KYB SR4200 Suspension Strut and Coil Spring Assembly - Front Left

KYB Strut-Plus SR4200 Front Left Assembly

The KYB Strut-Plus SR4200 is a complete front left suspension strut and coil spring assembly for select Jeep Liberty and Dodge Nitro applications. Built to restore ride height, steering response, and suspension control, it combines OE-style fitment with application-specific damping and a pre-assembled design for professional replacement work.

Key Features

• Includes a KYB Excel-G strut with application-specific precision damping valves
• High carbon steel coil spring is matched to vehicle corner weights to help restore OE ride height
• Stronger steel outer shell for added structural support
• Exact-fit, pre-assembled design for professional installation results
• Side-specific left and right engineering follows the vehicle manufacturer’s intended layout
• Engineered to support vehicles equipped with electronic safety systems such as ESC and ABS
• Assembled in the USA

Product Details

KYB Strut-Plus is part of the KYB Strut-Plus line, a complete suspension solution built around KYB’s OE-restoring strut design. For this application, the SR4200 is engineered to help return the vehicle to proper ride height and handling balance while maintaining the steering pivot function of the front strut assembly. This matters on the Jeep Liberty and Dodge Nitro, where front suspension geometry directly affects stability, steering feel, and electronic safety system performance. This part cross-references Monroe Shocks & Struts (e.g., 171577L, 181577R) for the same application.

What It Helps Address

• Front-end sag or uneven ride height
• Excessive bounce, harshness, or reduced damping control
• Loose or imprecise steering response
• Suspension wear that affects stability and alignment behavior
• Ride quality changes after strut and spring fatigue

Installation Notes

Fits 2002-2012 Jeep Liberty, front left. Fits 2007-2008 Dodge Nitro, front left. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Verify side-specific fitment before installation, since this assembly is engineered for the front left position only. The SR4200 is pre-assembled for direct replacement, but final alignment should be checked after installation.

Quality Assurance

KYB is an original equipment supplier, and the Strut-Plus line is engineered to restore handling and control characteristics using OE-focused components and vehicle-specific tuning. The SR4200 is assembled in the USA and built to match the application requirements of the Jeep Liberty and Dodge Nitro front suspension.