
Manufacturer Reference: 412-4043C — Brand: PROGRESSIVE SUSPENSION
Series 412 shock absorber with covers, designed for vintage and touring Harley models seeking a robust and adjustable solution. Neat chrome finish, steel body and internal reservoir; the unit is gas charged for consistent damping and controlled response on a daily basis. The spring preload adjustment is made via a 5-position cam, allowing for quick load adaptation according to rider, passenger, or luggage.
Particularly suitable for Harley FXWG, FXST, FXSB 1340 models from 1985–1986 depending on fitment. Note: some listed shock absorbers may be road legal — check the most recent certificate for confirmation. Before installation, check clearances (swingarm/exhaust, chain/belt guard, tyre) — a shock absorber longer or shorter than the OEM may alter the rake angle and travel. For heavy or frequent use near the manufacturer's maximum load, consider the Heavy Duty version.