Mevotech GS501131 Suspension Control Arm and Ball Joint Assembly - Rear Left Upper

OE-Style Rear Left Upper Control Arm

Mevotech GS501131 is a premium suspension control arm and ball joint assembly built for the rear left upper position on select Cadillac CTS, STS, and SRX models. It is made to match original manufacturer fit, form, and function for routine driving and OE-style ride quality.

For drivers searching for a rear left upper control arm for 2008-2015 Cadillac CTS, 2005-2011 Cadillac STS, or 2004-2009 Cadillac SRX, this assembly provides a direct replacement solution with the correct geometry and mounting style.

Key Features

• Mevotech Original Grade premium replacement part
• Exact-match fitment for OE-style suspension restoration
• Rear left upper position for select Cadillac applications
• Aluminum control arm construction with silver finish
• Pre-greased design for ready-to-install service
• Rubber bushings included
• Press-in ball joint mounting type with threaded stud
• Non-adjustable design for factory-style suspension alignment

Detailed Description

Mevotech GS501131 is engineered as a premium OE replacement control arm assembly for the rear left upper suspension position. The aluminum arm helps maintain the original suspension layout, while the included rubber bushings and press-in ball joint support factory-style ride characteristics and handling response. This part is a strong match for Cadillac CTS rear suspension repair, Cadillac STS rear suspension service, and Cadillac SRX rear suspension restoration where original fit and function matter.

This part cross-references MOOG Chassis Products RK622100 and Delphi TC7369 for the same application. Mevotech GS501131 is also listed as an interchange for several OE and aftermarket numbers, making it a practical reference when replacing a worn rear upper control arm on Cadillac CTS, STS, or SRX vehicles.

Common Problems This Part Can Address

• Rear suspension looseness or clunking from worn bushings or ball joint wear
• Uneven rear tire wear caused by suspension geometry issues
• Imprecise handling or reduced rear-end stability
• Excessive play in the rear left upper suspension arm
• Ride quality changes from fatigued control arm components

Installation Notes and Tips

Confirm the rear left upper position before installation and verify vehicle fitment by year, make, and model. Because this assembly uses a press-in ball joint and threaded stud, proper suspension service tools and alignment procedures are recommended after replacement. Fitment includes 2008-2015 Cadillac CTS, rear left upper; 2005-2011 Cadillac STS, rear left upper; and 2004-2009 Cadillac SRX, rear left upper.

Quality Assurance

Mevotech Original Grade parts are built to match the original manufacturer’s fit, form, and function for everyday driving. GS501131 is designed to restore OE performance, handling, and ride characteristics in the rear suspension.