MACK , (USED) 1992 Mack EM7-300 Diesel Engine (SEMI ELECTRONIC FUEL PUMP), Serial # 2W0774, 11GBA 24363 P1, 300HP @ 1750, LOW MILES! Test Run 5-18-16. Visit Our Website for more information on this and any other Diesel Engine you may be looking for. Call . ref INV # 002912