6 0 Mack E7-300 Piston / Rod for a 1999 Mack MR688S $100 USD Good Used, Mack, E7-300, Rod and Piston, Casting Number on Rod is (F545). Number on Piston (P5 282H01) (182GC2223-BN). (Engine S/N#. 9d3767). Please see pictures. Please call or email with... ConditionUsedFits To Make(s)MackFits To Model(s)MR688SWill Fit Year(s)1999Part NumberP-4774Stock NumberP-4774 MLS Number9635284CategoryPistons & Rod Parts Last Updated2/21/2025 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info