• moog-rk100321 Rear Upper Control Arm
  • moog-rk100321 Rear Upper Control Arm

Rear Upper Control Arm

Manufacturer: MOOG
Part Number: moog-rk100321


Price: $137.39

Free Shipping! In Stock Ships Immediately

Rear Control Arm - Jeep Compass - MOOG moog-rk100321

FitmentRear Upper Control Arm moog-rk100321 fits these vehicles:
  • 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.


    Moog Premium Steering Components carry a Limited Lifetime Warranty. Moog R-Series Control Arms, Hub Assemblies, and Strut Assemblies carry a 3 Year Warranty.

    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.

Moog Stamped Arms

Moog Control Arms: CK, K, or RK?

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.
Moog Stamped Arms

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 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. 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.
Moog Forged Arms

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 these ball joints are not serviceable like the CK arms. All of the R Series arms have Moog validated construction and design, providing a less expensive alternative.
Moog Stamped Arms

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.

MOOG moog-rk100321

Product Reviews for Rear Control Arm moog-rk100321

MOOG moog-rk100321

5 out of 5 based on 42 user reviews. Write a Review

I liked this product. Had a few problems shipping to Canada but customer service fixed every thing. Very good customer service! Just wished the shipping was faster for the price !!
4 out of 5 - Very good prduct!
Brandon Savoie - . MOOG moog-rk100321

Product Reviews for MOOG Rear Control Arm

I got a Moog box-empty- with a part that did not match the part number on the Moog box. Editors Note. Moog parts are built all over the world. So, they could come from any country. No matter where they are built the part is made to Moogs specifications. A lot of the numbers imprinted on the Moog part does not match the part number on the box. In some cases, Moog uses another manufacturer when their supplies run out.
1 out of 5 - Deceived
Jason Radaker - . MOOG moog-rk642894
Been great bolted right in with no problems but being that it is stamped sheet metal be interested to see how long it last. Editors Note: Stamped steel has been used for many years on vehicles. Depending where you live they will give many years of service. Moog control arms are either powder coated or painted to keep the salt and chemicals used to clear the roads from causing future corrosion from starting.
5 out of 5 - Been great so far bolted right in no problems
Bryce A Carey - . MOOG moog-rk640826
The upper control arm for my BMW is working great I have no issues thank you.
5 out of 5 - Review 1 Year Later
Fabian G McBean - . MOOG moog-rk620627
The replacement part sold by Moog, when compared with other brands, has made me rethink, and I will only by Moog auto parts.
5 out of 5 - Review 1 Year Later
Antonio Lopez - . MOOG moog-rk621376
It was definitely easier to replace the whole control arm than just the bushing that was worn out. Easy two bolt change once the tire was off.
5 out of 5 - Perfect
Caryn Novak - . MOOG moog-rk642901
I loved shopping with suspension.com I ordered the wrong parts at first and they helped me return the old ones and buy the right ones I needed for my car with fast shipping. I will definitely be a return customer, I highly recommend these guys.
5 out of 5 - Great high quality parts
Jose Ware - . MOOG moog-rk100118
5 out of 5 - Excellent Service!
Robert Loewen - . MOOG moog-rk641805
Works great.
5 out of 5 - Review 1 Year Later
herold desilus - . MOOG moog-rk641648
No issues with this part to date however I would like to see an option with poly bushings for example if available.. More modern technology applied for those of us willing to spend a little more on better quality products for our expensive cars. Editors Note: Moog parts are OEM replacement. That means when you replace the component it will give you the same ride and handling characteristics as when the vehicle was new. Poly urethane bushings changes the ride and handling characteristics.
5 out of 5 - Review 1 Year Later
David MacLean - . MOOG moog-rk641519
Good part, we great service.
5 out of 5 - Just like the original part, excellent quality
Albert Struna - . MOOG moog-rk642473

Fitment for moog-rk100321

Customer Questions and Answers

Is the moog-rk100321 adjustable?
Moog-rk100321 is adjustable. The camber adjustment range is + or - 2 degrees.

What is the difference between rk100114 vs rk100321?
Both rear arms are adjustable for camber. The main difference is the way the adjustment is made. The rk100114 adjustment is made by loosening 2 bolts and sliding the arm to adjust camber. The rk100321 is a turn buckle design. You loosen the jam nut a and turn the turn buckle to adjust camber. ...see more