Unity 15313 Suspension Strut and Coil Spring Assembly - Rear Left

Rear Left Strut Assembly for GM Applications

Unity 15313 is a pre-assembled rear left suspension strut and coil spring assembly built for direct replacement on select GM vehicles. It is fully assembled and ready to install, making it a practical choice for restoring rear suspension performance on the Chevrolet Impala, Buick LaCrosse, Buick Allure, Pontiac Grand Prix, and Chevrolet Monte Carlo.

Built to OEM specifications and engineered for plug-and-play installation, this Unity complete strut assembly is designed for drivers who want a straightforward replacement for worn rear suspension components. The Unity 15313 part number is also listed under common OE cross references for the same application.

Key Features

• Pre-assembled complete strut assembly with coil spring and top mount
• Rear left position
• Fully assembled and ready to install
• Built to OEM specifications
• Fits select 2004-2016 GM passenger cars with confirmed rear left applications
• Economy-grade replacement from Unity Automotive

Detailed Description

Unity Automotive has more than 40 years of aftermarket suspension manufacturing experience, and the 15313 assembly reflects that focus on direct-fit replacement parts. This unit is engineered for the rear left side and covers a broad range of applications, including 2004-2013 Chevrolet Impala, 2005-2009 Buick Allure, 2005-2009 Buick LaCrosse, 2004-2008 Pontiac Grand Prix, 2004-2007 Chevrolet Monte Carlo, and 2014-2016 Chevrolet Impala Limited. For the 2004-2013 Chevrolet Impala, 2005-2009 Buick Allure, 2005-2009 Buick LaCrosse, 2004-2008 Pontiac Grand Prix, and 2004-2007 Chevrolet Monte Carlo, fitment notes specify 17" wheels.

This part cross-references Monroe Shocks & Struts 182471L for the same application. The Unity 15313 is a direct replacement option for drivers searching for a rear left strut assembly for Chevrolet Impala, Buick LaCrosse, or Pontiac Grand Prix suspension repair.

What It Helps Address

• Rear suspension noise from worn strut components
• Uneven ride height at the rear left corner
• Excessive bouncing or reduced damping control
• Handling instability caused by aging suspension parts
• Time-consuming rebuilds of individual strut components

Installation Notes and Tips

Verify the vehicle year, make, model, and rear left position before ordering. Confirm wheel size where noted, since several applications require 17" wheels. Because this is a fully assembled unit, installation is simplified compared with rebuilding a strut from separate components, but final fitment should still be checked against the vehicle’s suspension configuration.

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 around consistent fitment, direct replacement design, and long-term service in everyday driving conditions.