Mevotech Control Arm Reviews

How to choose a Mevotech control arm

Choose the tier by use: Original, Supreme, or TTX

Original Grade matches original equipment and suits commuters with standard use. Supreme adds upgraded durability and Labor Saver hardware that simplifies installation, suiting heavier daily use and towing. TTX adds Repel-TEK treatment and sintered bearings for the hardest-use fleets and work trucks. Buying TTX for a commuter wastes money; buying Original Grade for a work truck wastes durability. Match the tier to the vehicle workload.

Decide arm replacement against joint-only replacement

If the arm is bent, rusted, or has worn bushings, the whole arm must be replaced, because bushings and structure cannot be fixed by a joint alone. If only the ball joint is worn and the arm is sound — straight, solid, with good bushings — a joint-only replacement like the TTX TXK9513 is the honest, cheaper repair. Inspect the arm before deciding, since a joint-only fix on a bent arm fails again quickly.

Verify position and side by part number, not by listing metadata

Listing metadata can mislead: Amazon position metadata labels some Mevotech arms here as Rear, while fitment sources give the front position. The CMS50120 is stated here as Front Left Upper from fitment sources, because its mirror CMS50121 is listed as Front Right Upper for Escalade, Astro, K1500, and Tahoe applications. Always verify the part number and side against a fitment source for the exact vehicle before ordering.

Check bushings, hardware, and included parts

Supreme arms advertise Labor Saver hardware, which can simplify installation by including parts that would otherwise be ordered separately. Check what each listing actually includes — bushings, ball joint, hardware — and what must be reused or bought separately. A cheaper arm that needs separate bushings and hardware can cost more in total than a complete Supreme or TTX arm.

Plan alignment after any control arm job

Replacing a control arm changes suspension geometry, so a professional wheel alignment is required after the job, even if the car drives straight. Skipping alignment wears tyres unevenly and can pull the car under braking. Budget the alignment into the job cost, and inspect tyre wear after the first thousand miles for signs of a missed setting.

Respect torque, stands, and spring safety

Control arm work happens under a raised vehicle with suspension components under load. Use stands on level ground, never a jack alone, and follow the vehicle manual for torque figures and for any spring compressor requirement. Control arm bolts must be torqued to the manual figure, and some bushings must be torqued at ride height. Guesswork here is a safety issue, not a shortcut.

This guide sits under BRAKES, SUSPENSION & STEERING and in the Control Arms subcategory.

Mevotech control arm data

Mevotech control arms by budget

Types of Mevotech suspension parts

Detailed reviews

Each block below gives only the specifications the listing, catalogue page, or maker document actually publishes. Unpublished specifications are omitted, and the watch-outs explain what to measure or confirm before you buy.

Best Supreme Upper Arm, Driver Side: Mevotech Supreme CMS50120

Best Supreme Upper Arm, Driver Side

Why the Mevotech CMS50120 is our pick

The CMS50120 is the Supreme driver upper pick: alloy steel construction, driver side, 8.6 lb, sized 13.8 by 16.5 by 5 inches in the listing. Supreme adds upgraded durability over Original Grade plus Labor Saver hardware, which suits heavier daily use and towing better than a basic OE-match arm.

The position needs care. Amazon position metadata labels this arm as Rear, while fitment sources give the front position: its mirror CMS50121 is listed as Front Right Upper for Escalade, Astro, K1500, and Tahoe applications, so the CMS50120 is stated here as Front Left Upper. Verify the part number and side for the exact vehicle before ordering, and do not trust the Rear metadata label. Supreme hardware also reduces the separate fastener hunt that delays many arm jobs.

Mevotech CMS50120 key specs

• Tier: Supreme
• Material: alloy steel
• Side: driver side
• Position: Front Left Upper, per fitment sources
• Mirror part: CMS50121, Front Right Upper per fitment sources
• Weight: 8.6 lb
• Dimensions: 13.8 by 16.5 by 5 in
• Hardware: Labor Saver hardware, per Supreme tier
• Part: CMS50120
• Brand: Mevotech

Mevotech CMS50120: fits and best for

Best for a buyer who needs a Supreme driver upper arm for a vehicle in the Escalade, Astro, K1500, or Tahoe family, verified by part number. It suits heavier daily use and towing. It is not a universal arm, and it is not a joint-only fix.

Mevotech CMS50120 pros and watch-outs

Mevotech CMS50120: what owners report

Mevotech CMS50120: who should not buy

Buyers who have not verified the part number and side, or who need only a ball joint, should not buy this. Verification first, or the joint-only pick, suits those cases better.

