A 37-inch all-terrain tire is the single most consequential upgrade you can make to a lifted truck or off-road rig. It alters gearing, stresses suspension components, and fundamentally changes how the vehicle feels at highway speed and on the trail. The wrong tire bites into fuel economy and introduces persistent vibration. The right tire delivers a planted, stable ride across mud, rock, and pavement.
I’m Min — the co-founder and writer behind Gadgets Feed. I’ve spent dozens of hours analyzing tread compounds, ply ratings, load indexes, and real-world owner feedback across the most popular 37-inch all-terrain and mud-terrain tires currently available, breaking down which models justify their spec sheets and which ones fall short under load.
This guide focuses on the best-rated options in the category, giving you a clear, data-backed path to finding your next set of 37 inch all terrain tires.
How To Choose The Best 37 Inch All Terrain Tire
Selecting the right 37-inch tire requires balancing on-road civility with off-road tenacity. The wrong choice can mean drone on the highway or a sidewall failure two miles into a trail. Focus on four key areas before making a purchase.
Load Range and Ply Rating
Load range (E, F, and beyond) tells you how much weight the tire can carry at a given pressure. Load Range E typically supports around 3,195 to 3,640 pounds per tire, while Load Range F pushes that to over 3,500 pounds. An F-rated tire with a 12-ply sidewall provides maximum resistance against cuts and pinch flats when aired down on rocky terrain. If your rig is a heavy diesel pickup or carries significant armor, skip the lower ply ratings and go straight to a 12-ply construction.
Tread Compound and Depth
Tread depth measured in 32nds of an inch directly dictates how well the tire clears mud and snow. Shallow treads around 18/32nds are quieter on pavement but pack up quickly in slop. Deeper treads at 22/32nds self-clean better and provide longer overall tire life but generate more road noise. Softer rubber compounds improve grip on wet rocks but wear faster under heavy throttle on asphalt. For a daily driver, look for a balance around 20/32nds with a compound that includes silica for wet-road bite.
Speed Rating and Load Index
Speed rating (Q, R, S) determines the maximum safe sustained speed. A Q-rated tire is typically rated to 99 mph, which is more than sufficient for off-road and highway use. The load index number (like 124 or 126) corresponds to the tire’s maximum load capacity at full inflation. Cross-reference the load index with your vehicle’s gross axle weight rating — never run a tire with a load index below the factory recommendation for your truck, especially when towing.
Sidewall Design and Protection
Sidewall thickness and tread wrap matter when you’re scraping against ledges or running low pressure in rocky washes. Tires with reinforced shoulder blocks and thicker rubber in the sidewall zone resist punctures better than budget options with similar tread patterns. Look for features like rim guards and raised sidewall lugs that protect the tire-to-rim interface during aggressive off-road maneuvers.
Quick Comparison
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| Model | Category | Best For | Key Spec | Amazon |
|---|---|---|---|---|
| Toyo Open Country M/T | Mud-Terrain | Heavy diesel trucks & towing | 127 Load Index, 92 lbs | Amazon |
| Goodyear Wrangler DuraTrac RT | All-Terrain | Snow & icy road performance | 126 Load Index, Kevlar-reinforced | Amazon |
| Cooper Discoverer Rugged Trek | All-Terrain | On-road comfort & 55k warranty | 126 Load Index, 55k treadwear | Amazon |
| BFGoodrich Mud Terrain T/A KM3 | Mud-Terrain | Extreme rock crawling & mud | 124 Load Index, Krawl-TEK tech | Amazon |
| Venom Power Terra Hunter R/T+ | Rugged Terrain | Dirt roads & daily driving blend | 117 Load Index, 50k warranty | Amazon |
| Cooper Discoverer STT Pro | Mud-Terrain | Long tread life & quiet ride | 121 Load Index, Armor Tek3 | Amazon |
| Atturo Trail Blade MTS 17″ | Mud-Terrain | Budget-friendly mud performance | 124 Load Index, 22/32nds tread | Amazon |
| Atturo Trail Blade MTS 26″ | Mud-Terrain | Large rim fitment budget choice | 125 Load Index, 12-ply rating | Amazon |
| Evoluxx Rotator M/T | Mud-Terrain | Budget entry-level 37s | 124 Load Index, 12-ply rated | Amazon |
In‑Depth Reviews
1. Toyo Tires Open Country M/T
The Toyo Open Country M/T carries a 127 load index and a maximum pressure of 65 PSI, which puts it in a different class for heavy diesel pickups and one-ton trucks. Owners report 20,000 miles with over half the tread remaining, and the 3-ply polyester sidewall construction resists cuts better than most competitors. The open shoulder blocks clear mud aggressively without sacrificing wet-road siping.
