Rough Country 41840 4 inch Lift Kit · Forged UCA · M1/M1 · No Cut Ford F-150 4WD (2021-2026)
- Front lift 4"
- Install 5-6 hours
Questions about fitment? Live chat or call 866-235-4715
Couldn't load pickup availability
- Free shippingMost orders $500+
- 30-day returnsSee policy
- Warranty supportWe work with the maker
Questions about fitment?
Talk to a TRU specialist
We’ll help you verify fitment before you buy.
Veteran-owned · Austin, Texas · Mon–Fri 9:30a–11:00a & 1:00p–5:30p CT
Important notes before you order
- Does not fit standard cab models.
- Does not fit models equipped with continuous control damping (ccd) system.
- Does not fit tremor models as they are equipped with a 1-inch factory lift.
- Due to variances in motor weight rough country's replacement strut options do not fit models equipped with a 3.
- 0l power stroke turbo diesel v6 engine.
- Retain your factory wheels by using our 0.
- 25-inch wheel spacers sku: 1065 .
TRU specialist notes
From the Trucks R Us fitment and install team, beyond the manufacturer's information.
- Plan for a professional wheel alignment after installing any lift or leveling kit.
- Going to bigger tires as well? Speedometer recalibration may be needed, and some tire and wheel combinations need trimming. Check the recommended wheels and tires, or ask us before you order.
Specifications
| Brand | Rough Country |
|---|---|
| Part number | 41840 |
| UPC / GTIN | 8402699653880 |
| Front Lift Height | 4" |
| Front | (2) Upper Control Arms (2) M1 Monotube Struts (2) Aluminum Knuckles Hardware |
| Rear | (2) Lift Blocks U-Bolts Hardware |
| Install time | 5-6 hours |
| Dimensions | nan x nan x nan |
| Weight (lbs) | 171.50lbs |
| Country of Origin | CN |
| Warranty | Manufacturer’s Warranty Statement |
What's in the box
| Qty | Part | Description |
|---|---|---|
| — | — | Front: (2) Upper Control Arms (2) M1 Monotube Struts (2) Aluminum Knuckles Hardware |
| — | — | Rear: (2) Lift Blocks U-Bolts Hardware |
Features
- Easy bolt-on installation: hassle-free setup with no complicated modifications.
- No cutting or drilling required: install with confidence, no permanent changes needed! premium forged aluminum upper control arms: enhances durability and suspension performance with a lightweight, high-strength design.
- Optimized ball joint angles: reduces wear and tear for long-lasting reliability.
- Durable rubber bushings: provides smoother operation and extended lifespan.
- Increased ground clearance: conquer rough terrain with improved ride height.
- Front & rear leveling: achieve a balanced, aggressive stance.
- Reversible to stock: easily restore your truck to its original setup.
- High-strength forged aluminum knuckles: delivers oe-level performance and quality with a robust, durable design.
- Unmatched performance and quality: aluminum knuckles outperform traditional lift kits, providing superior strength and efficiency.
- Lightweight construction: 50% lighter than steel knuckles, reducing overall vehicle weight and improving agility.
- Enhanced vehicle dynamics: aluminum knuckles improve fuel economy and handling by reducing weight and enhancing performance.
- Reduced unsprung mass: lighter aluminum knuckles enhance steering response, resulting in quicker handling and improved off-road control.
- Complete m1 suspension setup: includes premium m1 struts and shocks for unmatched ride quality, durability, and all-terrain performance.
Fitment
| Years | Vehicle |
|---|---|
| 2021-2026 | 4WD Ford F-150 |
Use the fit check above with your truck selected, or ask a specialist if your trim isn't listed.
