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MOOG parts come greased from the factory, but should also be greased at the time of installation. After installation, MOOG recommends greasing these parts at each oil change for the best service life.
Out of grease? No problem we've got you covered with this Mystik Multi-Purpose Grease tube refill.
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Moog fulfills their warranty through their individual dealers. That means that in order to receive warranty support, you will have to refer back to the original dealer you purchased the part from. Be sure to check the dealer's warranty support before you buy the part to make sure that they will properly support the warranty. If a dealer will only refer you back to the manufacturer in order to receive warranty support, then you may not actually have any warranty at all.
Part of our warranty process includes reviewing evidence of the defect provided by the customer. This is easily accomplished by providing video or images of the defective part so our staff can verify the claim and move forward with the warranty process. This removes the necessity of shipping the part back to our facility at the customer's expense.
WARRANTY:
Moog Premium Steering Components carry a Limited Lifetime Warranty. Moog R-Series Control Arms, Hub Assemblies, and Knuckle Assemblies carry a 3 Year or 36,000 mile Warranty (whichever occurs first). Above warranties are based on customers who own a car, van, SUV or light truck (less than 8,000 lbs. or 3,625 kilograms).
Moog warranties their parts to be free of defects in materials and/or workmanship during these timeframes as measured from the date of purchase.
If a Moog part should fail due to materials or manufacturing defect while under warranty, we will provide a replacement of the part upon return of the defective part.
Wearable RUBBER parts are not covered under warranty (Dust boots, bushings, bump stops, etc.)
Upper Ball Joints | 2000-2006 Toyota Tundra
The job of a ball joint is to allow necessary movement of the wheel during different circumstances when going over bumpy roads and off-roading. When vehicles like the Toyota Tundra and the Sequoia go through a lot of stress from carrying heavy loads and off-roading, the ball joints provided by the factory begin to wear down and emit clanking noises, cause steering problems, and uneven tire wear. These k90255 Upper Ball Joints are built to prevent these problems and provide a long term replacement for those factory-made ball joints. Its features help prevent these issues like the heat-treated stud, the slotted gusher bearing, the pressed-in cover plate, and the easily greaseable design.


What Happens when Old Ball Joints Fail?
The k90255 Ball Joint is built to resist the issues that a failing original ball joint could cause. The heavy loads and bumpy roads that vehicles like the Toyota Tundra go through cause strain on the ball joints. Also, the grease inside the ball joint may start to dry out and debris getting in the ball joint may also cause it to wear out. The vehicle starts to experience wheel tilt which causes the tires to wear out unevenly and the vehicle starts to feel sluggish in its steering. These problems have the potential to be very dangerous to the driver. The best way to prevent these problems that are caused by a damaged ball joint is to replace it with a new, better-built ball joint.
The Features of the Ball Joint
The heat-treated stud is durable enough to resist the overall strain of the vehicle while also being flexible enough to bend when the vehicle requires it. The ball joint’s greasable design allows for the vehicle to easily be re-greased when it is needed. Also, the slotted gusher bearing lets the grease move freely within the ball joint allowing it to be easily lubricated and the debris within to be flushed out. Finally, it also has a pressed-in cover plate that seals the debris away from the interior. These features allow the ball joint to have a long lifespan and work past the limits of a normal ball joint.
So, if you are looking for a replacement ball joint that will last much longer and resist much more, pick up a k90255 Upper Ball Joint today!


Product Reviews for Front Upper Ball Joint | Toyota 4Runner | Moog-K90255
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MOOG moog-k90255
starstarstarstar_borderstar_border" Review 1 Year Later "
I was sent 2 different ball joints, I put one on the truck and traded the other for the one I needed. Truck has been totaled but before it was totaled the ball joints worked fine.
verified_user Verified Buyer - Daniel Gibbons - . MOOG moog-k90255 - 3 out of 5starstarstarstarstar" Review 1 Year Later "
I am very happy with the quality and will always choose Moog.
verified_user Verified Buyer - Michael Gage - . MOOG moog-k90255 - 5 out of 5starstarstarstar_borderstar_border" Review 2 Years Later "
Both boots are torn so I have to keep pumping them with grease, but mechanically they seem ok still.
verified_user Verified Buyer - Brandon Bleakney - . MOOG moog-k90255 - 3 out of 5starstarstarstarstar" Great product and service. "
Thanks for the great parts. Installation went well and the parts have been working great since. Much better ride now and good package deal for the tie rod ends and upper/lower ball joints.
verified_user Verified Buyer - Micah Remy - . MOOG moog-k90255 - 5 out of 5compare_arrows Compare with Similar Parts
question_answer Customer Questions and Answers
- Question:
- Can I purchase just the boot of the moog-k90255?
- Answer:
- Unfortunately no, Moog does not offer their dust boots separately
- Question:
- Does Moog offer just the ball joints dust boots for the moog-k90255?
- Answer:
- Unfortunately Moog does not offer just the dust boots for their ball joints or tie rod ends.
- Question:
- Does Moog Part k90255 include a pair or is it just one part?
- Answer:
- Moog Part k90255 is sold individually and not as a pair.
- Question:
- What is included in the Moog Front End Steering Rebuild part k90255.
- Answer:
- Moog Front End Steering Rebuild part k90255 includes what you see in the picture.
- Question:
- Can I just get the dust boot for the ball joint number moog-k90255
- Answer:
- Unfortunately Moog does not sell their dust boots alone. We do have universals we could try but you would have to provide the measurements to us to match a boot up for you.
- Question:
- Does k90255 come with new dust boots like pictured?
- Answer:
- Yes, part number k90255 will come with the new dust boot.
- Question:
- How do you grease the ball joint K90255?
- Answer:
- We have a blog describing in detail how to grease ball joints. Here the link for the blog https://www.suspension.com/blog/how-to-grease-ball-joints/ you can also check out Moog installation on greasing the ball joints https://fme-cat.com/livedocs/DYK K10_103_ENG-R.pdf. If you have more questions you can also call us at 888-406-2330 ...see more