BSA Transmission Parts
If the time has come to rebuild your gear box or try to fix your "mis-shifting" issues, Classic British Spares has the parts you need for your transmission overhaul or "spruce up".
In the pages below you will find everything related to your "gear box" AKA "transmission" including clutch chain wheel baskets, pinion gears, oil seal kits, shift forks, tab washers, final drive sprockets, return springs, mainshafts and more.
Most parts will fit "traditional" BSA models (singles, twins and triples) including.... BSA A65, A50, A75, A7, A10, B25, C15, B31, B32, etc up to 1972.
- We stock trusted brands from SKF, BSA (NOS), Koyo, Torrington, Cov-Seal, FAG and more..
- All orders placed in the United States (lower 48) are eligible for free shipping - always
- International shipping welcome on all parts orders
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Triumph / BSA Singles Kickstart Quadrant Needle Bearing - 70-8005 - C15 / B25 / B44 $ 26.95 USD -
Triumph / BSA Singles Kickstart Return Spring (1) 57-4338 - B25 / C25 / B44 / TR25W $ 16.95 USD -
Triumph / BSA Slotted Cap Installation Removal Tool $ 19.95 USD -
Triumph / BSA Triples Clutch Pull Rod Bearing (1) - 57-3717 $ 89.95 USD -
Triumph / BSA Twins Clutch Pushrod Bushing (1) 57-3988 - A65 / T100 / T120 / T140 $ 6.25 USD -
Triumph / BSA Twins Gear Box High Gear Oil Seal 57-0946T $ 9.95 USD -
Triumph / BSA Twins Mainshaft Gearbox Bearing (1) - 60-3552 T120 / TR6 / A65 $ 39.95 USD -
Triumph / BSA Twins Mainshaft Tab Washer (1) - 57-1046 $ 3.95 USD -
Triumph / BSA Unit Singles Gear Box Sprockets - C15 / B40 / B44 / B50 - Choose Size from $ 29.95 USD -
Triumph / BSA Unit Singles Kickstart Shaft Oil Seals - Choose Seal Type from $ 12.95 USD -
Triumph 650 4-Speed High Gear Oil Seal (1) - 57-0946M $ 17.95 USD -
Triumph BSA 5-Speed Gearbox Sprocket Nut 57-4396 1973-82 T140 T150 T160 TR7 $ 18.95 USD -
Triumph BSA Wheel Bearing Dust Cover / Mainshaft Bearing Circlip 57-0280 $ 4.95 USD -
Triumph Camplate Index Plungers (1) - Choose Plunger Type / Application from $ 29.95 USD -
Triumph Cub Kickstart Quadrant Shafts (1) - Choose Shaft Type from $ 139.95 USD -
Triumph Gear Box Thrust Washer / Bushing Locating Dowel (1) - 57-0912 $ 6.95 USD -
Triumph Gearbox Drain Plug Fiber Washers (1) - 57-1257 -1963-80 - 6T / T120 / T140 / TR7 $ 0.95 USD -
Triumph High Gear Sprocket Nut Spanner Tools (1) - Choose Tool Application from $ 38.95 USD -
Triumph Layshaft Bronze Thrust Washers (1) 57-1607 - 500 / 650 / 750 $ 18.95 USD -
Universal Fiber Washers (5) - 24-0036 - 1/4X1/2X1/16 $ 3.95 USD