Dorman 527-174 Lateral Arm - Rear Right Upper Forward

Dorman 527-174 Lateral Arm for Rear Suspension

Dorman 527-174 is a steel lateral arm built as a standard replacement for the original equipment suspension link on select Cadillac, Buick, and Saab vehicles. It is engineered and tested for direct replacement use on the rear right upper forward position, with bushings included for a complete service part.

Key Features

• Steel construction for suspension strength and durability
• Standard replacement grade for OE-style service
• Fits the rear right upper forward position on listed applications
• Bolt-on attachment with 14.5 mm mounting hole diameter
• Black finish with black bushings
• Bushings included; ball joint not included
• Not adjustable and not pre-greased
• Package contents: 1 lateral arm

Detailed Description

This Dorman lateral arm, part number 527-174, is designed for suspension repair where the original rear control link has worn, bent, or developed excess play. It uses steel and rubber/steel bushing construction to restore proper rear suspension geometry on applications such as the 2013-2019 Cadillac XTS, 2014-2017 Buick Regal, 2010-2016 Buick LaCrosse with RPO code GNE (H-Arm rear suspension), 2010-2011 Saab 9-5 with H-Arm rear suspension, and 2010 Buick Allure. This part cross-references Mevotech Supreme CMS501249 for the same application.

What It Helps Fix

• Rear suspension clunking or knocking from a worn lateral arm
• Excess movement in the rear right upper forward suspension link
• Uneven rear tire wear caused by suspension looseness
• Imprecise rear suspension alignment after bushing wear
• Metal fatigue or corrosion in the original arm

Installation Notes and Tips

Verify vehicle configuration before ordering, especially on Buick LaCrosse and Saab 9-5 models with H-Arm rear suspension. This part installs in the rear right upper forward position and uses a bolt-on attachment with a 14 mm mount stud diameter and 14.5 mm mounting hole diameter. Because mounting hardware is not included, reuse or replace fasteners as required by the vehicle service procedure. After installation, a rear suspension alignment check is recommended.

Quality Assurance

Dorman manufactures this lateral arm as a precision-engineered replacement and subjects it to testing for reliable OE-style service on the listed vehicles. Part number 527-174 is built to meet standard replacement expectations for suspension repair.