New BSA Gas Tank Petcock Adapter. If your gas tank accepts a larger 3/8″ petcock but you would like to use a standard 1/4″ Triumph petcock you can now do so by using this adapter. This adapter is a “reducer” and comes threaded on the inside – straight pipe threads (BSP). Please refer to your parts catalog for proper fitment.

*****Please read the complete listing to ensure the best fitment.*****

Made in England
O.E.M Part number is CBS-73119