Mevotech GS501278 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Rearward

OE-Style Front Left Lower Rearward Control Arm

Mevotech GS501278 is a premium suspension control arm and ball joint assembly built to match original manufacturer fit, form, and function. It is made for regular commuting and routine driving, with OE-style ride quality and handling in mind for Cadillac ATS, Cadillac CTS, and Cadillac CT4 applications.

Compatible with 2013-2024 Cadillac ATS, 2017 Cadillac CTS, and 2020-2024 Cadillac CT4 in the front left lower rearward position, this assembly is a direct-fit suspension replacement for worn factory components.

Key Features

• Exact-match OE replacement for proper fit and suspension geometry
• Pre-greased for ready-to-install service
• Ball joint mounting type: press-in
• Ball joint stud type: threaded
• Aluminum control arm construction with silver finish
• Rubber bushings included for factory-style compliance
• Non-adjustable design for direct replacement use

Detailed Description

The Mevotech Original Grade line focuses on restoring original ride characteristics without changing the factory suspension layout. GS501278 uses an aluminum control arm with rubber bushings and a press-in ball joint to mirror OE-style construction on the front left lower rearward suspension position. For drivers searching for a Cadillac ATS front left lower rearward control arm, a Cadillac CTS suspension control arm and ball joint assembly, or a Cadillac CT4 OE replacement control arm, this part is built for the same application family.

This part cross-references MOOG Chassis Products RK623945 and Delphi TC7012 for the same application. The part number GS501278 is also listed under Mevotech Original Grade GS501278 and Mevotech Supreme CMS501278 interchange references.

What It Helps Address

• Clunking or knocking from the front suspension
• Loose or inconsistent steering response
• Uneven tire wear caused by worn suspension joints or bushings
• Excessive play in the front left lower rearward control arm
• Ride quality changes from deteriorated OE suspension components

Installation Notes and Tips

Verify vehicle year, model, and front left lower rearward position before installation. Because this assembly uses a press-in ball joint and threaded stud design, proper suspension service tools and torque procedures are important for correct installation. Inspect adjacent hardware, alignment angles, and related steering components during replacement to confirm the suspension is returned to factory specification.

Quality Assurance

Mevotech Original Grade parts are engineered as OE-style replacements for fit, form, and function. GS501278 is built to restore original suspension performance for routine driving applications on Cadillac ATS, Cadillac CTS, and Cadillac CT4 models.