Dorman 528-165 Suspension Control Arm - Rear Left Lower

Dorman 528-165 Rear Left Lower Control Arm

Dorman 528-165 is a standard replacement suspension control arm engineered for specific rear left lower applications. It is built from steel with a powder-coated finish and rubber bushings to replace worn OE hardware on select Cadillac and Buick models.

Key Features

• Steel control arm construction for suspension service replacement
• Powder-coated finish for added surface protection
• Rubber bushings included with black bushing color
• Boxed control arm design
• Standard replacement grade for direct-fit service work
• No ball joint installed and no grease fitting included
• Compatible with rear left lower suspension positions only

Fitment and Application

Fits 2013-2019 Cadillac XTS, rear left lower. Fits 2014-2017 Buick Regal, rear left lower. Fits 2013-2016 Buick LaCrosse, rear left lower, including applications with RPO Code GNE (H-Arm Rear Suspension) where noted. This Dorman 528-165 control arm also cross-references Monroe Shocks & Struts (e.g., RK642390) for the same application.

Detailed Description

This suspension control arm is precision-engineered and tested as a replacement for the original equipment part on the listed vehicles. The steel boxed design, rubber bushings, and powder-coated finish support rear suspension service on Cadillac XTS, Buick Regal, and Buick LaCrosse applications that require a rear left lower control arm. Part number 528-165 is a practical OE-style replacement when the original arm shows wear, corrosion, or bushing deterioration.

Common Problems This Part Can Address

• Clunking or knocking from the rear suspension
• Excessive play caused by worn bushings
• Uneven rear tire wear related to suspension looseness
• Rear-end instability or wandering during driving
• Corrosion or damage to the original control arm

Installation Notes and Quality Assurance

Install on the rear left lower position only and verify vehicle fitment by year, make, model, and suspension configuration before service. Mounting hardware is not included. Ball joint installation is not part of this assembly, and no grease fitting is provided. Dorman backs this replacement control arm with product engineering and testing focused on OE-level fit and function for the listed applications.