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Unity 15551 rear left complete strut assembly for BMW 5 series

Unity

Unity 15551 Rear Left Complete Strut Assembly 2004-2010 BMW 525i 528i 530i 535i

SKU CH-W4C2-1XSD7

Pre-assembled rear left strut with mount, bearing plate, bumper, insulators and coil spring fits 2004-2007 525i, 2008-2010 528i, 2004-2007 530i and 2008-2010 535i models

  • Preassembled unit eliminates specialty tools and speeds repair
  • Fits 2004-2007 525i and 530i models
  • Fits 2008-2010 528i and 535i models
  • Excludes XI and Sport Suspension variants for exact fit
  • Backed by 50 years aftermarket suspension experience

Rear Left Strut for BMW 5 Series

The Unity 15551 is a complete strut assembly built for the rear left corner of 2004-2007 BMW 525i and 530i models, plus 2008-2010 528i and 535i sedans. It arrives preassembled with top mount, bearing plate, bumper, insulators and coil spring so the repair proceeds without specialty tools. This unit is not for XI all-wheel-drive models or vehicles equipped with sport suspension.

Replaces Worn Original Suspension

The assembly replaces a factory strut that has lost damping control or suffered spring fatigue after years of service. The jump is worth it when the original components are rusted, leaking or causing uneven tyre wear, because the preassembled design removes the need for a spring compressor and cuts installation time. It does not fit XI models or sport-suspension variants, so buyers with those configurations must source a different part.

Bolt-On Fitment Limits

Fitment is limited to the specific model years and chassis codes listed in the application guide. The unit excludes XI models and sport suspension, meaning it will not align with the mounting points or damping rates of those variants. No adaptation hardware is included, so verification against the vehicle identification number is essential before installation begins.

Highlights

  • Preassembled unit eliminates specialty tools and speeds repair
  • Fits 2004-2007 525i and 530i models
  • Fits 2008-2010 528i and 535i models
  • Excludes XI and Sport Suspension variants for exact fit
  • Backed by 50 years aftermarket suspension experience

Specifications

BrandUNITY

Questions about this item

Does the Unity 15551 rear left strut assembly bolt directly to the factory mounting points on a 2008 BMW 528i?

Yes, the assembly is designed to fit the original mounting locations on 2008-2010 BMW 528i models, excluding Xi and Sport Suspension variants.

What is the most common installation mistake when fitting this preassembled strut on a 2004-2007 BMW 530i?

Technicians often forget to torque the top mount nuts to the vehicle specification after the vehicle weight is on the suspension, which can cause noise or premature wear.

Which components in this Unity 15551 assembly will need replacement after normal service life on a 2010 BMW 535i?

The coil spring, strut bearing, bump stop, and insulators are integrated new parts; only the strut cartridge itself would require future replacement if damping performance degrades.

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