M1R Reservoir Leveling Struts for 2025–2026 Toyota 4Runner 4WD
- Fits 2025–2026 Toyota 4Runner 4WD — SR5, TRD Sport, TRD Sport Premium, TRD Off-Road, TRD Off-Road Premium, Limited, and Platinum
- Does not fit AVS-equipped, Trailhunter, or TRD PRO 4Runners; cannot be installed with a strut spacer
- Kit contents: 2 M1R reservoir loaded front leveling struts with adjustable ride height
- Monotube body with external reservoir and digressive piston valving; silver powder-coated finish
- Install time listed at 2-3 hours — downloadable installation guide available
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Models equipped with Adaptive Variable Suspension (AVS)
- Trailhunter models
- TRD PRO models
Not compatible for installation with a strut spacer ensuring proper fit and functionality. (Models equipped with TRD-tuned FOX suspension.) Fitment on this page is based on the manufacturer’s application data.
About this kit
M1R Reservoir Leveling Struts, fitment-checked
Rough Country 684198 is a front pair of M1R reservoir leveling struts for the 2025–2026 Toyota 4Runner 4WD. Ride height is adjustable at the strut, and no strut spacer can be used with them. They do not fit 4Runners with Adaptive Variable Suspension (AVS), Trailhunter, or TRD PRO models.
These M1R reservoir leveling struts fit the 2025–2026 Toyota 4Runner 4WD in SR5, TRD Sport, TRD Sport Premium, TRD Off-Road, TRD Off-Road Premium, Limited, and Platinum trims. Each of the 2 front struts is a monotube unit with an external reservoir and an internal floating piston, digressive valving, and a powder-coated silver finish. Front height is set at the strut rather than with a spacer, so confirm your 4Runner is not AVS-equipped and is not a Trailhunter or TRD PRO before ordering. Rough Country lists the job at 2-3 hours, and a downloadable installation guide is available.
What’s in the box
Kit contents
- 2× M1R Resi Loaded Strut 681198
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 684198 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 684198 |
| UPC / GTIN | 00840269976872 |
| Shipping weight | 53.42 lb |
| Country of origin | TH |
| Category | Suspension & Lift Kits › Shocks & Struts |
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