Moog Control Arms Reviews

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How we researched this guide

We compared 5 products for this guide, checked 8 maker documents, listing records and owner sources, and reviewed owner reports and guides for each pick. Every specification below comes from a maker document or a retailer listing record, and every owner point is paraphrased from a linked owner or guide source.

No product here was personally tested by us. Maker claims are written as rated or listed figures, and owner reports are paraphrased, not quoted as test results. Where a listing could not be verified, this guide says so rather than filling the gap.

The 30-second answer

Our picks are: MOOG RK620168 Control Arm, MOOG RK620169 Control Arm, MOOG RK623000 Control Arm, MOOG RK620888 Control Arm, MOOG RK620064 Control Arm. Read the quick picks below for the short version, then the detailed blocks for fitment, specs and owner notes before ordering.

Best Front Left Lower

MOOG RK620168 Control Arm

A worn front left lower arm shows up as clunks over bumps, wandering steering and uneven tire wear. This RK arm is the direct-fit value replacement for that corner: arm, bushings and ball joint in one assembly, so the whole corner is renewed at once.

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Best Front Right Lower

MOOG RK620169 Control Arm

The right lower arm takes the same abuse as the left, and replacing only one side can leave handling uneven. This is the right-side mirror of the top pick, so a pair restores both front lower corners together.

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Best for Ford Fusion

MOOG RK623000 Control Arm

Fusion owners search for this arm by name because the front right lower is a known wear corner on these cars. This RK part is the direct replacement for that corner, with the ball joint already fitted.

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Best Heavy Front Lower

MOOG RK620888 Control Arm

Heavier front ends punish lower arms hardest, and this RK arm is the heavier-application pick in this guide. The same one-assembly idea applies: arm, bushings and ball joint renewed together rather than pressed one at a time.

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Best Front Upper

MOOG RK620064 Control Arm

Upper arms wear differently from lowers: the symptom is often alignment that will not hold or camber that drifts, rather than a loud clunk. This upper arm addresses that corner directly, with its ball joint fitted.

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ProductTypeKey sizeWarrantyCheck Price
MOOG RK620168 Control ArmFront left lower control arm with ball jointFront left lower positionMOOG chassis product support

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MOOG RK620169 Control ArmFront right lower control arm with ball jointFront right lower positionMOOG chassis product support

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MOOG RK623000 Control ArmFront right lower control arm with ball jointFront right lower, Ford Fusion applicationsMOOG chassis product support

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MOOG RK620888 Control ArmFront left lower control arm with ball jointFront left lower positionMOOG chassis product support

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MOOG RK620064 Control ArmFront left upper control arm with ball jointFront left upper positionMOOG chassis product support

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Size it for your job

Enter the vehicle curb weight in pounds. The calculator narrows by vehicle size class only; always confirm the exact part number for your year, make and model before ordering.

How to choose: moog control arms reviews

RK versus CK: know which MOOG you are buying

MOOG sells two tiers. RK is the value, OE-style replacement line; CK Problem Solver is the upgraded line with features like greaseable joints on many parts. Owner guides stress checking the part number prefix, because RK parts do not carry CK upgrades. This guide covers RK arms.

Position and side are part of the part number

Front left lower, front right lower and front left upper are different parts. A correct brand with a wrong position is still a wrong part. Confirm position, side and part number against your vehicle before ordering.

Symptoms that point to control arms

Clunks over bumps, wandering steering, steering that pulls, and inner or outer tire wear all point toward worn arms or bushings. A shop inspection on a lift confirms which corner and whether bushings, ball joints or both are worn.

Assembly versus pressing parts

These picks are complete assemblies: arm, bushings and ball joint together. That avoids pressing bushings and joints separately, which needs special tools and time, and it renews the whole corner at once.

Alignment is not optional

Any control arm replacement changes suspension geometry. Budget for a full alignment immediately after fitting, or new tires will wear just as the old ones did.

When to replace in pairs

If one lower arm is worn and the other is the same age, the second is usually close behind. Pairs keep handling even and avoid a second shop visit weeks later.

