This is a A-AT321249 Cap, Fuel Filler PN: AT321249Main Description As Following : A-AT321249 Cap, Fuel Filler PN: AT321249 Found in Section & Models : Engine Parts > Fuel System Parts, Hitachi EXCAVATOR: ZAXIS120-3, Hitachi EXCAVATOR: ZAXIS135US-5N, Hitachi EXCAVATOR: ZAXIS160LC-3, Hitachi EXCAVATOR: ZAXIS200LC-3, Hitachi EXCAVATOR: ZAXIS245USLC-5N, Hitachi EXCAVATOR: ZAXIS350LC-3, Hitachi EXCAVATOR: ZAXIS350LC-5G, Hitachi EXCAVATOR: ZAXIS350LC-5N, Hitachi EXCAVATOR: ZAXIS380LC-5N, John Deere EXCAVATOR: 120D, John Deere EXCAVATOR: 130G, John Deere EXCAVATOR: 135D, John Deere EXCAVATOR: 190DW, John Deere EXCAVATOR: 200DLC, John Deere EXCAVATOR: 225DLC, John Deere EXCAVATOR: 240DLC, John Deere EXCAVATOR: 245GLC, John Deere EXCAVATOR: 270DLC, John Deere EXCAVATOR: 290GLC, John Deere EXCAVATOR: 370C Associated Items : New Also This is An Aftermarket Product And : Diameter: 4.55"