PLEASE NOTE: Delays in processing orders. Orders placed between Tuesday 21 January and Monday 10 February will be processed 11 February.
Oil Non-return valve suit Commando and Norton twins, 1/2 inch spigot ends. Includes instructions. Same spring and ball as fitted to Velocettes. Length: 2 1/2in (65MM); Weight: 37g; Diameter: 1in (25MM); Inside Diameter: 5/16in (8MM). Stops wet sumping, anti drain valve.
