New Triumph & BSA Unit 650 Twins Gear Change Index Camplate Detent Plunger. Experiencing transmissions problems? Gears not wanting to engage? False Neutrals? Chances are your Gear Change Index Plunger is worn. This part plays a crucial role in your transmission to keep it functioning and operating smoothly. Fits all BSA A50 & A65 Twins (Lightning, Thunderbolt, Hornet, Wasp, Cyclone, Star Twin, Spitfire, Firebird & Royal Star) from 1962-1972. Fits Triumph 650 & 750 Unit Twins (Bonneville, T120, TR6SS, T120C, 6T, T140, TR7, Thunderbird) from 1963-1977. Also fits various Triumph 4-Speed Pre-Unit 350, 500 & 650 Twins (Bonneville, T120, Tiger, T110, TR6, TR5, Etc) up to 1962. Please refer to your parts catalog for proper fitment.
*****Triumph Owners: Please note that this part will replace the early 57-0044 Index Plunger but must be used in conjunction (recommended) with the later type Camplate for the best results #57-4055. See below.*****
For the "Upgraded" 4-Speed Cam Plate for Triumph Twins that should be used in conjunction with this Index Plunger for optimum results search (57-4055)
•Made in England
•O.E.M Part number is 57-3660, T3660 or 68-0098