Triumph Pre-Unit Twins Gear Box Sprocket Nut (1) 57-0440 70-4587 Fits Triumph 650 & 750

Fits Triumph 650 & 750 OIF Twins (Bonneville

Measures 7 1/2" in total length and the handle measures 5"

* New English Made Original NOS BSA 500 & 650 Unit Twins Crankshaft Oil Pump Worm Gear

**Important Info**

Comes with a lovely chrome finish and a durable build quality

Triumph Pre-Unit Twins Gear Box Sprocket Nut (1) 57-0440 70-4587 Fits Triumph 650 & 750Replace your old and damaged gear box sprocket nut with this quality English made part. This part replaces Triumph part number 57 0440, T0440 and T440. Manufactured from high tensile steel unlike others on the market. This nut threads on to your high gear to secure your transmission sprocket. Fits Triumph 650 pre unit twins (Bonneville, T120R, Tiger, TR6, T110, 6T, etc) from approx 1938 1962. Also fits Triumph 500 pre unit twins up to approx 1956.