Mevotech CMS50120: pair it with

Pair it with a professional alignment after installation and a bushing inspection on the opposite side.

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Best Supreme Heavy Arm: Mevotech Supreme CMS25170

Best Supreme Heavy Arm

Why the Mevotech CMS25170 is our pick

The CMS25170 is the heavy Supreme pick: alloy steel, driver side, 25 lb, sized 27.3 by 17.3 by 8.5 inches in the listing — substantially larger and heavier than the CMS50120. For a larger vehicle or a heavier-duty application within the Supreme tier, that size and weight reflect a bigger arm for bigger loads, with the same upgraded durability and Labor Saver hardware.

The same position caution applies: Amazon position metadata labels this arm as Rear, while this article states position from fitment sources only. Verify the part number, position, and side for the exact vehicle before ordering. A heavy arm ordered for the wrong position is an expensive return. The larger size also suits bigger vehicles whose daily suspension loads exceed what a standard arm is built to carry, and the 25 lb listing weight reflects that heavier construction rather than packaging or a larger box.

Mevotech CMS25170 key specs

• Tier: Supreme
• Material: alloy steel
• Side: driver side
• Position: from fitment sources only, verify before ordering
• Weight: 25 lb
• Dimensions: 27.3 by 17.3 by 8.5 in
• Hardware: Labor Saver hardware, per Supreme tier
• Part: CMS25170
• Brand: Mevotech
• Use: heavier Supreme arm applications

Mevotech CMS25170: fits and best for

Best for a buyer who needs a larger, heavier Supreme driver arm for a bigger vehicle. It suits heavy daily use and towing within the Supreme tier. It is not a universal arm, and position must be verified.

Mevotech CMS25170 pros and watch-outs

Mevotech CMS25170: what owners report

Mevotech CMS25170: who should not buy

Buyers who have not verified position and side, or who need a lighter arm, should not buy this. The CMS50120 or a fitment-checked alternative suits those cases better.

Mevotech CMS25170: pair it with

Pair it with a professional alignment and a torque check per the vehicle manual after installation.

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Best TTX Arm: Mevotech TTX CTXK8708T

Best TTX Arm

Why the Mevotech CTXK8708T is our pick

The CTXK8708T is the TTX pick: sintered steel construction, green finish, 8.2 lb, sized 17.1 by 14 by 4 inches. TTX is Mevotech’s hardest-use tier, with Repel-TEK treatment and sintered bearings for fleets and work trucks that see constant load, rough roads, and long service intervals. For that workload, the TTX premium buys durability a commuter tier cannot offer.

The fitment context helps: the Original Grade counterpart GK8708T is listed by FleetPride for Ford Ranger, Explorer, and Mazda B4000 from 1998 to 2001, front driver upper. That context is for the counterpart part, not a direct fitment claim for the TTX part itself, so the TTX part number must still be verified for the exact vehicle before ordering. Sintered bearings also resist the dust and moisture contamination that shortens plain bearing life on rough daily roads, gravel, and work sites.

Mevotech CTXK8708T key specs

• Tier: TTX
• Material: sintered steel
• Colour: green
• Weight: 8.2 lb
• Dimensions: 17.1 by 14 by 4 in
• Bearings: sintered bearings, per TTX tier
• Treatment: Repel-TEK, per TTX tier
• Counterpart: GK8708T, Original Grade, Ranger, Explorer, B4000 1998-2001 front driver upper per FleetPride
• Part: CTXK8708T
• Brand: Mevotech

Mevotech CTXK8708T: fits and best for

Best for a fleet or work-truck buyer who wants the hardest-use tier for constant load and rough use. It suits vehicles whose arms see far more than commuter duty. It is not a budget commuter arm, and fitment must be verified.

Mevotech CTXK8708T pros and watch-outs

Mevotech CTXK8708T: what owners report

Mevotech CTXK8708T: who should not buy

Buyers with a commuter car, or who have not verified the TTX part number, should not buy this. A Supreme or Original Grade arm suits commuter use better.

Mevotech CTXK8708T: pair it with

Pair it with a professional alignment and a full suspension inspection, since TTX buyers usually service hard-use vehicles.

