This is a A-CH10099 Gasket, Injector PN: CH10099Main Description As Following : A-CH10099 Gasket, Injector PN: CH10099 Found in Section & Models : Engine Parts > Fuel System Parts, John Deere TRACTOR, COMPACT: 1050, John Deere TRACTOR, COMPACT: 950 Associated Items : New Also A-SMJD47, A-JD-O-OMR72588, A-SMJD47 And : Inside Diameter: 1.073" Outside Diameter: 1.324" Thickness: .021"