I Tested the Cooper STT Pro 37×12.50R17: My Honest Review and Performance Insights
When it comes to upgrading my vehicle’s performance and handling, choosing the right tires is always at the top of my list. That’s why the Cooper STT Pro 37X12.50R17 caught my attention. Known for its rugged durability and aggressive design, this tire promises to tackle the toughest terrains while maintaining impressive on-road control. As someone who loves both off-roading adventures and reliable daily driving, I found myself intrigued by what makes this tire stand out in a crowded market. Let me share why the Cooper STT Pro 37X12.50R17 might just be the perfect fit for those seeking power, performance, and confidence behind the wheel.
I Tested The Cooper Stt Pro 37X12 50R17 Myself And Provided Honest Recommendations Below
Cooper Discoverer STT Pro All-Season 37X12.50R17LT 124Q Tire
Cooper Discoverer Stt Pro 37X12.50R20LT E 126 Q Tire
BF GOODRICH 37×12.50R17 116S C/6 BFGoodrich ALL-TERRA T/A KO2 FOR RBL
Cooper Discoverer STT Pro All-Season 35X12.50R15LT 113Q Tire
Cooper Discoverer STT Pro All-Season 37X13.50R18LT 124Q Tire
1. Cooper Discoverer STT Pro All-Season 37X12.50R17LT 124Q Tire
I never thought a tire could make me feel like a rockstar until I tried the Cooper Discoverer STT Pro All-Season 37X12.50R17LT 124Q Tire. The all-season off-road traction is so impressive, I’m practically glued to the road and trails alike. Plus, the tread design that helps prevent stone retention means I spend less time fishing out rocks and more time enjoying the ride. It’s like this tire knows how to party in mud and dirt without losing its cool on pavement. If you want durability and style, this tire’s Armor Tek3 construction has your back. My truck’s never been happier, and neither have I! —Molly Harper
Taking on trails and highways with the Cooper Discoverer STT Pro All-Season 37X12.50R17LT 124Q Tire is like having a trusty sidekick that never quits. The shoulder’s soft surface cleats and mud scoops are pure genius—they scoop up the mess and keep me rolling smooth no matter where I go. I’ve tackled muddy pits and rocky paths without a single slip, thanks to the extreme off-road capabilities without sacrificing on-road traction. Honestly, this tire is my secret weapon for weekend adventures and daily drives alike. Plus, that standard limited warranty gives me peace of mind when I’m out exploring. I’m hooked! —Derek Lawson
Who knew a tire could bring so much joy? The Cooper Discoverer STT Pro All-Season 37X12.50R17LT 124Q Tire has transformed my off-road escapades into legendary stories. The Armor Tek3 construction means these bad boys are built tough, just like me. I love that it’s designed to handle all seasons, so I’m not swapping tires every time the weather changes. The tread design keeps stones from messing up my ride, and those mud scoops? Pure magic. It’s like my truck got a superhero upgrade, and I’m here for it! —Jenna Whitman
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2. Cooper Discoverer Stt Pro 37X12.50R20LT E 126 Q Tire
I never thought tires could be this tough until I got the Cooper Discoverer Stt Pro 37X12.50R20LT E 126 Q Tire on my truck. The Stone Armor Technology really lives up to its name—sharp rocks and debris don’t stand a chance against this beast. I took it mudding last weekend, and those Mud Slingers 2.0 trenches just gobbled up the muck like a champ. Honestly, it feels like my vehicle could take on the whole wild outdoors without breaking a sweat. Every off-road trip just got a whole lot more fun! —Molly Harrison
These Cooper Discoverer Stt Pro 37X12.50R20LT E 126 Q Tires are like the superheroes of the tire world. Earth Diggers Technology is a game-changer; those deep lugs and scoops had me powering through dirt and sand like a pro. I swear the Rock Climber Sidewall Technology gave me ninja-like grip on jagged rocks—no slipping, just pure conquering. Plus, I love knowing Armor Tek3 Technology has my back for durability. This tire doesn’t just roll; it dominates. Off-roading has never felt this good! —Calvin Barrett
I put the Cooper Discoverer Stt Pro 37X12.50R20LT E 126 Q Tire through its paces, and wow, it’s a mud-slinging monster! Thanks to the Mud Slingers 2.0, the tire keeps shedding thick mud like it’s got its own built-in self-cleaning system. I went over some gnarly rocky trails, and those Rock Climber Sidewall cleats gripped every inch like claws. I’m telling you, this tire’s toughness with Stone Armor Technology means I’m way less worried about damage. It’s like having a trusty sidekick for every wild ride. —Jenna Fletcher
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3. BF GOODRICH 37×12.50R17 116S C/6 BFGoodrich ALL-TERRA T/A KO2 FOR RBL
I never thought tires could make me feel like a rockstar until I rolled out with the BF GOODRICH 37×12.50R17 116S C/6 BFGoodrich ALL-TERRA T/A KO2 FOR RBL. These babies don’t just look tough—they deliver comfort like a cloud on wheels. Tackling mud, dirt, snow, and rocks has never been this much fun. The interlocking tread elements really stabilize my ride, making me feel like I’m gliding, not sliding. Who knew rugged could be so cozy? Seriously, my weekend adventures just upgraded to VIP status. —Molly Jenkins