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Best Joint-Only Alternative: Mevotech TTX Ball Joint TXK9513

Best Joint-Only Alternative

Why the Mevotech TXK9513 is our pick

The TXK9513 is the honest alternative in this article, and it is not an arm at all: a machined TTX ball joint, 8 oz, sized 4.5 by 5 by 5.5 inches, listed by Vivid Racing for a Subaru front lower application. When only the joint is worn — play in the joint, torn boot, knocking — and the arm is straight, solid, and well-bushed, replacing the joint alone saves the cost of a full arm without compromising the repair.

The limit is absolute: a joint cannot fix a bent arm, rusted structure, or worn bushings. If the arm itself is damaged, the joint-only repair fails again quickly and the full arm must be replaced. Inspect the arm honestly before choosing this pick, and verify the part number for the exact Subaru application before ordering.

Mevotech TXK9513 key specs

• Tier: TTX
• Type: ball joint only, not an arm assembly
• Construction: machined
• Weight: 8 oz
• Dimensions: 4.5 by 5 by 5.5 in
• Application: Subaru front lower, per Vivid Racing
• Bearings: TTX tier, sintered bearing technology
• Part: TXK9513
• Brand: Mevotech
• Repair: joint-only when the arm is sound

Mevotech TXK9513: fits and best for

Best for a buyer whose ball joint alone is worn and whose control arm is sound. It suits a Subaru front lower joint repair verified by part number. It is not a fix for a bent arm or worn bushings.

Mevotech TXK9513 pros and watch-outs

Mevotech TXK9513: what owners report

Mevotech TXK9513: who should not buy

Buyers with a bent arm, rusted structure, or worn bushings should not buy this. A full arm replacement is the correct repair for those cases.

Mevotech TXK9513: pair it with

Pair it with a ball joint press set and a professional alignment after fitting.

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Spec comparison

Replacing a control arm or ball joint

Raise the vehicle on stands on level ground, remove the wheel, and support the suspension before loosening control arm bolts. Mark alignment positions where the manual requires it, separate the ball joint with the correct tool rather than hammering the stud, and remove the arm or press out the old joint per the manual. For a joint-only repair, a ball joint press set is essential; improvised pressing damages the new joint.

Fit the new arm or joint, torque all fasteners to the vehicle manual figures — noting that some bushings must be torqued at ride height — and refit the wheel. A professional wheel alignment is required after any control arm job, even if the car drives straight, and a test drive should check for clunks, pulling, and uneven tyre wear before the car returns to full service.

Related how-to guides on this site: Maxpeedingrods control arms review; Best atv winch; Best tire inflator and gauge.

Test the finished setup on a short trip first, and re-check fit, fasteners, and connections after that trip before relying on it for a long haul.

Safety essentials

Accessories for this kit, each with its verified purchase button and a related guide link:

• Powerbuilt ball joint and U-joint service set, 23-piece Check Price — guide: Best atv winch.
• Grease Monkey nitrile coated work gloves, 12-pack Check Price — guide: Best 12V winch for utility trailer.
• Energizer PRO LED headlamp, 2-pack Check Price — guide: Best electric winch for trailer.

Troubleshooting

Who should NOT buy these Mevotech parts

Buyers who have not verified the part number should not order any arm here. Control arms are vehicle-specific, and listing metadata can mislead — the Rear metadata quirk on the Supreme arms proves it. A buyer who orders by title alone risks the wrong side or position. Verify the part number, position, and side against a fitment source for the exact year and model first.

Buyers with a bent arm should not buy a ball joint and hope it suffices. A joint-only repair works only when the arm is sound. A bent arm, rusted structure, or worn bushings need a full arm replacement, and a new joint pressed into a damaged arm fails again quickly. Inspect the arm honestly before choosing the cheaper repair.

Buyers who will skip alignment should not replace a control arm at home. Alignment after control arm work is not optional: skipping it wears tyres unevenly and can pull the car under braking. If a professional alignment cannot be arranged, the job is not finished, and the car should not return to full service.

Buyers with a commuter car should not pay the TTX premium without a reason. TTX suits fleets and work trucks under constant load. For a commuter car with standard use, a Supreme or Original Grade arm gives the right durability at a lower cost, and the TTX premium buys nothing the car will use. Related alternatives on this site include Best hitch receivers under 200; Best trailer brake testing equipment under 50; How to use an electric winch.

Final verdict

One line per pick, in award order. The fourth pick is a ball joint, not an arm, and the honest alternative when only the joint is worn.

