5 0 2013 Mack MP8 Engine Oil Cooler for a Mack CXU613 $400 USD Mack MP8 Oil Cooler, Part # 21420521. All Used Engine Parts Sold With a 30 Day “Parts Only†Warranty. In The Event Of Failure, The Used Engine Part Will Be Replaced Or A Refund Will... ConditionUsedFits To Make(s)MACKFits To Model(s)CXU613Stock NumberUPS-274281-66 MLS Number13891350CategoryEngine Oil Coolers Last Updated10/28/2025 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info