Suspension and Components› Shocks, Struts, Coil-Overs and Components
KYB
KYB Shocks & Struts Gas-A-Just Strut 14-20 Ford F-150 4WD
SKU: K00D 5510039
Moderate — 2–4 hours
Description
Part #: 5510039
The KYB Gas-a-just monotube strut has additional performance advantages over the traditional twin-tube design: It can instantly, automatically adjust to your performance needs and never experiences fade due to aeration. The KYB Gas-a-just has two separate working chambers: An air-free hydraulic piston and valve area for responsiveness and control, and a second high-pressure nitrogen gas area with a floating piston that provides a comfortable ride during normal driving and adds instant performance on demand.
MIA's Description
Engineered for a firmer ride and better performance than traditional twin-tube struts, the Gas-a-Just 5510039 features a high-pressure nitrogen gas design, increased damping force, a seamless working cylinder, and a triple-chrome plated piston rod for durability.
Fitment
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Available on iOS & Android
Specifications
| Brand | KYB |
| Part Number | K00D 5510039 |
Videos
KYB Gas-a-just Shocks and Struts on Truck U
KYB Shock Installation Pro Tips
KYB Truck-Plus Leveling Kit & Gas-a-just shocks on Two Guys Garage
KYB Installation Tips
Federated Tech Talk - KYB - Shocks and Struts (Tire Control/Body Control)
KYB TV Episode 6: How to Choose the Best Strut Assembly for Trucks
KYB Strut Installation Pro Tips
KYB Strut-Plus Performance Testing
KYB monomax shock initial impression
Here is the scoop The KYB strut plus ride height after 4 months of use
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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