KYB SR4149 Suspension Strut and Coil Spring Assembly - Front

KYB Strut-Plus for Ford Expedition

KYB SR4149 is a front suspension strut and coil spring assembly for 2003-2006 Ford Expedition models without air suspension. It is built to restore OE ride height, steering response, and vehicle control for this application.

Key Features

• Complete front strut assembly from KYB’s Strut-Plus line
• Includes a KYB Excel-G strut with application-specific damping valves
• High-carbon steel coil spring is matched to vehicle corner weights and ride-height requirements
• Stronger steel outer shell for added structural support
• Pre-assembled for exact fitment and professional results
• Engineered to help vehicles with electronic safety systems such as ESC and ABS
• Assembled in the USA

Detailed Description

The KYB Strut-Plus SR4149 is engineered for the front suspension of the Ford Expedition, 2003-2006, excluding air suspension models. As part of KYB’s Strut-Plus product line, it combines an OE-restoring KYB strut with a vehicle-specific coil spring to help return the suspension to factory ride height and handling characteristics. KYB’s role as an original equipment supplier informs the damping and spring design, making this assembly a direct-fit solution for drivers looking to restore front-end stability, steering feel, and suspension control on the Ford Expedition. This part number, SR4149, is built for exact fitment and is pre-assembled to support professional installation and consistent results.

What It Helps Address

• Front-end sag or reduced ride height
• Excessive bounce, sway, or poor damping control
• Loose or imprecise steering response
• Uneven suspension performance after strut wear
• Ride quality changes that can affect ESC and ABS system behavior

Installation Notes and Tips

Fits 2003-2006 Ford Expedition, front, recommended OEM replacement; excludes air suspension models. Verify the vehicle’s suspension configuration before ordering. Because this is a pre-assembled strut and coil spring unit, it is intended to simplify replacement of the front suspension assembly on the Ford Expedition. After installation, a professional alignment is recommended to confirm proper suspension geometry and steering performance. SR4149 should be matched to the listed application only.

Quality Assurance

KYB manufactures this Strut-Plus assembly as an OE-style replacement built around application-specific damping and spring specifications. The design is intended to restore factory ride height and handling characteristics for the listed Ford Expedition fitment.