(GOOD USED/ RUN TESTED/ INSPECTED) 1998 Mack E7 Diesel Engine with Jake Brakes (MECHANICAL FUEL PUMP), Serial # 8J0034, 350HP, Family # WMKXH0728M44, Low mile fleet maintained. Visit JJREBUILDERS for more information on this or any other diesel Engine you may be looking for. Call 786-377-5210 REF INV # 005979