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Aggressive 35-Inch Hybrid Terrain Performance Built for Work and the Weekend with the Toyo 358270 Open Country R/T Pro
The Toyo Open Country R/T Pro in 35x12.50R20LT is engineered for truck and SUV owners who demand real off-road traction without sacrificing the on-road manners needed for daily use. The 358270 pairs an aggressive lug pattern with Toyo's advanced tread compound to deliver confident grip on mud, sand, rock, dirt, and snow while managing pavement noise through a three-variable pitch pattern.
A three-ply polyester sidewall resists cuts, chips, and punctures from sharp rock and trail debris, keeping the casing intact at the aired-down pressures used for technical off-road terrain. With a 19.9/32 tread depth and a 45,000-mile limited mileage warranty, the 358270 delivers long-term value alongside its capability. Load Range F with a 125 load index supports up to 3,640 lbs per tire at 80 psi, making this size a strong match for half-ton and three-quarter-ton trucks running 20-inch wheels.
Key Features
- Hybrid rugged terrain tread with omni-directional blocks for superior traction in mud, sand, dirt, rock, and snow
- Three-ply polyester sidewall provides cut, chip, and puncture resistance for trail and rock use
- Deep 19.9/32 tread depth for extended wear life and consistent off-road performance
- Advanced tread compound resists cuts and chips and promotes even treadwear
- Three-variable pitch pattern reduces pavement pattern noise for on-road comfort
- Staggered shoulder lugs channel mud and debris clear of the contact patch
- Load Range F rated for up to 3,640 lbs per tire at 80 psi max cold inflation
- Non-directional tread allows standard rotation patterns
- 45,000-mile limited mileage warranty
Specifications
| Detail | Value |
|---|---|
| Part Number | 358270 |
| Brand | Toyo Tires |
| Model | Open Country R/T Pro |
| Size | 35x12.50R20LT |
| Service Description | 125Q |
| Load Range | F (12-ply rated) |
| Load Index | 125 (3,640 lbs max per tire) |
| Max Air Pressure | 80 psi |
| Speed Rating | Q (up to 99 mph) |
| Overall Diameter | 34.8 in |
| Section Width | 12.5 in |
| Tread Depth | 19.9/32 in |
| Rim Width Range | 8.5 to 11.0 in |
| Revs Per Mile | 598 |
| Weight | 69 lbs |
| Sidewall | Black Sidewall |
| Tread Type | Hybrid RT (non-directional) |
| Mileage Warranty | 45,000 miles |
| UPC | N/A |
What's Included
- 1x Toyo Open Country R/T Pro tire, 35x12.50R20LT 125Q F/12 (358270)
About Toyo Tires
Toyo Tires is a global tire manufacturer headquartered in Osaka, Japan, recognized for the Open Country lineup as a leader in light truck and 4x4 off-road tires. Toyo engineers all Open Country compounds and tread patterns in-house and validates them across a range of climates, altitudes, and terrain types before market release. The Open Country series is trusted by off-road enthusiasts, overlanders, and truck owners across North America.
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Frequently Asked Questions
What is the Toyo 358270?
The Toyo 358270 is the Open Country R/T Pro in 35x12.50R20LT 125Q F/12 sizing. It is a hybrid rugged terrain tire that delivers aggressive off-road traction alongside controlled on-road manners, backed by a 19.9/32 tread depth and a 45,000-mile limited warranty. It is designed for trucks and SUVs running 20-inch wheels with 8.5 to 11.0-inch rim widths.
What load range is the 35x12.50R20LT 358270?
The Toyo 358270 is Load Range F with a 12-ply rating. It supports a maximum load of 3,640 lbs per tire at 80 psi cold inflation. This makes it suitable for half-ton and three-quarter-ton trucks with payload and towing requirements, though recommended street inflation should be set per the vehicle manufacturer's placard rather than the max sidewall pressure.
What is the difference between the 358270 (35 inch) and the 358280 (37 inch)?
The 358270 (35x12.50R20LT) and 358280 (37x12.50R20LT) are the same Open Country R/T Pro tread design in different overall diameters. The 35-inch 358270 is Load Range F (12-ply) and weighs 69 lbs, while the 37-inch 358280 is Load Range E (10-ply) and weighs 78 lbs. The 35-inch size requires less lift for clearance on most full-size trucks and is the more popular fitment for daily-driven lifted half-tons.
What rim width does the 35x12.50R20LT fit?
The Toyo 358270 in 35x12.50R20LT fits rims from 8.5 to 11.0 inches wide. Running the tire within this approved rim width range is required to maintain correct sidewall shape, load distribution, and warranty coverage.
Does the Toyo R/T Pro have a mileage warranty?
Yes. The Toyo Open Country R/T Pro 358270 carries a 45,000-mile limited treadwear warranty, one of the longest in the hybrid rugged terrain category. Proper inflation maintenance, regular rotation every 5,000 to 7,500 miles, and proper alignment are required to keep the warranty valid per Toyo's terms.
Is the 35x12.50R20LT R/T Pro good for daily driving?
Yes. The Open Country R/T Pro is designed as a dual-purpose tire optimized for drivers who use their trucks off-road regularly but also put significant highway miles on them. The three-variable pitch pattern suppresses pattern noise on pavement, and the compound provides stable handling on dry and wet roads. It is quieter and more highway-comfortable than a full mud terrain while retaining most of the off-road capability.
Will a 35x12.50R20LT fit my truck without a lift?
Most stock-height full-size trucks cannot accommodate 35-inch tires without rubbing at full steering lock or during suspension travel. Clearance depends heavily on the specific make, model, wheel offset, and suspension geometry. Typically, a minimum 3 to 4-inch lift is needed on half-tons, and some cab and chassis configurations may accommodate them with a level only. Always verify clearance for your specific combination before ordering.
Does the R/T Pro perform in snow and mud?
Yes. The Open Country R/T Pro's omni-directional tread blocks and increased void ratio deliver meaningful traction in mud, loose dirt, and light to moderate snow. The tire is not a dedicated winter tire and does not carry a three-peak mountain snowflake rating, but it handles seasonal snow conditions well for an all-season-rated rugged terrain tire. For deep or persistent snow and ice, a dedicated winter tire is the appropriate choice.
Installation Instructions
- Confirm the 35x12.50R20LT size will clear your wheel wells and suspension components at full compression and full steering lock before ordering. A lift of 3 to 4 inches is typically required on full-size trucks.
- Have tires mounted and balanced by a qualified technician on approved wheels with 8.5 to 11.0-inch rim widths.
- Inflate to the vehicle manufacturer's placard pressure for your load condition. Do not use the sidewall max pressure of 80 psi as your daily street inflation.
- Torque all lug nuts to the vehicle manufacturer's specification after mounting.
- Perform a wheel alignment after any tire size change, particularly when the new tires have a different overall diameter than the previous set.
- Break in new tires by driving at moderate speeds for the first 300 to 500 miles before aggressive off-road use.
- Rotate every 5,000 to 7,500 miles to maximize tread life and maintain warranty eligibility.
WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
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