On the highway, the Open Country M/T balances noticeably smoother than many 37-inch mud tires. Several verified buyers on heavy 3500-series trucks noted that two of four tires required zero balancing weights — an indicator of tight manufacturing tolerances. The 13.5-inch section width provides a wider contact patch for towing stability without excessive road wander.
This tire commands a premium price, but the combination of load capacity, long tread life, and minimal road noise makes it the benchmark for serious off-road and towing applications. It is the tire to buy when you cannot afford a failure on the trail or the highway.
Why it’s great
- Exceptional tread life for a mud tire with 20k+ miles reported and half tread remaining
- Balances easily with minimal weights needed
- Strong 3-ply polyester sidewall resists punctures
Good to know
- Premium price point places it at the top of the budget range
- Heavy weight at 92 lbs per tire affects acceleration and fuel economy
2. Goodyear Wrangler DuraTrac RT
The Goodyear Wrangler DuraTrac RT is an all-season radial with a 126 load index and a 37×12.50R20LT fitment that uses DuPont Kevlar for tread protection. This tire is specifically engineered for winter weather performance, with a proven tread pattern that delivers extra biting edges for snow traction. Owners living at over 6,000 feet elevation report it outperforms the Falken Wildpeak AT3W and AT4W on icy roads in heavy trucks.
The three-ply sidewall is paired with Goodyear’s Durawall compound to resist punctures, abrasions, and cuts in rough conditions. A 50,000-mile tread life limited warranty backs the tire, which is rare for an aggressive all-terrain. The tire comes in at 84.75 pounds and handles rain exceptionally well, with owners reporting confident grip right out of the box.
If your driving involves significant snow, ice, or cold-weather conditions, the DuraTrac RT is the premium choice. It balances winter capability with highway comfort better than any dedicated mud tire.
Why it’s great
- Top-tier snow and ice grip for a heavy truck tire
- Kevlar reinforcement adds puncture resistance
- 50,000-mile tread life warranty included
Good to know
- Priced at the upper end of the all-terrain category
- Limited to 20-inch rim fitments in this size
3. Cooper Discoverer Rugged Trek
The Cooper Discoverer Rugged Trek is an all-season tire with a 126 load index and the longest treadwear warranty in this guide at 55,000 miles. It features a dual-sidewall design that lets you choose between a Mountain Pass or Knife-Edge pattern, giving two distinct looks from a single tire. The tread is up to 30 percent deeper than Cooper’s traditional all-terrain tires, which directly translates to longer usable life.
Owners report significantly improved ride quality over factory tires, with one owner of a 2021 King Ranch noting that the Rugged Trek eliminated dash vibrations and interior rattles present with OEM rubber. The tire is quiet at highway speeds with only a light roar between 55 and 65 MPH. It self-cleans in mud and handles heavy rain with confidence at 36 PSI without needing air-down.
If you prioritize longevity and on-road comfort while still needing off-road capability, this is the most balanced all-terrain tire for 37-inch fitments. The 55k warranty provides peace of mind that most aggressive tires simply do not offer.
