Waukesha 6MZA Oil Filter Needed

John Denson · Sep 13, 2013

Looking for help in obtaining a replacement oil filter for a Waukesha 6MZA power unit. Waukesha P/N is 73923. All after market sources list this filter as a drop-in cartridge filter. This is NOT CORRECT. It is a screw on can filter with 9/16-18 threads. Engine was removed from a Bucyrus-Erie excavator. Please respond directly to [email protected] as this is time critical. Thanks in advance for your help.

jimg.allentown · Sep 13, 2013

Maybe not much help, but my best guess on this one would be that at some point, the filter was adapted to an aftermarket replacement filter that is more standard and easily obtained. My first suggestion is to look for any numbering on the old filter that might indicate manufacture and manufacturer's number designation and cross reference to a more commonly available filter.

Failing that, I would remove the old filter, drain it, and take it to a parts store to match up. There are a many sizes and shapes of filters available. You can start by matching the thread size/pitch and gasket diameter. Better suppliers may be able to find a suitable replacement based on dimensions.

Hope this can be of some help to you.

Duner Wi · Sep 13, 2013

I looked at specs for 300 spin on filters , None with 9/16 thread. Found 2 with 18 TPI by 5/8"
Fram PH21 fits WI engines and
Fram Ph922a fits British cars.
Good luck.

Waukesha 6MZA Oil Filter Needed

John Denson

New User

jimg.allentown

Well-known Member

Duner Wi

Well-known Member

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