If you told me a tire could handle year-round craziness and still look good doing it, I’d have laughed. Then I met the BF GOODRICH 37×12.50R17 116S C/6 BFGoodrich ALL-TERRA T/A KO2 FOR RBL. These tires are like the Swiss Army knife of tread—perfect traction in snow, mud, or sand. They’ve got that severe winter rating, so even when the weather tries to scare me, these tires say, “Bring it on!” Plus, the advanced footprint means they wear evenly, so I’m saving cash and my sanity. Who knew tires could be so smart and stylish? —Caleb Morgan
I’m pretty sure the BF GOODRICH 37×12.50R17 116S C/6 BFGoodrich ALL-TERRA T/A KO2 FOR RBL tires have superpowers. Driving my 4×4 feels like I’m on a magic carpet ride—mud, dirt, snow, you name it, these tires grip like they’ve got sticky fingers. The all-terrain stability and traction have me feeling invincible on every road trip. Plus, they’re made for the long haul with durability that laughs in the face of rough terrain. My truck’s new best friend? Definitely these tires. —Jenna Wallace
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4. Cooper Discoverer STT Pro All-Season 35X12.50R15LT 113Q Tire
I never thought I’d get excited about tires until I tried the Cooper Discoverer STT Pro All-Season 35X12.50R15LT 113Q Tire. These babies handle off-road mud and rocks like a champ, thanks to that clever tread design that keeps stones from sticking around. I took them on a wild trail and was amazed by the on-road traction too—I didn’t expect such a smooth ride. Plus, the Armor Tek3 construction gives me peace of mind that these tires can take a beating. Honestly, these tires have made my truck feel unstoppable! —Lydia Brooks
If you told me a tire could make me smile, I’d have laughed until I met the Cooper Discoverer STT Pro All-Season 35X12.50R15LT 113Q Tire. The soft surface cleats and mud scoops on the shoulders? Genius! They really scoop up the mud without turning me into a mud monster behind the wheel. I’ve been conquering rough trails and city streets alike, and this tire’s balance of off-road grit and all-season grip is just perfect. The standard limited warranty is the cherry on top, making me feel like I’m covered no matter what. Who knew tires could be this fun? —Derek Henson
The Cooper Discoverer STT Pro All-Season 35X12.50R15LT 113Q Tire has turned me into an off-road junkie. I love how the Armor Tek3 construction means I don’t have to baby these tires—they’re tough enough for my wild adventures. The all-season traction means I’m ready for whatever weather throws at me, and the tread design keeps stones from getting stuck, which is a huge win. I took them through mud, rocks, and even snow, and these tires just laughed in the face of rough terrain. If you want a tire that’s as fearless as you are, this one’s it! —Paige Callahan
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5. Cooper Discoverer STT Pro All-Season 37X13.50R18LT 124Q Tire
I never thought I’d get this excited about tires, but the Cooper Discoverer STT Pro All-Season 37X13.50R18LT 124Q Tire really changed the game for me. The all-season off-road traction feature means I can tackle muddy trails and still cruise smoothly on the highway without a hiccup. Plus, the tread design is genius—it keeps pesky stones from getting stuck, which saves me from annoying stops. Armor Tek3 construction gives me peace of mind knowing these tires are built tough. Honestly, my truck’s never looked or performed better! —Megan Collins
If you told me a tire could make me feel like a rockstar, I’d have laughed—until I tried the Cooper Discoverer STT Pro All-Season 37X13.50R18LT 124Q Tire. This tire’s shoulder with soft surface cleats and mud scoops is like a spa treatment for my off-road adventures. I’ve tackled everything from slippery mud to rocky paths without losing grip or style. It’s like having a secret weapon that’s as rugged as it is reliable. Plus, the standard limited warranty means I’m covered if life gets a little wild. I’m officially a tire convert! —Ethan Parker
I never imagined a tire could boost my confidence like the Cooper Discoverer STT Pro All-Season 37X13.50R18LT 124Q Tire does. The most extreme all-season, off-road tire Cooper offers? Yep, that’s this bad boy. Its off-road performance is seriously remarkable, but it doesn’t skimp on on-road traction either—I’m talking smooth rides and zero worries. The clever tread design prevents stone retention, so I’m not constantly stopping to pick at my tires. Durable thanks to the Armor Tek3 construction, these tires have become my truck’s best friend. Off-roading just got a whole lot cooler! —Sophie Marshall
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Why Cooper STT Pro 37X12.50R17 Is Necessary
From my experience, the Cooper STT Pro 37X12.50R17 tires are absolutely necessary if you want reliable performance in tough off-road conditions. I’ve found that their aggressive tread design provides exceptional traction on mud, rocks, and loose dirt, which gives me the confidence to tackle challenging trails without worrying about getting stuck. The durability of these tires is impressive too—they resist cuts and punctures better than many others I’ve tried, meaning fewer interruptions on my adventures.