Why it’s great
- 55,000-mile treadwear warranty is best-in-class for aggressive tires
- Dual-sidewall design offers customizable look
- Quiet highway ride with excellent rain grip
Good to know
- Not a true mud-terrain for extreme slop
- 20-inch rim fitment limits compatibility
4. BFGoodrich Mud Terrain T/A KM3
The BFGoodrich Mud Terrain T/A KM3 is the benchmark for extreme off-road traction, featuring Krawl-TEK technology that delivers 8 percent better rock traction and 5 percent better mud traction than the previous KM2 model. The Terrain-Attack tread pattern uses massive tread blocks engineered to grip from any angle in muddy or soft soil. The race-proven sidewall has increased thickness in the critical failure zone to resist splitting and puncturing.
On-road, owners report the KM3 is quieter than worn BFG all-terrains, which is a remarkable feat for a tire this aggressive. The 124 load index supports up to 3,525 pounds per tire, and the tire comes in at 77.4 pounds — light for a 37-inch mud tire. Grip is exceptional on wet, muddy, and rocky terrain, making it a favorite for serious rock crawlers and overlanders.
The KM3 is the purest expression of a mud-terrain tire in this guide. If your driving involves more trail than tarmac and you need maximum bite, this is the tire.
Why it’s great
- Best-in-class rock and mud traction with Krawl-TEK compound
- Surprisingly quiet on pavement for a mud tire
- Race-proven sidewall puncture resistance
Good to know
- Premium pricing reflects the brand and technology
- Load Range D, not E or F for maximum towing
5. Venom Power Terra Hunter R/T+
The Venom Power Terra Hunter R/T+ is a rugged-terrain tire that splits the difference between an all-terrain and a mud-terrain. It carries a 50,000-mile treadwear warranty and a Load Range F with a 12-ply rating. Owners report minimal road noise at highway speeds, with one buyer noting excellent ride quality after 3,500 miles on rough roads and interstates. The tire balances well and rotates evenly.
The Terra Hunter excels on dirt roads and in muddy conditions, with open shoulder channels that flush water and slush. The 117 load index is lower than some competitors at 2,833 pounds per tire, so heavy towing applications may exceed its capacity. However, for daily-driven trucks that see moderate off-road use, the combination of a 50k warranty and aggressive looks is hard to beat.
This tire offers the best warranty-to-price ratio in the mid-range segment. If you want an aggressive look without the noise penalty of a full mud-terrain, the Terra Hunter delivers.
Why it’s great
- 50,000-mile treadwear warranty at a mid-range price
- Minimal road noise for an aggressive tread pattern
- 12-ply rating provides solid sidewall protection
Good to know
- 117 load index is lower than E-rated competitors
- Some owners report loud noise at highway speeds
6. Cooper Discoverer STT Pro
The Cooper Discoverer STT Pro is the most extreme all-season off-road tire Cooper offers, with Armor Tek3 construction for increased durability. This is the tire buyers turn to when they need a mud-terrain that lasts. One verified owner reported 42,000 miles on a single set with tread remaining, replacing the tires only due to age and an alignment issue rather than wear. That kind of longevity is unheard of in most 37-inch mud tires.
The STT Pro uses a tread design that prevents stone retention, a common annoyance with open-lug mud tires. Load Range E supports up to 3,195 pounds per tire, and the tire is relatively light at just 8.6 kilograms. Owners consistently note surprisingly low road noise for such an aggressive pattern, with noise increasing only as the tread wears deeper.
If you want a mud-terrain that can double as a daily driver without replacing tires every 20,000 miles, the STT Pro is the proven choice. It has been on the market long enough to build a strong reliability reputation.
Why it’s great
- Exceptional tread life with 42k+ miles reported
- Quiet for a mud-terrain, especially when new
- Stone-ejector tread design prevents retention
Good to know
- Price has increased over original release
- Load Range E may be limiting for heavy towing
7. Atturo Trail Blade MTS 37×12.50R17
The Atturo Trail Blade MTS in the 17-inch fitment is a mud-terrain tire with quad center blocks that paddle through mud and serrated shoulders that dig into rock ledges. The 22/32nds tread depth is among the deepest in this guide, and the interconnected center tread design allows stable highway tracking. Stone ejectors force out rocks automatically, and open shoulder channels flush water and slush quickly.
