Dorman 528-178 Lateral Arm - Rear Right Lower Rearward

Dorman 528-178 Lateral Arm for Subaru Tribeca

Dorman 528-178 is a steel lateral arm built as a standard replacement for the original rear suspension link on select Subaru models. It is precision-engineered and tested for direct replacement use on the rear right lower rearward position.

Compatible with 2006-2007 Subaru B9 Tribeca and 2008-2014 Subaru Tribeca, this lateral arm supports rear suspension geometry where the OE arm has worn, bent, or developed bushing play. The bent steel design and included bushings help restore stable rear suspension operation on the Subaru Tribeca platform.

• Steel construction for rear suspension replacement
• Bent arm shape for the specified OE-style application
• Includes bushings
• Bracket-to-bushing attachment design
• Standard replacement grade for select Subaru Tribeca applications
• Part number: 528-178

Detailed Product Overview

This Dorman lateral arm is made for the rear right lower rearward suspension position on 2006-2007 Subaru B9 Tribeca and 2008-2014 Subaru Tribeca models. It uses a steel body with black bushings and a bracket-style end, matching the intended suspension layout for the application. The arm measures 446 in length and 75.24 mm in height, with a 12.2/12.5 mm mounting hole diameter.

Part number 528-178 is a practical OE-style replacement when the original lateral arm no longer maintains proper rear wheel location or suspension alignment. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems This Part Can Address

• Rear suspension noise from worn bushings
• Excessive play in the rear control arm assembly
• Uneven rear tire wear caused by suspension movement
• Clunking or looseness from a damaged lateral arm
• Loss of rear suspension stability on Subaru Tribeca models

Installation Notes and Tips

Install this lateral arm in the rear right lower rearward position only on the listed Subaru applications. Verify mounting hole size, bracket orientation, and suspension geometry before installation. Because mounting hardware is not included, reuse or source the correct fasteners separately as needed. A professional alignment is recommended after suspension component replacement.

Quality Assurance

Dorman engineers this replacement lateral arm for specific vehicle applications and tests it for reliable OE-style fit and function. It is a standard replacement suspension component for Subaru Tribeca and B9 Tribeca models.