KYB SRG4172KL Suspension Strut and Coil Spring Assembly - Front Left

KYB Truck-Plus Leveling Assembly for Ford F-150

The KYB Truck-Plus Leveling Assembly SRG4172KL is a front left suspension strut and coil spring assembly for select 2009-2013 Ford F-150 trucks. It is built to raise ride height by about 2 inches while restoring controlled front-end response for daily driving, towing, and load-carrying use.

For Ford F-150 owners looking for a front left leveling strut assembly, this KYB Truck-Plus unit is engineered as a side-specific replacement rather than a universal fit. The SRG4172KL is assembled in the USA and uses KYB’s Gas-a-Just monotube shock design for added damping control compared with standard shock absorbers.

Key Features

• Front left leveling strut assembly for select Ford F-150 applications
• Raises front ride height approximately 2 inches
• Uses a KYB Gas-a-Just monotube shock absorber for firmer control
• Side-specific design and components follow the vehicle manufacturer’s layout
• Pre-assembled for professional installation and consistent fitment
• Engineered to work with vehicles equipped with electronic safety systems such as ESC and ABS
• Assembled in the USA
• Recipient of a 2021 industry new-product award

Product Details

KYB’s Truck-Plus Leveling Assembly line is focused on restoring front suspension geometry while adding a modest lift for trucks that need a more level stance. The SRG4172KL is designed for the front left position on 2009-2013 Ford F-150 models, with fitment also listed for 2009-2010 trucks excluding 8-foot bed and heavy-duty suspension configurations. The corner-specific design helps maintain the intended steering pivot, ride height, and stability characteristics of the original suspension layout.

This part number, SRG4172KL, is built around KYB’s monotube Gas-a-Just shock technology to improve damping response and front-end control. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Part Can Address

• Front-end sag on a Ford F-150 after suspension wear
• Uneven stance between the front and rear of the truck
• Reduced steering response from worn strut assembly components
• Excessive bounce or poor damping control over rough roads
• Suspension replacement needs on the front left corner

Installation Notes and Tips

Fits 2009-2013 Ford F-150, front left. Also fits 2009-2010 Ford F-150, front left, excluding 8-foot bed and heavy-duty suspension. Verify trim, suspension package, and bed length before ordering. Because this is a pre-assembled strut and coil spring unit, it is suited for direct replacement of the front left assembly, but alignment should be checked after installation.

Quality Assurance

KYB designs Truck-Plus assemblies with corner-specific part numbers to match the vehicle’s original suspension layout and support systems such as ESC and ABS. The SRG4172KL reflects KYB’s OE-quality suspension engineering and is assembled in the USA.