| Listed in parts books | Not catalogued by year yet |
CLT HUB,BSA 4 SP LRG KEY
A BSA four-speed clutch hub, large key type, as listed under PN 42-3170.
This is a clutch hub listed for BSA four-speed gearboxes, described in the parts records as a large key type. The description points to BSA, not Triumph, so if you're working on a BSA twin with the older-style clutch setup this is the number to check against your parts book.
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We don't have much more detail on file for this one beyond the basic listing. The catalog notes tie it to BSA four-speed clutch hardware, and one other reference ties the same part number to an A10-series spring hub setup, but we can't confirm exact model or year fitment from what we have here.
Give us a call before you order so we can confirm this matches your gearbox and clutch setup. We'd rather get you the right part the first time than have you sending one back.
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