Mack E7-350, ECMs, (TESTED w/ WARRANTY) 2002 Mack E7-350 Diesel Engine Computer Module (ECM) 12MS523M For Sale, ECM, ECU, OEM Part # 12MS523M, Bosch Part # 0281010820, 0 281 010 820, 12V, Pulled Off Mack E7-350 w/ Jake Brakes, NON-EGR, Serial # 62014, Stock # 8293
