Rough Country 684199 M1R Reservoir Loaded Struts · Adjustable Height · Front · 3.5 Inch Toyota 4Runner (25-26)
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
- Not compatible for installation with a strut spacer, ensuring proper fit and functionality.
- Does not fit trd offroad models.
- Does not fit models equipped with adaptive variable suspension (avs).
- Does not fit trailhunter models.
- (models equipped with old man emu suspension.
- ) does not fit trd pro models.
- (models equipped with trd-tuned fox suspension.
- )
Specifications
| Brand | Rough Country |
|---|---|
| Part number | 684199 |
| UPC / GTIN | 8402699739560 |
| Install time | 2-3 hours |
| Dimensions | nan x nan x nan |
| Weight (lbs) | 53.42lbs |
| Country of Origin | TH |
| Warranty | Manufacturer’s Warranty Statement |
Features
- Adjustable ride height: customize your vehicle's ride height for improved handling and clearance, providing ultimate control over your suspension system.
- Monotube strut with external reservoir: features an internal floating piston for enhanced shock absorption and better heat dissipation, ensuring maximum performance.
- Increases travel: designed to increase suspension travel, allowing for smoother rides and greater off-road capabilities.
- Faster heat dissipation: superior heat management ensures that the strut maintains peak performance even under heavy loads and extreme conditions.
- Durable 2-inch seamless extruded tube: engineered with a robust, seamless design for enhanced strength and long-lasting durability.
- 2-inch digressive piston: offers superior control and comfort with a piston designed for optimal damping and handling in all driving conditions.
- Self-adjusting, deflective-disc independent rebound and compression: provides a more responsive and adaptable suspension system by independently adjusting to varying terrain and conditions.
- 16mm centerless-ground, case-hardened, chromed, and super-polished rod: built with a high-strength, precision-machined rod for enhanced durability and corrosion resistance.
- 46mm monotube design: ensures consistent, fade-free performance in any environment, whether on-road or off-road, delivering superior handling at all times.
- Digressive valving: instantly adapts to changing surface conditions, providing a smoother and more controlled ride, no matter the terrain.
- Powder-coated silver finish: offers resistance against harsh environmental factors like rust and corrosion, ensuring long-lasting quality.
- Durable vulcanized natural rubber bushings: built to withstand high-impact environments while reducing noise and vibration for a more comfortable ride.
- 3-year manufacturer’s warranty: confidence in your purchase with a comprehensive 3-year warranty to protect against defects and ensure lasting performance.
Fitment
| Years | Vehicle |
|---|---|
| 2025-2026 | 4WD Toyota 4Runner |
Use the fit check above with your truck selected, or ask a specialist if your trim isn't listed.
Installation
- Estimated install time2-3 hours
Free install support from the Trucks R Us tech team, for you or your shop.
Overview
Improved Stance, Balance, and Handling: If you want to improve your vehicle's on-road performance and off-road capabilities, Rough Country's M1R Struts are the way to go. Our M1R Reservoir Struts help stabilize your vehicle's movements, enhancing control when you turn, brake, accelerate, or ride over uneven road surfaces. Designed with adjustable ride height, these M1R Struts provide superior suspension control, preventing overextension for a smoother, more consistent ride. With a 46mm monotube design and 2-inch digressive piston, they offer exceptional damping and handling, giving you the stability you need for rough terrains and off-road adventures. Whether on-road or off-road, these struts deliver fade-free performance for ultimate control and comfort.
Quality Construction: Rough Country's M1R Loaded Struts are engineered for long-lasting durability and outstanding performance. Crafted from a durable 2-inch seamless extruded tube, they’re designed to withstand the toughest conditions while maintaining strength. The monotube strut with an external reservoir features an internal floating piston for better heat dissipation, ensuring your suspension performs under heavy loads and extreme conditions. The 16mm centerless-ground, case-hardened chromed rod adds further durability and corrosion resistance. Additionally, the struts feature durable vulcanized natural rubber bushings to minimize noise and vibration, enhancing comfort during your drive. The powder-coated silver finish offers superior protection against rust and environmental wear, making these struts a reliable choice for any adventure.
Advanced Suspension Technology: These M1R Reservoir Struts are built for performance with self-adjusting, deflective-disc independent rebound and compression, adapting quickly to varying terrains for an even smoother ride. The 2-inch digressive piston optimizes control and comfort in all driving conditions. Plus, the increased suspension travel offers a more responsive and adaptable system, perfect for off-roading enthusiasts who demand flexibility. The superior heat dissipation and increased travel ensure you maintain peak performance, no matter how challenging the terrain.
Installation and Warranty: This bolt-on installation requires basic tools and takes about 2-3 hours to complete. For added confidence, the Rough Country M1R Strut Kit is backed by a 3-year Manufacturer’s Warranty, protecting against defects and ensuring your purchase is built to last. With our comprehensive warranty, you can trust that your suspension system will perform reliably for years to come. Get peace of mind with the industry-leading warranty that ensures durability and reliability in all conditions.
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.
No reviews for this part yet. Trucks R Us is rated on Trustpilot, Google and the BBB.
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