KYB SR4118 Suspension Strut and Coil Spring Assembly - Front Left

KYB Strut-Plus Front Left Assembly

The KYB Strut-Plus SR4118 is a front left suspension strut and coil spring assembly for select Pontiac Vibe and Toyota Matrix models. Built as an OE-style replacement, it combines a KYB strut with a vehicle-specific coil spring to help restore ride height, steering response, and stability.

KYB’s Strut-Plus line focuses on exact fitment and pre-assembled convenience for professional repair work. For this application, the SR4118 is engineered around the vehicle’s original suspension geometry and side-specific design.

Key Features

• OE-style replacement choice for Asian vehicles
• Includes a KYB Excel-G strut, stronger steel outer shell, and application-specific damping valves
• Pre-assembled for exact fitment and professional results
• Side-specific left and right design follows the vehicle manufacturer’s original layout
• Engineered to help vehicles with electronic safety systems such as ESC and ABS
• Assembled in the USA
• Recipient of a 2018 import aftermarket industry award

Detailed Description

KYB SR4118 is part of the Strut-Plus product line, which pairs an OE-restoring KYB strut with a high-carbon steel coil spring selected for the vehicle’s corner weights and suspension requirements. That approach helps restore ride height within OE specifications while supporting predictable handling and control. This front left assembly is a direct-fit solution for 2003-2008 Pontiac Vibe and 2003-2008 Toyota Matrix models, front left, and is built to match the original side-specific suspension design.

This part cross-references Monroe Shocks & Struts (e.g., 172117, 181373L) for the same application. The KYB SR4118 is a practical choice when replacing a worn front left strut and spring assembly on a Pontiac Vibe or Toyota Matrix and when maintaining factory-style suspension behavior matters.

What It Helps Address

• Excessive front-end bounce or oscillation
• Uneven or sagging ride height at the front left corner
• Noisy or worn suspension response from a fatigued strut assembly
• Loose, unstable, or inconsistent steering feel
• Reduced suspension control after original components wear out

Installation Notes and Tips

Fits 2003-2008 Pontiac Vibe, front left. Fits 2003-2008 Toyota Matrix, front left. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Verify side, position, and vehicle trim before installation, and confirm that the replacement matches the original left-side configuration.

Quality Assurance

KYB supplies original equipment components and builds the Strut-Plus line to OE-style standards for fit, ride height, and suspension control. The SR4118 is assembled in the USA and engineered around application-specific damping and spring specifications for the listed vehicles.