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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 Lower Control Arm | 2003-2009 Dodge Ram 2500 4WD
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MOOG moog-rk641927
starstarstarstarstar" I would recommend them to my friends "
They fit perfect, but the picture is not the actual part. They no longer come in the dog bone, which is what I was looking for to match the others. I ended up buying both lowers and the new style round seems to be more heavy duty and durable. I would highly recommend them!
verified_user Verified Buyer - Robert Lunney - . MOOG moog-rk641927 - 5 out of 5starstarstarstarstar" Great product and great company to deal with "
Great. Was shipped when they said, easy to install, great people to deal with. Called them told them what I was working on and found exactly what I needed and sent it out. Only thing is a the control arm is not what you get in the picture, it is MOOG but it is a tubed, its not a OEM replacement. Will be coming back and will recommend to friends and family
verified_user Verified Buyer - john hainz - . MOOG moog-rk641927 - 5 out of 5starstarstarstarstar" Rugged...good direct fit "
Only complaint is we also bought upper control arm. The lower control arms were tubular. Wish the uppers were the same way. Had trouble getting the concentric bolt out of the old one but thats not Moogs fault. In NJ uses alot of salt on the road so it was fused in there. We had to torch it out and buy new bolts. Make marks or take a photo of the old bolts before you remove them to you can reset your camber as close as the original.
verified_user Verified Buyer - Dawn Alteria - . MOOG moog-rk641927 - 5 out of 5question_answer Customer Questions and Answers
- Question:
- Does the Front lower control arms come in pairs or are they right or left. or they the same?
- Answer:
- Moog control arms are sold individually. In your case the left and right lower control arms are the same.
- Question:
- What is the hole to hole measurement of the lower control arms?
- Answer:
- Moog rk641927 center to center length is 21.40 inches.
- Question:
- Are the ball joints already pressed in? Or will I need to purchase ball joints separately?
- Answer:
- moog-rk641927 does not have ball joints in the control arms. It has bushings. The ball joints are pressed into the front axle.
- Question:
- Can I get the length from center to center of these control arms? The arms that shops keep sending us are too short.
- Answer:
- The center to center spacing for the eyes are 21.40 inches.
- Question:
- Do these control arms have poly or rubber bushings in them.
- Answer:
- All Moog control arms have rubber bushings.