Petcock installation kit includes 8 thin metal indexing washers and 2 fiber sealing washers. It is designed to accompany the original style petcock with part number 12105401. The purpose of this kit is allow you to tighten the petcock to the fuel tank while maintaining correct alignment of the petcock's valve handle in the most accessible and convenient position. Without these indexing washers, the petcock may or may not tighten up when the valve handle is most accessible and convenient. Sandwich the indexing washers between 2 sealing washers. To adjust the location of the valve handle, simply add or remove the thin indexing washers and re-adjust. Each washer allocates approximately 20% of a full petcock rotation.
Petcock, fuel valve, gas tap