Triumph 650 Gearbox Camplate Index Plunger, Spring and Housing Kit 1969-74 PN# 57-2172 57-3660 57-3661 57-3978


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Experiencing clunky shifting or a hard time finding gears or neutral on your Triumph 650 with a 4 speed gearbox? Or wanting to get rid of the flaky leaf spring setup on your 1971-72 gearbox?* This setup is for you! Includes Plunger Housing PN# 57-2172 T2172, Plunger Spring PN# 57-4059 T4059 57-3661 T3661, Plunger PN# 57-3660 T3660 & Washer PN# 57-3978 T3978, correct for 1969-70 Triumph 650 twins, will also fit earlier Triumph Unit Twins which used housing PN# 57-0372 T0372 (which we also stock, see recommended links). Made in the UK by LF Harris

*Replacing the leaf spring shifter involves drilling and tapping your cases. If you are unsure which type shift selector mechanism you have, please call us.


LF Harris motorcycle spares are produced to the highest quality standards possible utilizing original Triumph tooling, dies, factory blueprints & materials combined with modern manufacturing equipment, tolerances & techniques.


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