KYB 551600 Suspension Strut - Front

KYB Gas-a-Just Front Strut 551600

KYB Gas-a-Just 551600 is a front suspension strut built as an OE-style monotube replacement for select Ford, Lincoln, and Mercury full-size sedans. It is engineered to restore original handling response while adding the firmer control expected from a high-pressure monotube design.

Key Features

• Monotube OE replacement for front suspension service
• Separate gas and oil chambers for consistent damping response
• High-pressure nitrogen gas supports quick steering response
• Triple chrome plated piston rod helps reduce seal wear
• Dust cover included for added protection
• B-stop and R-stop included in the strut design
• Fits vehicles used for towing, heavier wheels, and demanding driving conditions

Product Details

The KYB Gas-a-Just line is designed for drivers who want the original suspension behavior restored without giving up control. This front strut uses an air-free hydraulic working area for responsiveness and a separate high-pressure gas chamber with a floating piston to maintain stable operation during normal driving and immediate performance when suspension demand increases. The 551600 is a direct-fit suspension strut for 2003-2011 Ford Crown Victoria, 2003-2011 Lincoln Town Car, and 2003-2011 Mercury Grand Marquis in front applications. This part cross-references Monroe Shocks & Struts 71346 for the same application.

For shoppers searching for a front strut for 2003-2011 Ford Crown Victoria, front suspension strut for 2003-2011 Lincoln Town Car, or front shock replacement for 2003-2011 Mercury Grand Marquis, KYB 551600 is the correct monotube-style option for those listed applications. The part number 551600 is also useful when matching OE replacement suspension components by reference.

Common Problems This Part Addresses

• Excessive front-end bounce or reduced damping control
• Loose steering feel or delayed response over uneven pavement
• Suspension fade during repeated load changes
• Noise or vibration related to worn front strut components
• Seal wear associated with fluid leakage in aging struts

Installation Notes

Install according to the vehicle manufacturer’s instructions. KYB recommends replacing the strut mount, part number SM5392, to reduce the chance of noise and vibration. On Lincoln Town Car applications, replace the suspension strut and coil spring assembly according to manufacturer procedures. Verify front fitment before installation and confirm the vehicle is not a police car or taxi when servicing a Crown Victoria application.

Quality Assurance

KYB designs Gas-a-Just struts as OE monotube replacements to help restore the vehicle’s intended suspension control and handling characteristics. The monotube construction separates gas and oil for fade-resistant operation and consistent response under load.