Dorman 540-865 Suspension Control Arm Bushing - Front Lower Rearward

Dorman 540-865 Suspension Control Arm Bushing

Dorman 540-865 is a standard replacement suspension control arm bushing for specific Cadillac, Buick, and related applications with front lower rearward mounting positions. It is precision-engineered and tested to replace the original equipment bushing on vehicles such as the Cadillac XTS and Buick Regal with performance suspension.

Key Features

• Standard replacement suspension control arm bushing
• Aluminum and rubber construction with steel and rubber bushing material
• Silver finish with black and gray color code details
• Inside diameter: 14.2 mm
• Outside diameter: 66.2 mm; width: 66.2 mm; length: 66 mm
• Wall thickness: 23.8 mm
• Mounting type: bushing
• Dust boot, bracket, mounting hardware, and hardware included: No
• Package contents: 1 bushing, 1 tapered spacer

Detailed Description

This Dorman suspension control arm bushing, part number 540-865, is built for front lower rearward suspension locations on select 2010-2019 vehicles. It fits 2013-2019 Cadillac XTS, front lower rearward, w/6 lug wheels; 2011-2017 Buick Regal, front lower rearward, w/performance suspension; 2010-2016 Buick LaCrosse, front lower rearward, w/performance suspension; and 2010 Buick Allure, front lower rearward, w/performance suspension. The design uses aluminum and rubber with steel and rubber bushing materials to match the service requirements of the original suspension layout.

This part number 540-865 cross-references Delphi TD1677W for the same application.

Common Repair Symptoms

• Clunking or knocking from the front suspension
• Excessive control arm movement under load
• Uneven tire wear caused by worn suspension bushings
• Loose or unstable steering feel over bumps
• Visible cracking, separation, or deterioration in the control arm bushing

Installation Notes and Tips

Verify the front lower rearward position and vehicle configuration before ordering, especially on Cadillac XTS models with 6 lug wheels and Buick models with performance suspension. Inspect the control arm, mounting points, and surrounding components for wear before installation. Because mounting hardware is not included, reuse or replace related service parts as needed based on the vehicle condition. Confirm the mounting hole diameter and bushing dimensions against the original part before pressing the bushing into place.

Quality Assurance

Dorman states this suspension control arm bushing is precision-engineered and rigorously tested to provide a reliable OE-style replacement for the original equipment on specific vehicles. Part number 540-865 is built as a standard replacement for service use on the listed Cadillac and Buick applications.