Triumph / BSA Twins Inlet Cam Breather Valves (1) - Choose Rotary Valve Type

For sale today are new & used Triumph / BSA inlet camshaft breather valves. Breather valves where fitted to twin cylinder models on the drive-side end of your inlet camshaft to aide engine breathing.

We stock two types of valves under part numbers 70-2254, E2254, 70-5316, E5316 and 68-0101. Fits most Triumph and BSA unit twins and pre-unit (Bonneville, T120, T100, A65, T110, etc) from approx 1944-1970. Check your parts book to ensure the best fitment.