New Lucas Reserve Valve (actually for main feed as per MkIII) for Aston Martin DB4GT, Single pipe, length is around 3.25" but every one is different.

Normally has 3/8 bsp male union to fit to larger bore pipe of the GT & GT engined cars than the STD DB4

Some slight other variations on each car, especially the Twin Side tank cars, may have been 6 cars built this way.

£442.50 + taxes