The fuel pump relay in my 87 300e is part number 002 545 52 05

I have searched for this on the parts website and don't come up w/ the same part number. It matches to a KAE fuel pump relay w/ 1 more pin than mine has at part no. 3.301.300 (a relay i just snagged from a junkyard).

Would this also be interchangeable with the same number of pins and part no. 003 545 00 05? These non-matching part numbers are making me crazy.

Thanks for your help.

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87 300E
202k on the clock