KYB SR4140 Suspension Strut and Coil Spring Assembly - Front

KYB Strut-Plus SR4140 Front Strut Assembly

The KYB Strut-Plus SR4140 is a complete front suspension strut and coil spring assembly engineered to restore ride height, steering response, and vehicle control. Built for 2003-2011 Ford Crown Victoria, Lincoln Town Car, and Mercury Grand Marquis front applications, it is a direct-fit solution for worn OE-style suspension service.

Key Features

• Complete front strut and coil spring assembly for OE-style replacement
• Built with a KYB Gas-A-Just monotube strut for responsive damping
• Monotube design reacts quickly to changing road conditions
• High-carbon steel coil spring helps restore OE ride height
• Exact-fit, pre-assembled design for professional installation results
• Engineered to help vehicles 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 product line, which combines an OE-restoring KYB strut with a matched coil spring to simplify suspension replacement. The SR4140 is designed around vehicle-specific corner weights and suspension geometry so the front end can return to factory-style stance and handling characteristics. For drivers searching for a front strut assembly for a 2003-2011 Ford Crown Victoria, Lincoln Town Car, or Mercury Grand Marquis, this assembly provides a direct replacement path for worn suspension components.

This part cross-references Monroe Shocks & Struts (e.g., 171346, 181346) for the same application.

What It Helps Address

• Excessive front-end bounce or float
• Uneven or sagging ride height
• Reduced steering stability and road control
• Worn strut performance that affects braking and handling feel
• Suspension wear that can interfere with ESC, ABS, and related systems

Installation Notes

Fits 2003-2011 Ford Crown Victoria, front; 2003-2011 Lincoln Town Car, front; and 2003-2011 Mercury Grand Marquis, front. Follow the vehicle manufacturer’s instructions for suspension strut and coil spring assembly replacement. Verify application details before installation, especially on Crown Victoria models without the Police and Taxi Package.

Quality Assurance

KYB is an original equipment supplier, and the SR4140 is engineered to restore handling, control, and ride height using OE-focused design standards. The monotube strut construction is selected for responsive performance and consistent operation in front suspension service.