KYB SR4137 Suspension Strut and Coil Spring Assembly - Front

KYB Strut-Plus SR4137 Front Strut Assembly

The KYB Strut-Plus SR4137 is a front suspension strut and coil spring assembly engineered to restore ride height, handling, and steering response. Built for 2006-2010 Ford Explorer and 2006-2010 Mercury Mountaineer front applications, it combines OE-style fitment with application-specific damping for a direct replacement solution.

Key Features

• Complete front strut assembly from KYB, a trusted OEM-quality shocks and struts brand
• Includes a KYB Excel-G strut, stronger steel outer shell, and precision-designed damping valves
• High carbon steel coil spring is matched to vehicle attributes and corner weights to help restore OE ride height
• Exact fitment, pre-assembled for professional installation results
• Engineered to help vehicles equipped with electronic safety systems such as ESC and ABS
• Assembled in USA

Product Details

KYB Strut-Plus SR4137 is part of the KYB Strut-Plus line, a complete suspension strut and coil spring assembly line focused on restoring original ride characteristics after strut wear or spring sag. For Ford Explorer and Mercury Mountaineer front suspension service, this assembly is built to replace the strut and spring together with OE-restoring geometry and damping characteristics. The SR4137 part number is also referenced in cross-application listings for the same vehicle fitment, including Monroe Shocks & Struts 171124 and 181124.

What It Helps Address

• Front-end sag from weakened or fatigued coil springs
• Excessive bounce, harshness, or reduced damping control
• Uneven ride height that affects alignment and stance
• Steering instability or poor road feel from worn strut components
• Suspension performance concerns on vehicles with ESC, ABS, or related safety systems

Installation Notes

Fits 2006-2010 Ford Explorer, front. Fits 2006-2010 Mercury Mountaineer, front. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Verify vehicle trim and suspension configuration before installation, and confirm alignment after replacement. The SR4137 is pre-assembled to support professional installation on the front suspension.

Quality Assurance

KYB supplies original equipment components and builds Strut-Plus assemblies to restore handling, control, and ride height to OE specifications. The SR4137 is assembled in the USA and uses KYB’s OE-restoring strut design with application-specific damping calibration.