Home>> D1NN473A - Piston Seal Backup RingPiston Seal Backup Ring - Fits Ford® - D1NN473ASugg. Retail Price:$3.33/EAOut of StockQuantity: EA Product Details# D1NN473A New (Aftermarket Part)Piston Seal Backup RingWeight: 0.10 lbsReplaces Tractor Part #: WARNING:Cancer and Reproductive Harmwww.P65Warnings.ca.govWhere UsedFITS FORD® 3550, 4000, 4400, 4500SpecificationsInstructionsAny use of OEM part numbers is for reference only. Need help finding a tractor part? Give us a call at 1-800-462-7335.