KYB SR4093 Suspension Strut and Coil Spring Assembly - Rear Left

KYB Strut-Plus Rear Left Assembly

The KYB Strut-Plus SR4093 is a complete suspension strut and coil spring assembly for the rear left position. It is built to restore ride height, handling response, and vehicle stability on select Buick and Chevrolet applications, including Buick Allure, Buick LaCrosse, and Chevrolet Impala.

As part of KYB’s Strut-Plus line, this assembly combines an OE-restoring KYB Excel-G strut with a high-carbon steel coil spring and application-specific damping calibration. The result is a direct-fit replacement engineered for the vehicle’s original suspension geometry and electronic safety system performance.

Key Features

• Complete strut assembly for the rear left suspension position
• Includes a KYB Excel-G strut with precision-designed damping valves
• High-carbon steel coil spring helps restore OE ride height
• Stronger steel outer shell for added structural support
• Exact-fit, pre-assembled design for professional installation results
• Side-specific construction follows the vehicle manufacturer’s original layout
• Engineered to work with electronic safety systems such as ESC and ABS
• Assembled in the USA

Product Details

KYB Strut-Plus SR4093 is designed for drivers replacing a worn rear left strut assembly on 2005-2009 Buick Allure, 2005-2009 Buick LaCrosse, and 2004-2009 Chevrolet Impala models with the listed wheel-size and equipment restrictions. KYB develops this assembly using OE-focused suspension knowledge to help return the vehicle to original ride height and handling characteristics. This part cross-references Monroe Shocks & Struts (e.g., 271662R, 371662R) for the same application.

What It Helps Address

• Rear suspension sag or reduced ride height
• Excessive bounce, sway, or loose handling feel
• Uneven rear suspension response from a worn strut assembly
• Noisy or degraded ride quality from aging suspension components
• Loss of original steering and stability behavior on equipped vehicles

Installation Notes

Fits 2005-2009 Buick Allure, rear left, for vehicles with wheel sizes less than 17 inches. Fits 2005-2009 Buick LaCrosse, rear left, for vehicles with wheel sizes less than 17 inches. Fits 2004-2009 Chevrolet Impala, rear left, for vehicles without 17-inch or 18-inch wheels and excluding Police and Taxi models. Verify the vehicle’s wheel size, trim, and suspension configuration before installation. Because this is a pre-assembled strut and spring unit, it is intended to simplify replacement and reduce the need to transfer spring components during service.

Quality Assurance

KYB is an original equipment supplier, and the Strut-Plus line is engineered to restore handling, control, and ride height using OE-based design targets. The SR4093 is built with side-specific components and application-specific damping to match the vehicle’s original suspension requirements.