1 1 Mack E6-350 Engine for a 1990 Mack R SERIES $5,995 USD E6 350HP WITH JAKES GOOD RUNNING TAKEOUT/ RUNS GOOD NO BLOWBY, BEARINGS INSPECTED. 180 DAY WARRANTY ON HEADS BLOCK AND CRANK/ NO FUEL SYSTEM WARRANTY, NO WARRANTY ON GASKETS OR SEALS. NO... ConditionUsedHorse Power350 HPFits To Make(s)MackFits To Model(s)R SERIESWill Fit Year(s)1990Part NumberE6Stock NumberP-60833 MLS Number13395349CategoryEngines Last Updated4/1/2025 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info