Westar ST-10008 Suspension Strut Mount - Rear

Rear Suspension Strut Mount for Audi, BMW, and Porsche

Westar ST-10008 is a rear suspension strut mount built for select Audi, BMW, and Porsche applications. It is designed to provide a stable pivot point, secure the strut to the body, and reduce road noise and vibration transfer into the cabin.

• Provides a pivot point for suspension rotation to support proper steering response and tire/component wear control
• Locks the strut and body together for a secure rear suspension connection
• Includes a noise-dampening function to reduce road noise and vibration inside the vehicle
• Built with materials selected for the specific application and finished to help extend service life
• Fits rear suspension service on 2015-2025 Porsche Macan, 2009-2015 Audi A4, 2009-2015 Audi A4 Quattro, 2009-2015 Audi A5, 2009-2015 Audi A5 Quattro, 2013-2015 Audi allroad, 2009-2015 Audi Q5, 2013-2015 Audi RS5, 2010-2015 Audi S4, 2008-2015 Audi S5, and 1999-2003 BMW 540i

Fitment and Application Details

Use Westar ST-10008 when replacing a rear suspension strut mount on compatible Audi A4, Audi A5, Audi Q5, Audi S4, Audi S5, Audi allroad, Audi RS5, Porsche Macan, or BMW 540i models. This part cross-references KYB SM5666 for the same application.

Fits 2015-2025 Porsche Macan, rear, except Auto Leveling System. Fits 2009-2015 Audi A4, rear. Fits 2009-2015 Audi A4 Quattro, rear. Fits 2009-2015 Audi A5, rear. Fits 2009-2015 Audi A5 Quattro, rear. Fits 2013-2015 Audi allroad, rear. Fits 2009-2015 Audi Q5, rear. Fits 2013-2015 Audi RS5, rear. Fits 2010-2015 Audi S4, rear. Fits 2008-2015 Audi S5, rear. Fits 1999-2003 BMW 540i, rear, except Electronic Suspension.

Common Problems This Part Addresses

• Rear suspension noise from worn or deteriorated mount material
• Excess vibration transmitted from the road into the cabin
• Loose or unstable strut-to-body attachment at the rear suspension
• Reduced steering precision and uneven tire wear caused by mount wear
• Suspension clunking or movement at the upper strut attachment point

Installation Notes and Tips

Confirm rear position and verify the vehicle’s suspension options before ordering. This part is listed for Porsche Macan models except Auto Leveling System and BMW 540i models except Electronic Suspension. Compare the original mount and OE-style dimensions during replacement to ensure proper alignment and fit.

Quality Assurance

Westar designs this strut mount with application-specific materials and a protective finish to support durability and appearance. The part is engineered as a direct-fit suspension service component for the listed Audi, BMW, and Porsche rear applications.