Posted 11/20/2024 21:59 (#10976042 - in reply to #10975546) Subject: RE: wabco 3103413 or 5579049RXCUM air compressor for ISX cummins
North east Iowa
Just did an x15 recently and asked someone reputable about this same question. Said just put a genuine cummins on. Tried the head kit and multiple aftermarket and ended up having to put the Cummins on in the end.