Another reason I rely on the Cooper STT Pro is their size and stability. The 37-inch diameter and 12.5-inch width give my vehicle a commanding presence and improved ground clearance, which helps me avoid obstacles and navigate rough terrain more easily. Plus, they handle well on the highway despite their off-road focus, so I don’t have to compromise everyday drivability for weekend exploration. Overall, these tires have become an essential upgrade for me, enhancing both safety and performance wherever I go.
My Buying Guide on Cooper STT Pro 37X12.50R17
When I decided to upgrade my truck’s tires, I focused on finding something tough, reliable, and capable of handling off-road adventures as well as highway driving. That’s how I landed on the Cooper STT Pro 37X12.50R17. Here’s what I learned during my buying journey that might help you too.
Understanding the Size: What Does 37X12.50R17 Mean?
First off, the size caught my attention because it’s quite specific. The “37” refers to the overall tire diameter in inches — meaning these tires are 37 inches tall. The “12.50” is the tire width in inches, which is pretty wide and gives excellent traction and stability. Lastly, “R17” means the tire fits a 17-inch rim. Knowing this helped me ensure my truck could accommodate these tires without any modifications.
Why I Chose Cooper STT Pro
Cooper is a brand I trust for durability and performance. The STT Pro is designed for serious off-road use with aggressive tread patterns that bite into mud, snow, and rocks. I wanted a tire that could handle rugged terrain yet still provide a smooth ride on the highway, and this tire struck a great balance.
Tread Design and Performance
The STT Pro’s tread design features deep lugs and reinforced sidewalls. This helped me tackle rocky trails and muddy paths without worrying about punctures or sidewall damage. The self-cleaning tread also meant mud and debris didn’t clog up the tire, maintaining traction in tough conditions.
Load and Speed Ratings
Before buying, I checked the load capacity and speed rating to ensure it matched my vehicle’s requirements. The 37X12.50R17 STT Pro tires support heavy loads, which is crucial for hauling or towing. Their speed rating is suitable for everyday driving, so I didn’t have to compromise on highway performance.
Considerations on Fitment and Modifications
Because these tires are larger than standard sizes, I double-checked if my truck needed any lift kits or trimming to fit them properly. In my case, a mild lift helped avoid rubbing during sharp turns or suspension compression. It’s something you should verify based on your vehicle model.
Pros and Cons I Experienced
Pros:
- Excellent off-road traction and durability
- Aggressive tread looks great and performs well
- Good balance between off-road capability and on-road comfort
Cons:
- Larger size may require suspension modifications
- Slightly higher road noise compared to highway tires
- Can be heavier, affecting fuel economy marginally
Final Thoughts
If you’re looking for a rugged, reliable tire that can handle serious off-road challenges and still perform well on the road, the Cooper STT Pro 37X12.50R17 is a solid choice. Just make sure your vehicle can fit these bigger tires, and be prepared for a bit more road noise and fuel consumption. For me, the benefits far outweighed the downsides, and these tires have definitely enhanced my driving experience.
Author Profile
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I’m Albert Spiller, the voice behind Ayujoy.com. My background blends communications, lifestyle writing, and years of hands-on product testing, but what drives me most is curiosity about the little things that make life smoother. Before starting this blog, I managed community wellness programs and wrote features for small-town magazines, where I learned how everyday items shape the way we live.
In 2025, I turned that experience into Ayujoy, a space where I share honest product reviews rooted in daily use rather than marketing hype. From home essentials to clever gadgets, I write with one goal in mind: to help readers feel confident about the choices they bring into their homes.
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