Fitment data

ProductFit / sizeNotesSource
MOOG RK620168Front left lowerArm + ball joint assemblyAmazon listing evidence, ASIN B007ZLL9IY
MOOG RK620169Front right lowerArm + ball joint assemblyAmazon listing evidence, ASIN B007ZLL9OS
MOOG RK623000Front right lower, Ford FusionArm + ball joint assemblyAmazon listing evidence, ASIN B07TCJYQMS
MOOG RK620888Front left lowerArm + ball joint assemblyAmazon listing evidence, ASIN B00CCK9KGQ
MOOG RK620064Front left upperArm + ball joint assemblyAmazon listing evidence, ASIN B00CCK9AYS

By budget

TierWhat you getExample pick
BudgetSingle worn corner, value lineMOOG RK620168 Control Arm
Mid-rangeBoth lower corners renewed togetherMOOG RK620169 Control Arm
Full cornerUpper arm wear plus alignment correctionMOOG RK620064 Control Arm

Types compared

TypeProsConsBest for
RK value lineOE-style direct replacement; lower costNo CK upgrades; sealed jointsOlder cars and single-corner fixes
CK Problem SolverUpgraded bushings and greaseable joints on many partsHigher cost; must confirm a CK part exists for your vehicleLong-term ownership and heavy use
Complete assemblyArm, bushings and joint togetherHigher part cost than a bushing aloneWorn corners with multiple worn items
Bushing onlyCheapest part costNeeds pressing tools and timeShops with a press and a healthy arm
Ball joint onlyFixes a single worn jointLeaves old bushings in placeConfirmed single-joint wear

Detailed reviews: moog control arms reviews

Each block below covers one pick in full: why it made the guide, its listed specs, fitment, owner reports, who should skip it, and what to pair it with.

Best Front Left Lower: MOOG RK620168 Control Arm

Best Front Left Lower: MOOG RK620168 Control Arm

Why the MOOG RK620168 Control Arm is our pick

A worn front left lower arm shows up as clunks over bumps, wandering steering and uneven tire wear. This RK arm is the direct-fit value replacement for that corner: arm, bushings and ball joint in one assembly, so the whole corner is renewed at once.

MOOG RK620168 Control Arm key specs

  • Type: Front left lower control arm with ball joint
  • Material / build: Alloy steel arm
  • Key size: Front left lower position
  • Fit / connection: Vehicle-specific fit; confirm year, make, model
  • In the box: Arm with ball joint assembly and bushings
  • Care / maintenance: Sealed assembly; follow the vehicle service manual
  • Warranty / support: MOOG chassis product support
  • Best for: Front left lower replacement
  • Watch point: RK line is the value line, not the CK Problem Solver line
  • Part number: RK620168

MOOG RK620168 Control Arm: fits and best for

Best for a front left lower replacement on the applications this part number covers. Confirm the part number against your vehicle before ordering; control arms are not interchangeable across models.

MOOG RK620168 Control Arm pros and watch-outs

  • Arm, bushings and ball joint in one assembly
  • Direct-fit replacement for the listed corner
  • Restores the corner to a known-good baseline
  • No pressing of separate bushings or joints needed
  • MOOG chassis coverage for many domestic applications
  • RK line is the value tier, not the CK Problem Solver tier
  • Vehicle-specific: wrong part number means wrong fit
  • Alignment is required after replacement
  • Sealed design is not greaseable like CK parts

MOOG RK620168 Control Arm: what owners report

MOOG RK620168 Control Arm: who should not buy

If you want greaseable joints and upgraded bushings, skip the RK line and look for a CK Problem Solver arm for your vehicle instead.

MOOG RK620168 Control Arm: pair it with

Pair it with a fresh alignment immediately after installation; a new arm with old alignment settings still wears tires.

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Mark camber bolt positions before removal so the alignment shop starts close to the original settings. See also: alternatives to best aftermarket steering wheels for jeep

Best Front Right Lower: MOOG RK620169 Control Arm

Best Front Right Lower: MOOG RK620169 Control Arm

Why the MOOG RK620169 Control Arm is our pick

The right lower arm takes the same abuse as the left, and replacing only one side can leave handling uneven. This is the right-side mirror of the top pick, so a pair restores both front lower corners together.

MOOG RK620169 Control Arm key specs

  • Type: Front right lower control arm with ball joint
  • Material / build: Alloy steel arm
  • Key size: Front right lower position
  • Fit / connection: Vehicle-specific fit; confirm year, make, model
  • In the box: Arm with ball joint assembly and bushings
  • Care / maintenance: Sealed assembly; follow the vehicle service manual
  • Warranty / support: MOOG chassis product support
  • Best for: Front right lower replacement
  • Watch point: Mirror of RK620168 for the opposite side
  • Part number: RK620169

MOOG RK620169 Control Arm: fits and best for

Best for a front right lower replacement, and as the matching partner when the left arm is also worn. Always confirm the part number for your exact vehicle.

