8 0 Mack EM7 Engine - 300 HP Contact for price Mack EM7 Engine; GOOD RUNNER!!! 4 Valve Mechanical; 300 Hp; Low Miles!! Call or message with any questions or visit our website. ConditionUsedHorse Power300 HPEngine ModelEM7-300Stock Number1504 MLS Number10198167CategoryEngines Last Updated12/12/2022 LocationSpringville, PA, US Sold BySummit Core Supply (844) 329-___ SHOWNUMBERCall Seller Email Seller Save More Info