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Cooper
Cooper Discoverer STT Pro 37X12.50R20LT 126Q - 170309006
Cooper Discoverer STT Pro 37X12.50R20LT 126Q - 170309006
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Shop the Cooper Discoverer STT Pro 37X12.5R20 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 37X12.5R20 means
Flotation sizes read in inches: 37X12.5R20 stands about 37 inches tall, measures about 12.5 inches wide, and mounts on a 20-inch wheel. At that nominal height it turns roughly 545 revolutions per mile. Overall diameter is the number to watch for clearance and speedometer accuracy when you size up.
The service description on this tire decodes to a load index of 126 — a maximum load of 3,748 lbs per tire. The speed symbol Q corresponds to a maximum sustained speed of 99 mph.
Specifications
| Size | 37X12.50R20LT |
| Tire Type | All Season |
| Service Description | 126Q |
| Load Index | 126 |
| Speed Rating | Q |
| Load Range | 10 |
| Section Width (mm) | 12.5 |
| Aspect Ratio | 37 |
| Overall Diameter (in) | 36.69 |
| Tread Depth (/32") | 21 |
Frequently asked questions
Will 37X12.5R20 tires fit my vehicle?
Check the size molded into your current tire's sidewall or the tire placard inside the driver's door jamb — if it reads 37X12.5R20, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right.
What does 126Q mean on the Cooper Discoverer STT Pro?
126Q breaks down as load index 126 — rated for 3,748 lbs per tire — with a Q speed rating, good for a maximum sustained 99 mph.
What kind of tire is the Cooper Discoverer STT Pro?
The Cooper Discoverer STT Pro in 37X12.5R20 is a all season tire.
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Browse Cooper tires, see every Cooper Discoverer STT Pro size, or view all tires at ThreePiece.us.
- BRAND:
- Cooper
- Model:
- Discoverer STT Pro
- Size:
- 37X12.50R20LT
- Aspect Ratio:
- 37
- Load Index:
- 126
- Load Range:
- 10
- Section Width:
- 12.5
- Service Description:
- 126Q
- Speed Index:
- Q
- Tire Rim Diameter:
- 36.69
- Tire Type:
- All Season
- Tread Depth:
- 21
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