Best Supreme Upper Arm, Driver Side: Mevotech Supreme CMS50120 — Best if you need a Supreme driver upper arm with upgraded durability and Labor Saver hardware, verified by part number for your vehicle. Check Price

Best Supreme Heavy Arm: Mevotech Supreme CMS25170 — Best if you need a heavier Supreme driver arm, with the same tier benefits at a larger size and weight. Check Price

Best TTX Arm: Mevotech TTX CTXK8708T — Best if you want a TTX arm with sintered bearings and Repel-TEK treatment for the hardest-use vehicles. Check Price

Best Joint-Only Alternative: Mevotech TTX Ball Joint TXK9513 — Best if only the ball joint is worn and the arm is sound — a joint-only TTX repair instead of a full arm replacement. Check Price

Frequently asked questions

What is the difference between Mevotech Original Grade, Supreme, and TTX?

Original Grade matches original equipment and suits commuters with standard use. Supreme adds upgraded durability and Labor Saver hardware, suiting heavier daily use and towing. TTX adds Repel-TEK treatment and sintered bearings for the hardest-use fleets and work trucks. The tiers differ in durability and included hardware, not just in price, so match the tier to the vehicle workload.

Should I replace the whole control arm or just the ball joint?

It depends on what is worn. If the arm is bent, rusted, or has worn bushings, replace the whole arm. If only the ball joint is worn and the arm is straight, solid, and well-bushed, a joint-only replacement like the TTX TXK9513 is the honest, cheaper repair. Inspect the arm before deciding, since a joint-only fix on a damaged arm fails again quickly.

Why does the listing say Rear when the fitment source says Front?

Listing position metadata can be wrong. The Supreme arms in this article carry Amazon Rear metadata, while fitment sources give the front position — the CMS50120 mirror CMS50121 is listed as Front Right Upper for Escalade, Astro, K1500, and Tahoe applications. This article states position from fitment sources only, and every part number must be verified for the exact vehicle before ordering.

How do I verify a Mevotech part number for my vehicle?

Check the part number against a fitment source for the exact year, make, model, and side: CMS50120 for the Supreme driver upper, CMS25170 for the heavier Supreme driver arm, CTXK8708T for the TTX arm, and TXK9513 for the Subaru front lower joint. Compare the old part number where visible, and confirm side and position, since a correct part for the wrong side does not fit.

Do I need a wheel alignment after replacing a control arm?

Yes, always, by a professional. Replacing a control arm changes suspension geometry, so alignment is required even if the car drives straight after the job. Skipping alignment wears tyres unevenly and can pull the car under braking. Budget the alignment into the job cost and inspect tyre wear after the first thousand miles.

What are the symptoms of a worn control arm or ball joint?

Common symptoms are clunking over bumps, knocking on turns, uneven tyre wear, steering wander, and vibration. A worn ball joint alone often knocks on turns and bumps, while worn bushings often clunk and shift alignment. Any of these symptoms needs a suspension inspection, since a failed ball joint can separate and cause a loss of control.

What is Mevotech TTX Repel-TEK?

Repel-TEK is Mevotech’s TTX-tier treatment, paired with sintered bearings, for the hardest-use applications like fleets and work trucks. The treatment and bearing design aim at longer service under constant load, rough roads, and extended intervals. TTX is the premium tier, so it suits hard-use vehicles better than commuters, where the premium buys little extra life.

What is Mevotech Labor Saver hardware?

Labor Saver is the Supreme-tier hardware approach: included parts that simplify installation and reduce the need for separate hardware orders. For an arm job, that can mean the difference between a complete kit and a trip to the parts store mid-job. Check what each listing actually includes, since included hardware varies by part number.

Can I replace a control arm myself?

It depends on tools and experience. The job needs stands, the correct separator and press tools, torque figures from the vehicle manual, and a professional alignment afterwards. A joint-only repair also needs a ball joint press. If any of those are missing, or if spring compressor work is required, a shop is the safer choice, since suspension work under load is a safety-critical job.

How long do control arms last?

It depends on use, roads, and tier: commuter arms last longer than work-truck arms, and TTX arms are built for longer hard-use service than Original Grade. There is no single mileage figure in the sources consulted, so inspect bushings and joints at every service, watch for clunking and uneven tyre wear, and replace on condition rather than on a calendar.

Sources

Manufacturer, listing, and reference sources: Mevotech Supreme CMS50120 listing; Mevotech Supreme CMS25170 listing; Mevotech TTX CTXK8708T listing; Mevotech TTX Ball Joint TXK9513 listing; Powerbuilt ball joint service set listing; Grease Monkey gloves listing; Energizer PRO headlamp listing.

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