This LP-Fill connection fits the standard 1-3/4" fill connection, and is equipped with a double check valve to prevent back flow during gravity filling or a dangerous venting of the main tank after disconnection. This filling connection is an exact replacement of the John Deere original, and includes the dust cap cover. Fits all John Deere tractors fitted for LP-Operation 420-4020 and 45-95 Combines. This shinny new solid brass valve body makes your fresh paint job snap with the golden contrasts. Replaces John Deere Parts AA6001R.