Recommended wheels & tires
25 tire and wheel combinations from Rough Country. Pick a wheel size to narrow the list.
| Tire | Wheel | Bolt Pattern | Offset | Note |
|---|---|---|---|---|
| 275/65R20 | Factory 20 | 6x135 | – | 0.25 Spacer |
| 295/70R18 | 18x9 | 6x135 | +18 | – |
| 295/70R18 | 18x9 | 6x135 | +20 | – |
| 305/55R20 | 20x9 | 6x135 | -12 | – |
| 295/60R20 | 20x9 | 6x135 | -12 | – |
| 305/55R20 | 20x9 | 6x135 | +0 | – |
| 295/60R20 | 20x9 | 6x135 | +0 | – |
| 305/55R20 | 20x9 | 6x135 | +1 | – |
| 295/60R20 | 20x9 | 6x135 | +1 | – |
| 295/60R20 | 20x9 | 6x135 | +18 | – |
| 305/55R20 | 20x9 | 6x135 | +18 | – |
| 305/55R20 | 20x9 | 6x135 | +20 | – |
| 295/60R20 | 20x9 | 6x135 | +20 | – |
| 305/55R20 | 20x10 | 6x135 | -25 | – |
| 295/60R20 | 20x10 | 6x135 | -25 | Minor Trimming |
| 305/55R20 | 20x10 | 6x135 | -24 | – |
| 295/60R20 | 20x10 | 6x135 | -24 | Minor Trimming |
| 305/55R20 | 20x10 | 6x135 | -19 | – |
| 295/60R20 | 20x10 | 6x135 | -19 | Minor Trimming |
| 305/55R20 | 20x10 | 6x135 | -18 | – |
| 295/60R20 | 20x10 | 6x135 | -18 | Minor Trimming |
| 305/45R22 | 22x10 | 6x135 | -25 | – |
| 305/45R22 | 22x10 | 6x135 | -24 | – |
| 305/45R22 | 22x10 | 6x135 | -19 | – |
| 305/45R22 | 22x10 | 6x135 | -18 | – |
Installation
- Estimated install time5-6 hours
Free install support from the Trucks R Us tech team, for you or your shop.
Overview
Aggressive Stance Meets Superior Ride Quality: Transform your Ford F-150 with Rough Country's 4-Inch Lift Kit, built to deliver aggressive style, improved ground clearance, and unbeatable suspension performance. Designed specifically for F-150 owners who demand strength and comfort, this complete lift solution includes premium M1 struts and shocks for smooth, all-terrain control. No Cutting. No Drilling. No Hassle: This kit installs with ease thanks to a 100% bolt-on design that requires no permanent modifications. Whether you're taking on the trails or cruising the highway, you'll appreciate the convenience of a lift that's also reversible to stock. Strength Without the Weight: Built with forged aluminum upper control arms and high-strength aluminum knuckles, this kit is made to last while reducing overall vehicle weight. Optimized ball joint angles and durable rubber bushings ensure long-term reliability and quieter operation. Enhanced Handling and Performance: Aluminum knuckles reduce unsprung mass by up to 50% compared to steel, leading to faster steering response, better fuel economy, and improved handling, on or off the road. Level, Lifted, and Ready: Get the look you want and the performance you need. This kit offers front and rear leveling, giving your F-150 a tough, balanced stance and the clearance to tackle more.
Questions
Will this fit my truck?
Select your truck at the top of the page and the fit check will confirm it. If your exact trim is not listed, call 866-235-4715 or live chat and a fitment specialist will check it before you order.
Do you help with installation?
Yes. Our technical team helps you or your shop with installation and troubleshooting after delivery, on top of the manufacturer’s support.
What if the part has a problem?
We work the warranty claim with the manufacturer on your behalf, within the manufacturer’s warranty policy.
Can I return it?
Most items can be returned within 30 days. See our return policy for details.
Do I need an alignment after installing?
Yes. Any lift or leveling kit changes suspension geometry, so get a professional alignment after installation.
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About Rough Country
Rough Country is a leading manufacturer and distributor of off-road accessories and suspension systems. Built on a foundation of American values and rooted in Tennessee, we use our expertise of trucks, Jeeps, and UTVs to help people drive their passions... Shop all Rough Country