On a lifted Polaris RZR XP Turbo with big tires, the snap ring that holds the factory ball joint in place is the weak point; under enough load the joint pushes right out of the arm. Keller Ball Joints get rid of the snap ring entirely. Todd Keller's original two-piece design presses into the arm and locks in with a threaded chromoly housing on the back, so it can't pull through.
Highlights
- 4340 hardened chromoly steel construction
- Two-piece threaded design, no snap ring needed
- Easily adjustable, rebuildable and greaseable
- Robust boot retaining ring keeps water out
- Sold as 1, 2 or 4 ball joints
- Made in the USA
The First Threaded Ball Joint
Keller Ball Joints were the first threaded ball joints on the market. Once the joint is pressed in and the housing is threaded on, it's locked to the arm. That's what makes them the go-to for big lifts, heavy machines and riders who jump.
Built to Be Serviced
Instead of throwing the joint away when it wears, you can adjust it, grease it and rebuild it. The heavy boot retaining ring helps keep water and grit out between services.
Choosing a Quantity
Replacing one worn joint? Pick 1. Doing one side or one axle? Pick 2. Doing all four corners? Pick 4.
What's in the Box
- Keller ball joint(s) in the quantity selected
- Instructions
Who It's For and What Pairs Well
These are for XP Turbo owners running lifts, big tires or aggressive riding. Browse arms in RZR XP Turbo A-arms and more parts in RZR XP Turbo suspension parts.
Fitment
| Year | Make | Model |
|---|---|---|
| 2016-2021 | Polaris | RZR XP Turbo |
| 2016-2021 | Polaris | RZR XP 4 Turbo |
Installation Notes
Press the joint into the arm, thread the housing on from the back and torque it to spec. Grease the joint before the first ride.
- source:
- superatv
- satv_url:
- https://www.superatv.com/polaris-rzr-xp-turbo-keller-ball-joint
- fitment_raw:
- Polaris RZR XP Turbo 2016-2021; Polaris RZR XP 4 Turbo 2016-2021
- install_pdf:
- https://madmin.superatv.com/amfile/file/download/file/7525/product/62990/
- desc_status:
- rewritten_2026-10-24
- sub_brand:
- Keller Performance Products
