Unity 15551 Suspension Strut and Coil Spring Assembly - Rear Left

Rear Left Strut Assembly for BMW 525i, 528i, 530i, 535i

Unity 15551 is a pre-assembled rear left suspension strut and coil spring assembly for select BMW 5 Series models. It arrives ready to install with the coil spring, top mount, and related components already assembled for a direct replacement on the rear left side.

Key Features

• Pre-assembled complete strut assembly for faster service
• Includes coil spring and top mount
• Built to OEM specifications for fit and function
• Direct replacement for rear left suspension service
• Unity part number 15551 for easy identification

Fitment Details

• Fits 2008-2010 BMW 528i, rear left. Excludes Sport Suspension Package and all Xi models.
• Fits 2008-2010 BMW 535i, rear left. Excludes Sport Suspension Package and all Xi models.
• Fits 2004-2007 BMW 525i, rear left. Excludes Sport Suspension Package and all Xi models.
• Fits 2004-2007 BMW 530i, rear left. Excludes Sport Suspension Package and all Xi models.

Product Description

Unity Automotive has more than 40 years of aftermarket suspension manufacturing experience, and the 15551 assembly reflects that focus on OE-style replacement parts. This rear left strut assembly is built for select BMW 525i, 528i, 530i, and 535i applications, giving technicians a complete unit for suspension repair on the rear left corner. If you are replacing a worn BMW 5 Series rear strut, Unity 15551 provides a direct-fit solution for the listed non-Sport, non-Xi vehicles.

This part cross-references Monroe Shocks & Struts (e.g., 172746) for the same application.

Common Repair Uses

• Clunking or knocking from the rear suspension
• Uneven ride height at the rear left corner
• Excessive bouncing or poor damping response
• Worn spring or mount components in the rear strut assembly
• Restoring factory-style suspension geometry on listed BMW models

Installation Notes

Verify vehicle trim before ordering, since this assembly excludes Sport Suspension Package and all Xi models. Confirm rear left placement and match the part number 15551 to the application before installation. Because this is a pre-assembled unit, it reduces the need to transfer spring and mount components during service.

Quality Assurance

Unity Automotive manufactures aftermarket suspension parts to OEM specifications and supports its products with a customer satisfaction guarantee. The brand’s suspension lineup is built from long-term aftermarket experience and is focused on consistent fitment and dependable replacement performance.