2 0 Cummins QSB 6.7 Valve Cover for a Cummins QSB-6.7 $75 USD Good used, cleaned and inspected Cummins QSB-6.7 valve cover. Part number: 5258937. ConditionUsedFits To Make(s)CUMMINSFits To Model(s)QSB-6.7Part Number5258937Stock NumberRyd 5258937 MLS Number13741354CategoryValve Covers Last Updated8/5/2025 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info