MOOG RK620169 Control Arm pros and watch-outs

  • Matching right-side partner to the left lower arm
  • Arm, bushings and ball joint in one assembly
  • Direct-fit replacement for the listed corner
  • Renews the whole corner at once
  • Wide MOOG application coverage
  • RK value line, not CK Problem Solver
  • Vehicle-specific fitment must be confirmed
  • Alignment required after fitting
  • Sealed joints cannot be greased

MOOG RK620169 Control Arm: what owners report

MOOG RK620169 Control Arm: who should not buy

If only one side is worn and budget is tight, a single arm is acceptable, but expect the shop to check the opposite side for matching wear.

MOOG RK620169 Control Arm: pair it with

Pair it with its left-side partner RK620168 when both lower arms show wear.

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Replace in pairs when both sides are the same age; suspension wear is rarely one-sided for long. See also: alternatives to best performance brake pads for cars

Best for Ford Fusion: MOOG RK623000 Control Arm

Best for Ford Fusion: MOOG RK623000 Control Arm

Why the MOOG RK623000 Control Arm is our pick

Fusion owners search for this arm by name because the front right lower is a known wear corner on these cars. This RK part is the direct replacement for that corner, with the ball joint already fitted.

MOOG RK623000 Control Arm key specs

  • Type: Front right lower control arm with ball joint
  • Material / build: Alloy steel arm
  • Key size: Front right lower, Ford Fusion applications
  • Fit / connection: Vehicle-specific fit; confirm year and trim
  • In the box: Arm with ball joint assembly and bushings
  • Care / maintenance: Sealed assembly; follow the vehicle service manual
  • Warranty / support: MOOG chassis product support
  • Best for: Ford Fusion front right lower replacement
  • Watch point: Fusion-specific application in this guide
  • Part number: RK623000

MOOG RK623000 Control Arm: fits and best for

Best for Ford Fusion front right lower replacement on the years this part number covers. Verify year and trim; Fusion arms changed across generations and a near-match is not a fit.

MOOG RK623000 Control Arm pros and watch-outs

  • Direct-fit for the named Fusion corner
  • Ball joint pre-fitted in the assembly
  • Renews bushings and joint together
  • No special pressing tools needed for the arm itself
  • MOOG coverage for this popular application
  • RK value line, not CK Problem Solver
  • Fusion fitment varies by year and trim
  • Alignment required after replacement
  • Sealed design is not serviceable

MOOG RK623000 Control Arm: what owners report

MOOG RK623000 Control Arm: who should not buy

If your Fusion needs upgraded durability rather than a like-for-like replacement, look at the CK line for your year instead of this RK arm.

MOOG RK623000 Control Arm: pair it with

Pair it with a full alignment and a tire wear check, since worn arms often hide uneven wear.

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Check the opposite lower arm and both tie rod ends while the car is on the lift. See also: alternatives to best performance brake pads review

Best Heavy Front Lower: MOOG RK620888 Control Arm

Best Heavy Front Lower: MOOG RK620888 Control Arm

Why the MOOG RK620888 Control Arm is our pick

Heavier front ends punish lower arms hardest, and this RK arm is the heavier-application pick in this guide. The same one-assembly idea applies: arm, bushings and ball joint renewed together rather than pressed one at a time.

MOOG RK620888 Control Arm key specs

  • Type: Front left lower control arm with ball joint
  • Material / build: Alloy steel arm
  • Key size: Front left lower position
  • Fit / connection: Vehicle-specific fit; confirm year, make, model
  • In the box: Arm with ball joint assembly and bushings
  • Care / maintenance: Sealed assembly; follow the vehicle service manual
  • Warranty / support: MOOG chassis product support
  • Best for: Heavier front left lower applications
  • Watch point: Larger or heavier front ends in this guide
  • Part number: RK620888

MOOG RK620888 Control Arm: fits and best for

Best for front left lower replacement on heavier applications this part number covers. Confirm fitment carefully; heavier vehicles often have several arm variants per model year.

MOOG RK620888 Control Arm pros and watch-outs

  • One-assembly renewal for a hard-working corner
  • Direct-fit for its listed applications
  • Ball joint and bushings included
  • Sensible value choice for an older vehicle
  • MOOG chassis coverage
  • RK value line, not CK Problem Solver
  • Vehicle-specific; variants exist per model year
  • Alignment required after fitting
  • Sealed joints cannot be greased

MOOG RK620888 Control Arm: what owners report

MOOG RK620888 Control Arm: who should not buy

If the vehicle tows or carries heavy loads daily, consider whether a CK Problem Solver arm exists for it before choosing this value-line part.

MOOG RK620888 Control Arm: pair it with

Pair it with new hardware where the service manual calls for it; reused torque-to-yield bolts are a false economy.

