| Diagram | SWINGING ARM, CENTRE STAND, REAR BRAKE CONTROL |
| Subsystem | suspension rear |
| Listed in parts books | Not catalogued by year yet |
Security bolt, swinging arm (9/16" U.N.F. × 10 1/16")
Swinging arm security bolt, 9/16" U.N.F. x 10 1/16", part number 21-1827.
This is a security bolt for the swinging arm, part number 21-1827. It's the long through-bolt that clamps the swinging arm pivot to the frame, keeping the rear fork assembly located and secure as the swingarm pivots up and down with the rear suspension.
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The catalog lists this one at 9/16" U.N.F. thread with a length of 10 1/16", which is a fairly long bolt consistent with running clear through the pivot area. Our record only ties it to a single model year appearance, 1969, so if you're sourcing one for a different year machine, check the length and thread against what's currently in your swingarm before you order.
This shows up under the SWINGING ARM figure along with CENTRE STAND and REAR BRAKE CONTROL, which tracks with its job holding the rear end of the frame together. Worth checking the condition of the pivot bushings while you have this bolt out, since that's the usual reason for pulling it in the first place.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
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