PLEASE NOTE: Delays in processing orders. Orders placed between Tuesday 21 January and Monday 10 February will be processed 11 February.
Valve guide, inlet (also exhuast on early twins) , suit Norton twins 500cc - 750cc, each, including 750 Commando. 2 or 4 required per motor, colisbro std size, OD 0.0501 inch Original part numbers: D12/140; K12/140; T2011; 050198 - valve guide (inlet or exhaust)