moog-rk620291 | Front Lower Control Arm | 1998-1999 Buick Riviera

  • moog-rk620291 Front Lower Control Arm And Ball Joint - Driver Side
  • moog-rk620291 Front Lower Control Arm And Ball Joint - Driver Side

Front Lower Control Arm And Ball Joint - Driver Side

Manufacturer: MOOG
Part Number: moog-rk620291
Price: $137.02

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Suggested part for moog-rk620291: moog-rk620292
moog-rk620292 Front Lower Control Arm And Ball Joint - Passenger Side
Front Lower Control Arm And Ball Joint - Passenger Side

Suggested part for moog-rk620291: grease-gun-combo
grease-gun-combo Grease Gun and Multi-Purpose Grease - Fits Moog Zerk Fittings

  • 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.

    Wearable RUBBER parts are not covered under warranty (Dust boots, bushings, bump stops, etc.)

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FitmentFront Lower Control Arm And Ball Joint - Driver Side moog-rk620291 fits these vehicles:

moog-rk620291 | Front Lower Control Arm | 1998-1999 Buick Riviera

2000-2005 Cadillac DeVille
  • Doesn't fit Heavy Duty Suspension
For the passenger side use rk620292

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.

Moog Stamped Arms
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 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, 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 Forged Arms
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.

Fitment for moog-rk620291
MakeModelYear RangePositionDrive WheelQuantity RequiredEngine BaseEngine VINEngine Designation
BuickLeSabre2005-2000Front Left Lower Quantity 1
BuickPark Avenue2005-1998Front Left Lower Quantity 1
BuickRiviera1999-1998Front Left Lower Quantity 1
CadillacDeVille2005-2000Front Left Lower Quantity 1
CadillacSeville2004-1998Front Left Lower Quantity 1
OldsmobileAurora2003-1998Front Left Lower Quantity 1
PontiacBonneville2005-2000Front Left Lower Quantity 1

question_answer Customer Questions and Answers

Moog-RK620291 RK620292 Front Left and Right lower control arms: 2003 Buick Lesabre - are these parts new and are they aluminum or steel?
Part number Moog-RK620291 and Moog-RK620292 are made of Forged Aluminum. We do not sell parts that have been used. These Arms will be new.

Front lower control arms: part #rk620292 and ck620292...what is the difference. same question on rk620291 and ck620291
The Moog rk control arms are the value line. The ball joint may or may not be greaseable and it has a 3 year warranty. The ck series the ball joint will be greaseable and it has a limited lifetime warranty.