HomeSuspension > Suspension, Springs and Related ComponentsMevotech GS501121 Suspension Control Arm and Ball Joint Assembly - Front Left Upper
Part #: GS501121

Mevotech GS501121 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Front Left Upper
20 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Cadillac, CTS, SRX, and STS
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OE-Style Front Left Upper Control Arm

Mevotech GS501121 is a premium suspension control arm and ball joint assembly for select Cadillac applications. Built as an exact-match replacement for original fit, form, and function, it restores OE ride quality, steering response, and handling on the front left upper suspension position.

Fits 2008-2014 Cadillac CTS, front left upper. Fits 2005-2011 Cadillac STS, front left upper. Fits 2004-2009 Cadillac SRX, front left upper.

Key Features

  • Pre-greased for ready-to-install service
  • Ball joint included with press-in mounting type
  • Threaded ball joint stud for secure attachment
  • Aluminum control arm construction
  • Rubber bushings and rubber dust boot included
  • Mounting hardware and locking nut included where required
  • Non-adjustable design for OE-style replacement
  • Silver control arm finish with black boot

Detailed Description

Mevotech Original Grade GS501121 is engineered as a direct replacement for the original front left upper control arm on Cadillac CTS, Cadillac STS, and Cadillac SRX models listed above. The aluminum arm, rubber bushings, and included ball joint are selected to restore factory-style suspension geometry and road feel. This part cross-references MOOG Chassis Products RK622836 for the same application.

For drivers searching for a front left upper control arm for 2008-2014 Cadillac CTS, 2005-2011 Cadillac STS, or 2004-2009 Cadillac SRX, GS501121 provides an OE-matched service part that aligns with routine commuter and daily-driver repair needs.

Common Repair Symptoms

  • Clunking or knocking from the front suspension
  • Loose or imprecise steering feel
  • Uneven tire wear caused by worn suspension joints
  • Excessive play in the upper control arm assembly
  • Ride quality changes from deteriorated bushings or ball joint wear

Installation Notes

Verify vehicle year, model, and front left upper position before installation. Because this assembly uses a press-in ball joint and threaded stud, proper suspension tools and alignment service after installation are recommended. Inspect adjacent components such as the steering knuckle, mounting points, and related bushings during repair.

Quality Assurance

Mevotech Original Grade parts are built to match original manufacturer fit, form, and function for OE-style suspension repair. GS501121 is designed for dependable replacement service on Cadillac CTS, Cadillac STS, and Cadillac SRX front suspension applications.

BrandMevotech
Part NumberGS501121
Pre-GreasedYes
Bushings IncludedYes
Dust Boot IncludedYes
Ball Joint Mounting TypePress in
Ball Joint Stud TypeThreaded
Ball Joint IncludedYes
Control Arm MaterialAluminum
Mounting Hardware IncludedYes
AdjustableNo
Locking Nut IncludedYes
Control Arm Maximum Width11.5
Control Arm ColorSilver
Control Arm Maximum Length11.5
Boot ColorBlack
Bushing MaterialRubber
Dust Boot MaterialRubber

This part fits 20 vehicles. Search below:

YearMakeModelDrive TypePositionNotes
2014CadillacCTSAWDFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2013CadillacCTSAWDFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2012CadillacCTSAWDFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2011CadillacCTSAWDFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2011CadillacSTSFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2010CadillacCTSAWDFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2010CadillacSTSFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2009CadillacCTSAWDFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2009CadillacSRXFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2009CadillacSTSFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2008CadillacCTSAWDFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2008CadillacSRXFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2008CadillacSTSFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2007CadillacSRXFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2007CadillacSTSFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2006CadillacSRXFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2006CadillacSTSFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2005CadillacSRXFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2005CadillacSTSFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride
2004CadillacSRXFront Left UpperPremium OE Replacement; Designed to Restore OE Performance, Handling, and Ride

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

112110519177211191817801918178219181784257543612576802925769512258474312584743325847955522-339522-84788955491889554938896454888964550C5K622836CA8704CA8718CB90477CB90477PRGS501121LGS501121RK622836TC7366X06CJ1158

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.