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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.)
What is the Difference Between Moog R Series and CK Control Arms?
CK, K or RK? We here at Diverse Suspension Technologies get this question a whole lot. If you are putting parts on your vehicle, you want to know exactly what you are installing. It can be hard to do that with all of these letter designations. So here is all that you need to know to clear up the confusion.
Short Answer: R Series is a value-driven replacement part while the CK Series incorporates Moog's premium Problem Solver components for a better than OE upgrade.


CK (K): Moog Problem Solver
Starting with the CK and K. Whether you see a "K" designation or a "CK" designation, you are getting the same part. The CK and K are Moogs Premium line of control arms. Utilizing their "problem solver" technology, these control arms address common factory design issues providing a better than the original replacement for your vehicle. Most CK and K control arms include ball joints that are powder coated metal with gusher bearings giving them a long life. Many of these ball joints are serviceable and have grease fittings. The CK and K arms also have problem solver bushings and a precise fit and form for easy installation.
RK: Moog R Series
The RK series is a more value-driven part. Because there are so many different vehicles both foreign and domestic, Moog has introduced the R-Series arms to provide replacements for a wide range of vehicles. The RK arms have OE fit and form geometry alignment, with pre-installed OE style bushings and most include the ball joints. However, not all RK series ball joints are serviceable like the CK arms. All of the R Series arms have Moog validated construction and design, providing a less expensive alternative.


Type and Warranty
Each line of control arms has Forged Steel, Stamped Steel, or Forged Aluminium arms to provide the best style for your specific vehicle. The Premium CK line has a limited lifetime warranty, and the RK has a 3 year warranty that are both handled through our awesome customer service team at DST. Whether you are looking for a "light on the wallet" OE replacement, or a "premium" control arm upgrade, Moog control arms are a great choice for your vehicle.

Product Reviews for Front Left Upper Control Arm | 07-16 Ford Expedition
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MOOG moog-ck80306
starstarstarstarstar" Review 1 Year Later "
Working very well.
verified_user Verified Buyer - Robert lewis - . MOOG moog-ck80306 - 5 out of 5starstarstarstarstar" Review 1 Year Later "
Exceptional! Just beautiful and perfect. Prices were sooo awesome, good quality parts no issues.
verified_user Verified Buyer - Harvey Ibarra - . MOOG moog-ck80306 - 5 out of 5starstarstarstarstar" Review 1 Year Later "
Exceptional! Just beautiful and perfect. Prices were sooo awesome, good quality parts no issues.
verified_user Verified Buyer - Harvey Ibarra - . MOOG moog-ck80306 - 5 out of 5question_answer Customer Questions and Answers
- Question:
- Can this arm be used?
- Answer:
- Ck80306 is the correct arm for your 11 F150 4x4.
- Question:
- Hi, I put a 2.5 level kit on the front. I have 35x15.50 tires. Will this part help the harsh angle better than the stock control arm?
- Answer:
- moog-ck80306 is an OEM replacement upper control arm. It will not correct the issue you currently have. You need to use an aftermarket tubular control arm that repositions the ball joint.
- Question:
- What is the difference between rk80306 and ck80306 ?
- Answer:
- Copy this link to a Google or Yahoo search: https://www.suspension.com/blog/moog-control-arms-ck-k-or-rk/. When it pops up it will explain the differences between the RK and CK control arms. Disregard all references to the K line. It is no longer ava ailable. ...see more
- Question:
- I leveled my F-150 approximately 2 inches and originally left the stock control arms, but was told that they would eventually wear out the ball joints and arms more rapidly due to the increased angle and stress. I just had the control arms and ball joints replaced. The shop used MOOG RK80308 control arm, which I have read above would be the stock OEM replacement.
- Answer:
- Up to a 2 inch leveling kit would be ok. Anything over that could cause an issue. What happens is the upper ball joint is below the control arm bushings. This causes the ball joint to operate at angles it was not designed to operate. Causes them to f fail faster than none lifted pickups. You need an aftermarket upper control arm that repositions the ball joint. ...see more
- Question:
- These A arms do they come with the bushings or do I need to buy these separately.
- Answer:
- moog-ck80306 comes with the bushings and ball joints installed.
- Question:
- Does the part come as shown with the bushings pressed in? I'm a DIY mechanic and don't have access to a press.
- Answer:
- Moog-ck80306 has the bushings and ball joint installed.
- Question:
- What is the difference between the moog-ck80306 and the moog-rk80306?
- Answer:
- In short, the Ck control arms are the Moog problem solver or premium arms that will have a limited life time. While the RK control arms are more of a direct stock replacement with a 3 year warranty.
- Question:
- Do you have the installation instructions for the dust boot on part number ck80306?
- Answer:
- Yes, you can find the installation instructions for the dust boot on part number ck80306 at https://fme-cat.com/livedocs/DYK11_102_ENG-R.pdf
- Question:
- Is part number ck80306 pre-greased?
- Answer:
- Yes, part number ck80306 does come pre-greased, however, you will still need to grease it after installation.
- Question:
- Is this an OEM replacement?
- Answer:
- Yes, part number moog-ck80306 is an OEM replacement.
- Question:
- Will part number ck80306 fit my 2012 Ford F150 SVT Raptor?
- Answer:
- No, you will need part number RK622934 for the 2012 Ford F150 SVT Raptor.
- Question:
- Does this item come with bushings or do they need to be purchased separately?
- Answer:
- moog-ck80306 has the ball joint and control arm bushings installed.