You managed to wear out a Keller ball joint — which takes some doing, and does not mean buying a new one. The threaded housing in your A-arm is almost certainly still good. What wears is the cup, the boot and the pin, and this kit replaces exactly those three with the same parts your joint was originally built with, at roughly half the cost of a replacement joint.
Six versions cover the Can-Am Keller range, standard and Mega, upper and lower. Match the kit to your joint's part number rather than to your machine.
Key Features
- Includes a new cup, boot and 4340 heat-treated pin
- All the same parts that came with your Keller ball joint originally
- Roughly half the price of buying a new joint
- Six kits covering standard and Mega Can-Am Keller joints, both positions
- Keeps the threaded housing in the A-arm — useful if your arms were machined for Mega joints
- Made in USA
Built To Solve: Worn Keller Ball Joints on Can-Am Maverick X3 and Maverick R Machines
- Play developing in a joint after years of desert and dune miles
- A gritty or notchy feel when the stud is moved by hand
- A joint contaminated after a boot tore and let water and grit in
- Front-end clunk returning on a machine whose joints were sound last season
- Facing the price of new joints when only the internals are worn
- Not wanting to disturb A-arms that were machined for Mega housings
Best For: Can-Am Owners Servicing Keller Joints They Already Run
- Maverick X3 owners running standard or Mega Keller joints
- Maverick R owners — the same Keller joints are used on that machine
- Riders on machined A-arms who want to rebuild rather than remove
- Desert and dune riders putting sustained load through the front end
- Owners who chose Keller because the joints come apart for service
If a boot has split but the joint is still tight, the Keller boot replacement kit reseals it for less. If the housing itself is damaged, you need a new joint rather than a rebuild.
Specifications
- Kit contents: new cup, new boot, and 4340 heat-treated pin
- Components are the same parts originally supplied with the Keller ball joint
- Sold as: one kit per Keller joint — selected by joint part number
- Manufacturer Part Number: BJK-CA-X3L-PK, BJK-CA-X3U-PK, BJKM-CA-ML-PK, BJKM-CA-MU-PK, BJK-CA-GSDOL-PK, BJK-CA-GSDOU-PK
Fitment
Matched to your ball joint, not to your machine. Read the part number off the joint before ordering — Keller reuses the same joints across several Can-Am machines.
- BJK-CA-X3L-PK — services the Keller Can-Am Maverick X3 lower joint, BJK-CA-X3L. Keller also supplies this joint for the Maverick Trail, Maverick R and Defender HD10
- BJK-CA-X3U-PK — services the Keller Can-Am Maverick X3 upper joint, BJK-CA-X3U, across the same machines
- BJKM-CA-ML-PK — services the Keller Maverick X3 Mega lower joint, BJKM-CA-ML
- BJKM-CA-MU-PK — services the Keller Maverick X3 Mega upper joint, BJKM-CA-MU
- BJK-CA-GSDOL-PK — services the Keller lower joint BJK-CA-GSDOL, which Keller supplies for the Can-Am Outlander and Renegade
- BJK-CA-GSDOU-PK — services the matching upper joint, BJK-CA-GSDOU
These kits are for Keller ball joints only — they do not service OEM or other aftermarket joints. Fitment is not guaranteed on joints not listed above.
FAQ
What is in the rebuild kit?
A new cup, a new boot and a 4340 heat-treated pin — all the same parts that came with your Keller ball joint originally. Those are the components that wear; the threaded housing generally is not.
How do I know which of the six kits I need?
By the part number on the joint. Position matters, standard and Mega take different kits, and Keller reuses the same X3 joints across several Can-Am machines — so the number is far more reliable than your model name.
Does this cover Maverick R joints?
Yes. The Maverick R uses the same Keller joints as the Maverick X3, so the X3 kits service them. Match the kit to the part number on the joint you are rebuilding.
Do I have to remove the joint from the A-arm?
The threaded housing stays in the arm; you are replacing what sits inside it. That is particularly worth having if your A-arms were machined to accept Mega housings, since rebuilding avoids disturbing that work. Keller does not publish a step-by-step procedure, so allow time if it is your first.
Is rebuilding worth it against buying new?
Keller prices the kit at roughly half a new joint and you keep the housing, which is the precisely threaded and expensive part. Across a front end the saving is substantial.
My boot tore but the joint feels tight. Do I need this?
Probably not. With no play and smooth stud movement, the Keller boot replacement kit is the right and cheaper repair. Use a rebuild kit once the internals have actually worn.
Why Keller
The rebuildable design is the whole argument for Keller. A joint that threads into the A-arm and comes apart for service is one you fix rather than replace, and this kit is what makes that real — the same cup, boot and pin the joint was assembled with, sold on their own.
Service Your Can-Am Keller Joints Before They Let Go
Before ordering, read the part number off the joint and match it to the list above — standard and Mega, upper and lower, all take their own kit. Order one kit per joint you plan to rebuild. If the boot is the only problem, the Keller boot replacement kit is the right part instead. Riders running machined A-arms for Mega joints often keep kits on hand, since rebuilding in place is far less work than pulling housings.
Installation Video
Official SuperATV installation walkthrough with Todd Keller: How To Install Keller Ball Joints
