DwightsCh Posted March 13, 2015 Share Posted March 13, 2015 I had a new piston and liner kit gave to me for a e7 mack engine But the guy that gave me the kit said he didnt know what what horse power range the pistons are for need to know what pump injectors and turbo can any one tell me has 2 numbers on piston 1st # is 596 Bm 2nd # is 203908 any one Know? Quote Link to comment https://www.bigmacktrucks.com/topic/39246-e7-piston-liner-kit/ Share on other sites More sharing options...
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