Owners consistently compare it favorably against Toyo tires at half the price, noting smooth rides with balance bags and acceptable road noise. The 124 load index supports 3,527 pounds per tire, and the 12-ply rated construction provides strong sidewall protection. One buyer on a Jeep reported that road noise was minimal even in a soft-top vehicle.
This is the best entry-level mud tire for 17-inch rims. The deep tread and aggressive sidewall pattern deliver serious off-road capability at a price that leaves room for a fifth spare.
Why it’s great
- Deep 22/32nds tread for excellent mud clearance
- Aggressive karambit-knife sidewall pattern
- Strong value against premium brand competitors
Good to know
- Road noise is noticeable but acceptable for the category
- Some tires may need extra balance weight
8. Atturo Trail Blade MTS 37×13.50R26
The Atturo Trail Blade MTS in the 26-inch rim fitment shares the same tread design as its 17-inch sibling but adds a 125 load index with 3,638 pounds of capacity. This is one of the few budget-friendly mud tires available for large 26-inch rims, making it a go-to option for lifted trucks running big wheels. The 12-ply rating provides the same sidewall strength as premium options at a fraction of the cost.
Owner feedback mirrors the 17-inch version: smooth ride after balancing, acceptable noise levels for a mud tire, and aggressive looks that draw attention. The tire weighs 81 pounds, making it relatively light for a 37-inch 12-ply tire. The stone ejectors and open shoulder channels work identically across both sizes, ensuring consistent mud performance.
If you are running 26-inch wheels and need a 37-inch mud tire without paying a premium surcharge, this is your only logical choice. It delivers the same performance as the smaller version in a fitment that few competitors serve at this price.
Why it’s great
- Rare 26-inch fitment at a budget-friendly price
- 125 load index supports heavy loads
- Same aggressive tread pattern as the 17-inch version
Good to know
- Road noise is present but typical for mud terrain
- Limited to 26-inch rim applications
9. Evoluxx Rotator M/T
The Evoluxx Rotator M/T is the most affordable entry into 37-inch mud tires in this guide, with a 124 load index and a 12-ply rating for 3,527 pounds of capacity. The tire uses an aggressive tread pattern with large voids for mud evacuation. Owners report excellent grip in mud and snow, with one buyer noting the tire grabs well in sloppy conditions.
However, the budget position comes with trade-offs. Multiple reviewers note that the rubber compound is soft, raising durability concerns for long-term use. The sidewall feels weaker than the 12-ply rating suggests, with one owner comparing it to a 6-ply in cornering feel. On pavement, the tire picks up and flings gravel, so easing into speed is necessary to avoid paint damage.
If you need 37-inch tires for occasional off-road use and want to minimize upfront cost, the Rotator M/T gets the job done. Just understand that this is a budget tire with budget compromises in compound longevity and sidewall rigidity.
Why it’s great
- Lowest entry price for 37-inch mud tires
- 124 load index with 12-ply rating on paper
- Good mud and snow traction for the price
Good to know
- Soft rubber compound raises durability concerns
- Sidewall feels weaker than 12-ply rating suggests
- Gravel pickup on pavement requires careful throttle
FAQ
Can I run 37-inch all-terrain tires on a stock suspension?
What is the difference between a mud-terrain and an all-terrain tire in 37 inches?
How much does a set of 37-inch tires affect fuel economy?
Final Thoughts: The Verdict
For most users, the winner of the 37 inch all terrain tires category is the Toyo Open Country M/T because it delivers the highest load capacity with proven tread life and balanced highway manners for heavy trucks. If you want exceptional snow and ice capability without going full mud-terrain, grab the Goodyear Wrangler DuraTrac RT. And for the best value with a 55,000-mile warranty and excellent on-road comfort, nothing beats the Cooper Discoverer Rugged Trek.