| Also known as | S545 |
| Diagram | Fig. 16 — SWINGING FORK AND SUSPENSION UNITS · ref 9 |
| Subsystem | suspension rear |
| Listed in parts books | 1967–1974 |
Nut
Swinging arm spindle nut, 9/16 x 18 thread, for the rear suspension pivot, PN 21-0545 (S545).
This is the nut that secures the swinging arm spindle on the rear suspension, part number 21-0545, also listed under the older S545 designation. It shows up in the parts book under the SWINGING FORK AND SUSPENSION UNITS heading, so it's doing its work at the pivot point where the rear fork swings on the frame.
Read more
It's a plain nut by description, nothing fancy claimed for it in our records beyond thread size, but it's a part that takes a lot of load and vibration over the years, so a tired or buggered-up nut here is worth swapping when you're in there servicing the swingarm bushings or spindle.
Our catalog data traces this part across appearances from 1967 through 1974. If you're not sure whether it matches your particular swingarm spindle, bring in the old one or give us a call and we'll confirm before you order.
Sorry if we got something wrong here. If you think this information isn't correct, .