MACK , (USED) 1992 Mack E7-400 Diesel Engine (Mechanical Fuel Pump), Serial # 2X0343, 400HP @ 1800 RPM, llGBA 24320 P3, 11GBA 8030Y91, LOW MILES!!!! Test Run 11-28-16. Visit Our Website for more information on this and any other Diesel Engine you may be looking for. Call . ref INV # 003121