Turbo power and big hits work the rear suspension hard, and after a few seasons the bushings in a set of aftermarket radius arms start to loosen up. That slop shows up as a vague, wandering rear end and clunks over rough ground. This Radius Arm Rebuild Kit for the Polaris RZR XP Turbo and XP 4 Turbo puts the arms back to like-new condition with a fresh brace plate, a full set of chromoly bushings and every piece of hardware, so you don't have to replace the arms themselves.
Highlights
- 3/16" thick steel brace plate replaces a bent or worn plate
- Zinc-plated chromoly steel bushings resist wear and corrosion
- 8 inner and 8 outer bushings for a complete rebuild
- All hardware included, so nothing gets reused that shouldn't be
- Year-specific kits for 2016 and 2017-2021 machines
Why Rebuild Instead of Replace
The arm tubes themselves rarely wear out. The bushings and the brace plate take the beating. Replacing just those parts brings back a tight, predictable rear end for a fraction of the cost of new arms, and it's a good time to inspect the heims and mounting points while everything is apart.
Choosing the Right Year
The kit comes in two versions: one for 2016 models and one for 2017-2021 models. Pick the year of your machine in the option menu so the bushings and hardware match your arms.
What's in the Box
- (1) Brace plate
- (8) Inner bushings
- (8) Outer bushings
- All hardware
Who It's For and What Pairs Well
It's for XP Turbo and XP 4 Turbo owners running aftermarket radius arms that have seen a few hard seasons. Browse replacement and upgrade arms in RZR XP Turbo radius arms, and matching rear parts in RZR XP Turbo trailing arms.
Fitment
| Year | Make | Model |
|---|---|---|
| 2016-2021 | Polaris | RZR XP Turbo |
| 2016-2021 | Polaris | RZR XP 4 Turbo |
Note: Will not fit with Polaris one piece extreme bumper.
Installation Notes
Support the rear of the machine and remove one arm at a time so you keep your alignment reference. Press the old bushings out, clean the bores and press the new bushings in square. The kit will not fit with the Polaris one-piece extreme bumper.
- source:
- superatv
- satv_url:
- https://www.superatv.com/rebuild-for-superatv-polaris-rzrxpt-radius-arms
- fitment_raw:
- Polaris RZR XP Turbo 2016-2021; Polaris RZR XP 4 Turbo 2016-2021
- desc_status:
- rewritten_2026-10-24
