Click to zoom in
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 offers a complete line of shock absorbers, struts, and strut assemblies for cars, trucks, SUVs and Cross-overs. We also design and manufacture steering stabilizers, and provide a full line of shock and strut accessories including mounting hardware, coil spring insulators, coil springs, strut mounts, jounce bumpers, and bellows. KYB is one of the world’s largest suppliers of shocks and struts for new vehicle manufacturers. Our products can be found on some of the most popular cars, SUVs and trucks in North America. Because we make ‘original equipment’ we know exactly how vehicles perform and handle when new, and we can help keep them operating as designed, for as long as they’re on the road. The KYB catalog includes the following models: Excel-G, Strut-Plus, Gas-a-Just, MonoMax, Truck-Plus, KYB JAOS, Truck-Plus, Leveling Assembly, Strut Mounts and Boots, Steering Stabilizers, Self-Leveling & Electronic Shocks.
View KYB Products
Shocks and Struts
Shop shocks and struts at Black Ops Auto Works for improved ride control, handling, stability, comfort, towing support, off-road performance, and suspension replacement. This collection includes shock absorbers, monotube shocks, gas shocks, hydraulic shocks, strut assemblies, front struts, rear shocks, coil-over shocks, reservoir shocks, steering dampers, suspension hardware, and vehicle-specific dampers for cars, trucks, SUVs, Jeeps, off-road builds, and performance vehicles. Use this Shocks and Struts collection to find the right suspension upgrade by vehicle, ride height, driving style, and product type. Replacement shocks and struts help restore ride quality, performance shocks improve control and stability, heavy-duty truck shocks support larger vehicles and lifted setups, and off-road shocks help improve durability and control on rough terrain. Shop Shocks and Struts by Brand Black Ops Auto Works carries shocks, struts, and suspension dampers from trusted brands including Bils...
View Shocks and Struts Products
Suspension
Aftermarket suspension systems improve handling, ride quality, and ride height adjustment beyond what the factory suspension provides. From lowering springs and coilover kits for sport handling to lift kits and leveling kits for truck and SUV off-road capability, quality suspension components transform how a vehicle rides and handles. Popular Suspension Upgrades Popular suspension upgrades include coilover kits for adjustable ride height and damping, sport lowering springs for improved handling and reduced body roll, performance shock absorbers and strut assemblies, sway bar and end link upgrade kits, subframe brace kits, and complete suspension packages for lifted trucks and off-road SUVs. Alignment kits including camber bolts and camber arms are also frequently ordered after ride height changes. What is the difference between coilovers and lowering springs? Coilovers are complete shock and spring assemblies with adjustable ride height set by threading the spring perch on the shock...
View Suspension Products