For serious off-roaders, a 37-inch tire can be a game changer. This guide highlights five 37-inch tires and related gear that perform on mud, rock crawling, desert trails, and hardpack terrain. Each entry includes key features, sizing, and practical considerations to help you choose the right tire for your vehicle and terrain.
Summary of selected products:
| Product | Brand | Size / Model |
|---|---|---|
| Obor RocMonster | OBOR | RocScraper 32″, 35″, 37″ (35x10R15) |
| Crosswind M/T Mud Off-Road | CROSSWIND | 37X13.50R26LT |
| Toyo Open Country M/T Mud Terrain | Toyo Tires | 37X12.50R17 |
| AMP Terrain Attack A/T | AMP | 37×12.50R20 |
| Additional 37-Inch Tire | Brand Variants | 37×13.50R26LT (Crosswind variation) |
Obor RocMonster — 37-Inch Off-Road Tire
The Obor RocMonster line includes 37-inch options designed for rock crawling and hardpack trails. Key features include a specialized rubber compound to extend tread life, eight-ply radial construction for durability, and enlarged shoulder tread spacing to improve traction and slide control in desert environments. Available sizes include 32″, 35″, and 37″ variants, with a focus on aggressive tread blocks that bite on loose surfaces while maintaining stability on firm ground.
- Specialized rubber compound aims to extend tread life under rugged use.
- 8-ply-rated radial construction for improved puncture resistance.
- Enlarged shoulder tread spacing enhances traction and slide control on desert terrain.
- Versatile sizing including the 37″ option for larger wheel wells.
Crosswind M/T Mud Off-Road Tire — 37X13.50R26LT
The Crosswind M/T Mud Off-Road tire is built for all-season performance with mud-terrain traction and a robust load rating. Its 37X13.50R26LT sizing places it squarely in the upper 37-inch category, suitable for heavy-duty trucks and off-road rigs that tackle mud, rocks, and sand. The tire is designed for aggressive off-road use while providing predictable handling on paved sections when needed.
- All-season mud-terrain performance for mixed terrain.
- Load Range E with 10-ply construction offers durability under heavy loads.
- Strong shoulder blocks for improved grip when climbing rocks or negotiating obstacles.
- Designed to fit larger wheel wells common in full-size trucks and SUVs.
Toyo Open Country M/T Mud Terrain — 37X12.50R17
Toyo Tires Open Country M/T is a widely used mud-terrain tire that balances aggressive off-road capability with on-road manners. The 37X12.50R17 size is popular among mid to full-size trucks and SUVs, delivering strong traction for mud and loose surfaces while maintaining workable road noise and steering response on pavement. Key attributes include a rugged construction and a tread pattern designed for enhanced grip in adverse conditions.
- Japan-origin brand with a long history of off-road performance.
- Mud-terrain design optimized for traction in muddy, sandy, and rocky environments.
- Balanced ride quality and controllable handling on paved roads.
- Suitable for larger wheel setups and lifted trucks.
AMP Terrain Attack A/T — 37X12.50R20
The AMP Terrain Attack A/T is designed as an all-terrain tire that handles off-road challenges while delivering dependable on-road performance. The 37×12.50R20 size is compatible with a wide range of 37-inch tire setups, and the tire’s construction emphasizes durability for harsher terrains, including rock, mud, and dirt roads. Useful for drivers seeking consistent performance without switching tires for every trip.
- All-terrain versatility for mixed driving conditions.
- Decent tread depth for mud and loose surfaces.
- Compatible with common 37-inch wheel configurations.
- Durable construction aimed at longer service life under rugged use.
Buying Guide: 37-Inch Tire Considerations
When selecting a 37-inch tire, consider the following factors to optimize performance, safety, and value:
- Terrain compatibility: Mud, rock, desert, and hardpack each demand different tread designs and spacing. Mud-terrain tires excel in soft soils, while rock-crawler patterns emphasize sidewall and outer tread support.
- Load rating and ply count: A higher ply count (often 8–10 ply) improves puncture resistance and sidewall strength, essential for aggressive off-roading.
- Wheel compatibility: Ensure your wheel wells, lifted clearance, and suspension geometry accommodate the 37-inch diameter without rubbing or requiring extensive modifications.
- On-road behavior: Larger tires can impact steering feel, braking distance, and fuel economy. Look for tires with balanced on-road performance if you require road use as well.
- Tread life and durability: A durable compound and robust carcass contribute to longer service life, especially on abrasive desert or rocky trails.
- Maintenance considerations: Off-road tires may require more frequent rotation and alignment checks to maximize life and performance.
Other related gear can complement a 37-inch tire setup, including bead tools, tire spoons, and wheel covers. Be mindful of the overall vehicle weight, gearing, and transmission compatibility when upgrading to larger tires to avoid performance penalties or drivetrain strain.