View 6 Photos View 0 Videos 1990 Mack EM6 Engine Contact for price USED EM6-350 HP MACK 4 VALVE MECHANICAL PUMP ENGINE, 1.990, COMPLETE, INSPECTED AND TESTED RUNNING ENGINE, ALSO MANY ENGINES IN STOCK. ConditionUsedHorse Power350 HPStock Number1281-1211194 MLS Number10014173CategoryEngines Last Updated5/30/2020 LocationMiami, FL, US Sold By4-Trucks Enterprises LLC (833) 734-___ SHOWNUMBERCall Seller Email Seller Save More Info