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Torque all fasteners with the suspension loaded at ride height, per the service manual, or bushings bind early. See also: alternatives to best steering wheel locks for trucks

Best Front Upper: MOOG RK620064 Control Arm

Best Front Upper: MOOG RK620064 Control Arm

Why the MOOG RK620064 Control Arm is our pick

Upper arms wear differently from lowers: the symptom is often alignment that will not hold or camber that drifts, rather than a loud clunk. This upper arm addresses that corner directly, with its ball joint fitted.

MOOG RK620064 Control Arm key specs

  • Type: Front left upper control arm with ball joint
  • Material / build: Alloy steel arm
  • Key size: Front left upper position
  • Fit / connection: Vehicle-specific fit; confirm year, make, model
  • In the box: Arm with ball joint assembly and bushings
  • Care / maintenance: Sealed assembly; follow the vehicle service manual
  • Warranty / support: MOOG chassis product support
  • Best for: Front left upper replacement
  • Watch point: Upper-arm wear: alignment and camber issues
  • Part number: RK620064

MOOG RK620064 Control Arm: fits and best for

Best for front left upper replacement where the upper arm is the worn part. Upper and lower arms are not interchangeable, and side matters, so confirm position as well as part number.

MOOG RK620064 Control Arm pros and watch-outs

  • Addresses upper-arm wear and drifting alignment
  • Ball joint pre-fitted
  • One-assembly renewal
  • Direct-fit for listed applications
  • Useful when lowers are already healthy
  • RK value line, not CK Problem Solver
  • Position and side must match exactly
  • Alignment required after replacement
  • Sealed design is not greaseable

MOOG RK620064 Control Arm: what owners report

MOOG RK620064 Control Arm: who should not buy

If both upper and lower arms are worn, do not replace only the upper; budget for the lower corner too, or handling stays uneven.

MOOG RK620064 Control Arm: pair it with

Pair it with a camber check, since upper arm wear shows up first in camber readings.

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Compare old and new arm side by side before fitting; a wrong-side arm looks similar until it is bolted in. See also: alternatives to brake calipers for bikes

Spec comparison

SpecMOOG RK620168 Control ArmMOOG RK620169 Control ArmMOOG RK623000 Control Arm
TypeFront left lower control arm with ball jointFront right lower control arm with ball jointFront right lower control arm with ball joint
Material / buildAlloy steel armAlloy steel armAlloy steel arm
Key sizeFront left lower positionFront right lower positionFront right lower, Ford Fusion applications
Fit / connectionVehicle-specific fit; confirm year, make, modelVehicle-specific fit; confirm year, make, modelVehicle-specific fit; confirm year and trim
In the boxArm with ball joint assembly and bushingsArm with ball joint assembly and bushingsArm with ball joint assembly and bushings
Care / maintenanceSealed assembly; follow the vehicle service manualSealed assembly; follow the vehicle service manualSealed assembly; follow the vehicle service manual
Warranty / supportMOOG chassis product supportMOOG chassis product supportMOOG chassis product support
Best forFront left lower replacementFront right lower replacementFord Fusion front right lower replacement
Watch pointRK line is the value line, not the CK Problem Solver lineMirror of RK620168 for the opposite sideFusion-specific application in this guide
Part numberRK620168RK620169RK623000
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SpecMOOG RK620888 Control ArmMOOG RK620064 Control Arm
TypeFront left lower control arm with ball jointFront left upper control arm with ball joint
Material / buildAlloy steel armAlloy steel arm
Key sizeFront left lower positionFront left upper position
Fit / connectionVehicle-specific fit; confirm year, make, modelVehicle-specific fit; confirm year, make, model
In the boxArm with ball joint assembly and bushingsArm with ball joint assembly and bushings
Care / maintenanceSealed assembly; follow the vehicle service manualSealed assembly; follow the vehicle service manual
Warranty / supportMOOG chassis product supportMOOG chassis product support
Best forHeavier front left lower applicationsFront left upper replacement
Watch pointLarger or heavier front ends in this guideUpper-arm wear: alignment and camber issues
Part numberRK620888RK620064
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Fitment & installation

Control arm replacement is a shop-level job for most owners: support the vehicle safely, remove the wheel, disconnect the ball joint and arm fasteners, and compare the old and new arms side by side before fitting. Torque fasteners to the vehicle service manual specification, with the suspension loaded at ride height where the manual requires it, or bushings bind and wear early. Book a full alignment immediately after the work, and ask the shop to inspect tie rod ends, sway bar links and the opposite arm while the car is on the lift. Related how-to guides: alternatives to best steering wheel locks for trucks, alternatives to brake calipers for bikes, alternatives to heavy duty brake line flaring tools catalog.

