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Precision Ride Control Built For Electric Truck Weight
The KYB MonoMax front strut is calibrated to handle the added battery weight of the Ford F-150 Lightning while delivering up to 40 percent more damping than a factory twin-tube design. KYB5640020 restores confident handling and consistent ride quality for daily driven Lightning trucks.
Key Features
- KYB5640020 uses a monotube gas charged design for faster response
- Calibrated for the added weight of the F-150 Lightning battery pack
- Delivers up to 40 percent more damping over OE twin-tube struts
- Direct bolt-on replacement, no modification required
- KYB5640020 restores factory ride height and handling feel
- Larger piston diameter improves heat dissipation under sustained load
Fitment Table
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2022-2025 | Ford | F-150 Lightning | Pro |
| 2022-2025 | Ford | F-150 Lightning | XLT |
| 2022-2025 | Ford | F-150 Lightning | Lariat |
| 2022-2025 | Ford | F-150 Lightning | Platinum |
Specifications
| Detail | Value |
|---|---|
| MPN | 5640020 |
| Brand | KYB |
| Series | MonoMax |
| Position | Front |
| Design | Monotube gas charged |
| UPC | Not publicly listed by manufacturer |
What's Included
- One KYB5640020 MonoMax front strut assembly
About KYB
KYB has manufactured shocks and struts for original equipment and aftermarket applications for decades, supplying ride control components trusted by truck and SUV owners across North America. The MonoMax line applies OE manufacturing standards to a monotube design built for trucks carrying additional weight, including electric platforms like the F-150 Lightning.
FAQ
What is the KYB5640020?The KYB5640020 is a MonoMax front strut engineered specifically for the Ford F-150 Lightning electric truck. Its monotube gas charged design delivers up to 40 percent more damping than a factory twin-tube strut to handle the added battery weight.
Why does the Lightning need a different front strut than a gas F-150?The Lightning's battery pack adds substantial weight up front, so this strut is calibrated specifically for that load rather than a standard gas powered F-150 setup.
Does the coil spring transfer over from my old strut?Yes, the factory coil spring and upper mount need to be transferred onto the new strut during installation.
Is this a direct bolt-on replacement?Yes, it installs in the factory strut location without modification.
Will this change my ride height?No, it's designed to restore factory ride height.
Does this fit all Lightning trims?Yes, it fits Pro, XLT, Lariat, and Platinum trim Lightning trucks.
Can I install just one side, or should I do both?It's sold individually, but KYB recommends replacing struts in pairs so handling stays balanced.
Will I need an alignment after installing this?Yes, since front strut work disturbs the suspension geometry, a wheel alignment afterward is a good idea.
Install Instructions
- Raise the front of the truck and support it on jack stands.
- Remove the front wheel and disconnect the sway bar link and brake line bracket.
- Remove the upper strut mount nuts and lower strut bolts to free the factory strut.
- Transfer the coil spring and upper mount from the factory strut to the KYB5640020.
- Install the KYB5640020 assembly and torque all fasteners to factory specification.
- Reinstall the wheel and repeat on the opposite side if replacing in pairs.
KYB
KYB shocks and struts are stocked at Black Ops Auto Works across nearly every domestic and import platform, from the Dodge Durango and Chevrolet Silverado to the Ford F-150 Lightning, Toyota Camry, and Nissan Leaf. Shop Excel-G gas shocks, Strut-Plus complete strut assemblies, Gas-a-Just performance shocks, MonoMax heavy-duty truck shocks, and Truck-Plus components for cars, crossovers, and full-size trucks. KYB is an OEM shock and strut supplier to major automakers, which means fitment data here is built on genuine OE-level application charts. Black Ops Auto Works carries 967 KYB SKUs spanning strut assemblies, shocks, mounts, and steering stabilizers. What This Brand Covers KYB manufactures shocks and struts as both an original equipment supplier to vehicle manufacturers and an aftermarket replacement parts brand, giving it OE-level engineering and fitment accuracy across an extremely broad range of makes and models. Product lines span from economy sedans to heavy-duty trucks,...
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