Triumph Timing Chain Crankshaft Sprocket. 25mm Shaft Single Sprocket 100431

Timing Chain Crankshaft Sprocket.  Triumph  100431

Timing chain crankshaft sprocket. 100431.

Note the crankshaft size on this sprocket is 25mm OD

Triumph Herald,   ( Not 13/60 Model)

Triumph Spitfire Mk1, Mk2, Mk3.

For the Crankshaft sprocket  (35mm Shaft ) that suits the larger engine Triumphs see our listing 119389

For the Cam Shaft Sprocket see our listing : 035960