything?

Sometimes, like inner and outer air filters, two parts will have part numbers the same apart from the last digit. However sometimes they are completely different.

Lots of their oil and fuel filters start with the prefix 1R-? But plenty of others don't.

Just wondering if there is any logic behind how the part numbers are allocated?

Caterpillar part numbering system

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