Keller ball joints are built to be rebuilt, and on a Teryx that matters. The threaded housing stays in your A-arm; what actually wears is the cup, the boot and the pin. This kit replaces those three with the same components the joint was assembled with, so years of hard miles end in a service rather than a new set of joints.
Three versions cover the Kawasaki Keller range — the standard Teryx joint, the Teryx Mega joint, and the Teryx KRX joint. Match the kit to your joint's part number.
Key Features
- Includes a new cup, boot and 4340 steel heat-treated pin
- The same high-quality parts supplied with your original Keller ball joint
- Roughly half the price of buying a new joint
- Covers standard, Mega and KRX Keller joints
- Keeps the threaded housing in the A-arm
- Made in USA
Built To Solve: Worn Keller Ball Joints on Kawasaki Teryx and KRX Machines
- Play developing in a joint after years of trail and rock 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 noise returning on a machine whose joints were sound last season
- Facing the price of new joints when only the internals are worn
- Wanting a service pack on hand before a long trip
Best For: Teryx and KRX Owners Servicing Keller Joints They Already Run
- Teryx owners running standard or Mega Keller joints
- Teryx KRX owners running the KRX-specific Keller joint
- Rock and trail riders who load the front end at full articulation
- High-hour machines with sound housings and worn internals
- Riders who chose Keller specifically because the joints come apart
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 steel 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-K-TUL-PK, BJKM-K-MTUL-PK, BJK-K-KRX-PK
Fitment
Matched to your ball joint, not to your machine. Read the part number off the joint before ordering.
- BJK-K-TUL-PK — services the Keller Kawasaki Teryx joint, BJK-K-TUL
- BJKM-K-MTUL-PK — services the Keller Kawasaki Teryx Mega joint, BJKM-K-MTUL
- BJK-K-KRX-PK — services the Keller Kawasaki Teryx KRX joint, BJK-K-KRX
Keller also builds a Teryx mud pin joint, BJK-K-TUL-MP. There is no rebuild kit published for it in this range, so if that is the joint you run, contact us before ordering rather than assuming one of the above covers it.
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 steel heat-treated pin — the same parts your Keller joint was built with. Those are the components that wear; the threaded housing generally is not.
How do I know which of the three kits I need?
By the part number on the joint. The standard Teryx joint, the Mega version and the KRX joint each take a different kit, and they are not interchangeable.
Is there a kit for the Teryx mud pin joint?
Keller lists the mud pin joint, BJK-K-TUL-MP, among its Teryx joints but does not publish a matching rebuild kit in this range. We would rather tell you that than sell you a kit that may not fit — get in touch and we will check availability.
Do I have to take the joint out of the A-arm?
The threaded housing stays in the arm; you are replacing what sits inside it. Keller does not publish a step-by-step rebuild procedure on this product, so allow time and work carefully if it is your first one.
Is rebuilding worth it against buying new?
Keller prices the kit at roughly half a new joint, and you keep the housing — the precisely threaded, expensive part. Across a front end the saving adds up quickly.
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 cheaper and correct 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 Teryx Keller Joints Before They Let Go
Before ordering, read the part number off the joint and match it to the list above — standard, Mega and KRX each 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 heading out for multi-day rock trips often keep a kit in the trailer, since a joint that starts feeling gritty on day one is repairable rather than trip-ending.
Installation Video
Official SuperATV installation walkthrough with Todd Keller: How To Install Keller Ball Joints
