KYB SR4660 Suspension Strut and Coil Spring Assembly - Front Left

KYB Strut-Plus SR4660 Front Left Assembly

The KYB Strut-Plus SR4660 is a front left suspension strut and coil spring assembly for select 2010-2011 Ford Flex and 2010-2011 Lincoln MKT models. Built to restore ride height, steering response, and vehicle stability, it combines an OE-restoring KYB strut with a high carbon steel coil spring matched to vehicle corner weights.

Key Features

• Complete suspension strut and coil spring assembly for the front left position
• OE-restoring KYB strut engineered for original ride and handling characteristics
• High carbon steel coil spring developed around vehicle attributes and corner weights
• Helps restore ride height within OE specifications
• Boot included for added protection
• Compressed length: 11.33 in; extended length: 18.24 in; stroke length: 6.91 in

Product Details

KYB Strut-Plus SR4660 is part of the Strut-Plus line, a product family focused on complete front suspension service rather than piecing together separate components. For Ford Flex and Lincoln MKT applications, this assembly addresses the strut, spring, and ride-height relationship in one unit, which is important because the strut assembly carries vehicle weight, sets ride height, acts as a steering pivot, and influences stability systems. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Assembly Can Address

• Front-end sag or uneven ride height
• Excessive bounce or reduced damping control
• Loose or imprecise steering feel at the front left corner
• Noise or wear associated with a fatigued strut assembly
• Restoration needs after suspension service on a Ford Flex or Lincoln MKT

Installation Notes and Tips

Fits 2010-2011 Ford Flex, front left. Fits 2010-2011 Lincoln MKT, front left. Confirm the vehicle’s trim and suspension configuration before ordering, and verify that the replacement matches the front left position. Because this is a complete strut and spring assembly, it is typically used as a direct replacement for the original front corner unit. After installation, a professional wheel alignment is recommended to verify steering geometry and ride height.

Quality Assurance

KYB is an original equipment supplier, and the Strut-Plus SR4660 is engineered with OE restoration in mind. The assembly uses a KYB strut and a high carbon steel coil spring selected to help return the vehicle to factory ride-height specifications for the listed Ford Flex and Lincoln MKT applications.