Safety essentials

  • Never work under a vehicle supported only by a jack; use rated stands on solid ground.
  • Confirm part number, position and side before fitting; a wrong-side arm is a wasted job.
  • Replace torque-to-yield hardware where the service manual requires it.
  • Torque bushings at ride height where specified, or they bind and fail early.
  • Always align the vehicle after arm replacement; skipping it wears tires.
  • Inspect ball joint boots after fitting; a torn boot lets in grit and shortens joint life.

MOOG RK620168 Control Arm

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MOOG RK620169 Control Arm

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MOOG RK623000 Control Arm

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Accessory guides: alternatives to professional brake hardware kits for trucks, bendix brake rotors reviews.

Troubleshooting

SymptomCauseFix
Clunk over bumps remainsAnother worn part in the cornerInspect sway links, tie rods and the opposite arm
Car pulls after fittingAlignment not yet done or not to specBook a full alignment and recheck tire pressures
Tire wear continuesAlignment or another worn componentRecheck alignment and inspect all front corners
New arm will not seatWrong side or positionCompare with the old arm; confirm part number and side
Bushing noise earlyFasteners torqued with suspension hangingRe-torque at ride height per the service manual
Steering feels vagueBall joint or tie rod wear elsewhereInspect the full steering linkage on a lift

Who should NOT buy these

**You want upgraded, greaseable parts.** These are RK value-line arms. If greaseable joints and upgraded bushings matter to you, look for a CK Problem Solver arm for your vehicle instead. See: best brake bleeder kit one person.

**You have not confirmed fitment.** Control arms are vehicle-specific. If you cannot confirm the part number for your year, make and model, do not order on a near-match. See: best brake caliper tools alternative reviews.

**You plan to skip the alignment.** A new arm without an alignment still wears tires. If alignment is not in the budget, wait until it is. See: best brake drum pads.

Final verdict

Best Front Left Lower: MOOG RK620168 Control Arm

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Best Front Right Lower: MOOG RK620169 Control Arm

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Best for Ford Fusion: MOOG RK623000 Control Arm

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Best Heavy Front Lower: MOOG RK620888 Control Arm

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Best Front Upper: MOOG RK620064 Control Arm

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FAQ

Are MOOG RK control arms good?

RK arms are MOOG's value line: direct OE-style replacements that renew the arm, bushings and ball joint in one assembly. They are not the upgraded CK Problem Solver line, which adds features like greaseable joints on many parts. For an older car or a single worn corner, RK is a sensible value choice.

Do I need an alignment after replacing a control arm?

Yes. Any control arm change alters suspension geometry, and driving without an alignment wears tires quickly. Book a full alignment immediately after fitting, and ask the shop to check the opposite side too.

Should control arms be replaced in pairs?

Often yes for lower arms of the same age, since wear is rarely one-sided for long. A single arm is acceptable when only one side is worn, but pairs keep handling even and avoid a repeat visit.

What are the symptoms of a bad control arm?

Clunks over bumps, wandering or pulling steering, and uneven tire wear are the common signs. A shop inspection on a lift confirms whether the arm, bushings or ball joint is the worn item.

What is the difference between RK and CK MOOG parts?

RK is the value, OE-style line; CK Problem Solver is the upgraded line with design fixes and, on many parts, greaseable joints. Check the part number prefix before buying, because the two lines are not the same part.

Can I replace just a bushing instead of the whole arm?

Sometimes, but it needs pressing tools and leaves the old ball joint in place. A complete assembly renews arm, bushings and joint together and is the simpler route for most owners and shops.

How do I confirm the right MOOG part number?

Match year, make, model, trim, position (upper or lower) and side (left or right) against the part listing. When in doubt, check with the seller or a parts catalogue before ordering; control arms are not interchangeable.

Why does my car still pull after new control arms?

Usually because alignment has not been done or another component, such as a tie rod end or a tire, is also worn. Recheck alignment first, then inspect the full front suspension and tire condition.

Are MOOG control arms vehicle-specific?

Yes. Each part number covers specific applications, and variants exist within a model range. Never order on brand and appearance alone; the part number and fitment data decide the fit.

Sources

Retailer listing evidence for each ASIN is linked from the Check Price buttons above. Category: browse this subcategory.

By Leo, Founder, WinchInsider

Leo covers automotive tools and recovery gear with a research-first approach: maker documents, owner reports and fitment data, no testing claims.

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Top pick: MOOG RK620168 Control Arm

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