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SKU: 5640012 | UPC: 197244166675
KYB 2021+ Ford F150 (RWD) (Exc. HD Payload Package) MonoMax Gas Strut - Front
The KYB MonoMax 5640012 front gas strut upgrades suspension on 2021 and newer Ford F-150 RWD trucks excluding HD Payload Package. This monotube strut uses high-pressure nitrogen gas for stable control during towing, hauling, or off-road driving. It restores factory ride height while improving response and reducing body roll.
Key Features
- Monotube Design: Single-tube construction provides consistent damping and resists fade on rough terrain
- Nitrogen Gas Charged: High-pressure gas minimizes foaming for reliable performance in demanding conditions
- Large Bore Piston: Bigger internal diameter improves heat dissipation and fluid flow for sustained operation
- Application-Specific Valving: Tuned damping matches Ford F-150 dynamics for precise handling and stability
- Heavy-Duty Build: Zinc-plated steel body, triple-chrome piston rod (18mm diameter), extended length 25.39in, compressed 18.90in, stroke 6.49in
Product Notes
- Fits RWD models only excluding HD Payload Package, Tremor, and Raptor variants
- Sold as single strut, pair recommended for balanced performance
- Direct bolt-on replacement using factory mounting points
Installation Notes
- Professional installation recommended.
- Use spring compressor tool to safely remove and install strut assembly
- Stem upper mount and loop lower mount compatible with OEM hardware
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2023 | Ford | F-150 | King Ranch |
| 2021-2023 | Ford | F-150 | Lariat |
| 2021-2023 | Ford | F-150 | Limited |
| 2021-2023 | Ford | F-150 | Platinum |
| 2021-2025 | Ford | F-150 | SSV |
| 2024-2025 | Ford | F-150 | STX |
| 2021-2025 | Ford | F-150 | XL |
| 2021-2025 | Ford | F-150 | XLT |
Why Choose KYB?
- Original equipment supplier to leading truck manufacturers
- Over 100 years in suspension engineering and manufacturing
- Field-tested for durability in real-world truck applications
Frequently Asked Questions
-
Q: Will this strut fit my 2024 F-150 XLT RWD without HD Payload?
A: Yes, it fits 2021-2025 F-150 XLT RWD models excluding HD Payload Package and other heavy-duty variants -
Q: What materials are used in construction?
A: Robust steel body with zinc plating for corrosion resistance, plus a triple-chrome plated piston rod for smooth operation and longevity -
Q: What warranty coverage applies?
A: KYB MonoMax struts carry a limited lifetime warranty against manufacturing defects when installed properly
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Protective box 27.5 x 6.9 x 6.9 inches
- Weight: 9.35 lbs
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.
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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...
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