| Listed in parts books | Not catalogued by year yet |
ADJUSTER,BALL END
Ball end clutch adjuster with lock nut, used to set and hold clutch free play on Triumph and BSA twins.
The 57-2159B is a ball end adjuster, the type used in the clutch adjustment mechanism to take up slack in the cable or pushrod linkage. It's a small part but an important one when you're setting clutch free play - the ball end seats into the actuating arm and lets you dial in adjustment without binding.
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This one comes with a lock nut, so once you've got your adjustment set you can lock it down and keep it from creeping out of position as the bike vibrates down the road. It shows up as a common wear item across Triumph and BSA machines that share this style of clutch actuation.
We don't have a lot of catalog history logged on this particular number, but the part itself is straightforward - if you're rebuilding a clutch adjustment mechanism or just found yours worn out and rattling loose, this is the piece you're after. Give us a call if you want to double check it matches what's on your bike before ordering.
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