You're viewing new Toyo Open Country R/T Pro Tire | LT285/75R18 | E/10 | Manufacturer Part No 358540.
Toyo Open Country R/T Pro LT285/75R18
The Toyo Open Country R/T Pro LT285/75R18 is a tall, capable super-duty tire that combines the best traits of height, sidewall depth, and trail performance. At approximately 34.8 inches in diameter, this is one of the taller non-flotation metric sizes available on an 18" rim — making it a favorite among Ford F-250 Tremor, RAM 2500 Power Wagon, and Silverado 2500HD owners who want maximum clearance without going to an aggressive flotation size. The 75-series sidewall provides exceptional compliance on rocks and rough terrain, and delivers outstanding aired-down off-road performance. Dual load ratings (129/126Q) make this tire ready for single or dual rear wheel applications. If you're hauling gear to a remote campsite on rough forest roads, this is the tire built for your mission.
Overview
The Open Country R/T Pro LT285/75R18 is a rugged-terrain hybrid designed for drivers who need more than a standard all-terrain without committing to the full compromises of a mud-terrain. The LT285/75R18: 285mm (~11.2") wide, 75% aspect ratio, 18" rim. Approximately 34.8" overall diameter. A tall, narrow metric size with a generous sidewall — popular on super-duty trucks for its combination of height, trail compliance, and towing stability. On pavement, the LT285/75R18 delivers predictable highway handling, confident wet braking, and manageable noise levels for a tire of this tread aggression. Off-road, the open shoulders, staggered lugs, and stone ejectors combine to provide solid traction in dirt, gravel, light mud, and loose terrain typical of trail and overland driving. It is a strong match for super-duty overlanding, towing on unpaved roads, work trucks wanting off-road tread with maintained tow capacity, trail exploration with highway towing in same trip, and carries a 129/126Q load rating for dependable performance under demanding conditions.
Key Features & Specifications
- ~34.8" tall diameter for outstanding ground clearance on super-duty platforms
- Tall 75-series sidewall for enhanced trail compliance and aired-down performance
- Dual load ratings (129/126Q) for SRW and DRW super-duty applications
- Load Range E construction handles demanding tow and payload tasks
- Hybrid R/T tread performs across rock, mud, gravel, and wet highway
- Reinforced sidewall protects against cuts and punctures in rocky terrain
- Factory-compatible sizing for select F-250 Tremor and Power Wagon fitments
Load Range E construction, load rating 129/126Q, size LT285/75R18. These elements work together to deliver confident traction on and off the road with long-lasting durability.
On‑Road and Off‑Road Performance
On pavement, the LT285/75R18 delivers predictable highway handling, confident wet braking, and manageable noise levels for a tire of this tread aggression. The tread void ratio is tuned to balance mud evacuation with a stable contact patch, so braking and steering remain predictable on wet or dry pavement. In winter conditions, the sipes and block edges help in unpacked snow, though this is not a dedicated winter tire — consider winter tires where conditions are severe. Off-road, the open shoulders, staggered lugs, and stone ejectors combine to provide solid traction in dirt, gravel, light mud, and loose terrain typical of trail and overland driving. Stone ejecting grooves help keep the tread clear, reducing rock drilling and protecting the casing over rough fire roads and construction sites.
Off‑Road Capability
The shoulder lugs and alternating block edges on the LT285/75R18 create side bite in ruts and technical sections. The cut and chip resistant compound limits damage on rocky terrain, and airing down within safe limits increases the footprint for sand and rock crawling — always reinflate before returning to highway speeds. Avoid excessive wheelspin on sharp surfaces, and rotate regularly to keep wear even across drive axles. This size is particularly well-suited for super-duty overlanding, towing on unpaved roads, work trucks wanting off-road tread with maintained tow capacity, trail exploration with highway towing in same trip.
Fitment & Compatibility
Trucks: Ford F-250 (factory on some Tremor/FX4 trims), RAM 2500 Power Wagon, Chevrolet Silverado 2500HD, GMC Sierra 2500HD All-Terrain
SUVs: Toyota Land Cruiser (2021+), Land Rover Defender, Ford Expedition (custom builds)
Off-Road & Specialty Vehicles: Ford F-250 Tremor, RAM 2500 Power Wagon, overland expedition rigs on 18" wheels
Always verify fitment using your vehicle's door-jamb label. Confirm clearance at full steering lock and suspension compression. Larger or wider sizes may require a leveling kit, lift, corrected wheel offset, or minor trimming depending on your specific vehicle configuration.
Sizes & Load Rating
This listing is for size LT285/75R18 with a load rating of 129/126Q (Load Range E). This rating makes it suitable for heavy towing and payload demands on super-duty platforms, though always verify that load index meets or exceeds your vehicle's minimum requirements, especially if you tow or carry heavy payloads regularly.
Pricing & Value
Pricing for the LT285/75R18 size reflects its Load Range E construction and rugged-terrain capability. Installed cost includes mounting, balancing, TPMS service, and alignment. Look at total ownership value — including durability on rough roads, balanced on-road manners, and dependable trail traction — when comparing against alternatives. Regular rotations, proper inflation, and periodic alignments extend tread life and maximize your investment.
Open Country R/T Pro LT285/75R18 vs Alternatives
In the LT285/75R18 size category, the Open Country R/T Pro competes with aggressive all-terrains like the BFGoodrich All-Terrain T/A KO2 and Falken Wildpeak AT3W, typically offering a more open lug pattern for added loose-surface bite. Compared with other rugged-terrain hybrids such as the Nitto Ridge Grappler or Goodyear Wrangler Duratrac, the R/T Pro emphasizes durability and off-road traction while keeping composed on-road manners. Related sizes worth comparing include LT285/75R17, LT285/65R18, LT275/70R18 — nearby super-duty metric options across rim sizes. The best choice depends on your priorities — maximum trail capability or quieter daily comfort.
