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Cooper Tires COO Discoverer AT3 4S 265/60R18
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Cooper Tires
SKU:
171048002
|
- UPC:
- 00029142972068
$ 1,268.00 set | $317.00 each
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- Width:
- 10.70 (in)
- Height:
- 30.55 (in)
- Depth:
- 18.00 (in)
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The Cooper Tires Discoverer AT3 4S in 265/60R18 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 265/60R18 means
In the size 265/60R18, 265 is the section width in millimeters (10.43 in), 60 is the aspect ratio — the sidewall stands 60% as tall as the tire is wide, or 159.0 mm (6.26 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 30.52 inches, turning roughly 661 revolutions per mile. Overall diameter is what matters for speedometer accuracy and clearance when you change sizes, so compare it — not just the width — against your current tire.
The service description on this tire decodes to a load index of 110 — a maximum load of 2,337 lbs per tire. The speed symbol T corresponds to a maximum sustained speed of 118 mph.
Specifications
| Size | 265/60R18 |
| Tire Type | All Terrain |
| Service Description | 110T |
| Load Index | 110 |
| Speed Rating | T |
| Load Range | SL |
| Section Width (mm) | 265 |
| Aspect Ratio | 60 |
| Overall Diameter (in) | 30.55 |
| Tread Depth (/32") | 12.5 |
| Treadwear | 620 |
| Traction Grade | A |
| Temperature Grade | B |
| UTQG | 620AB |
| Warranty | 65K |
Frequently asked questions
What does 110T mean on the Cooper Tires Discoverer AT3 4S?
110T breaks down as load index 110 — rated for 2,337 lbs per tire — with a T speed rating, good for a maximum sustained 118 mph.
What kind of tire is the Cooper Tires Discoverer AT3 4S?
The Cooper Tires Discoverer AT3 4S in 265/60R18 is a all terrain tire.
What are the treadwear and warranty ratings on the Cooper Tires Discoverer AT3 4S?
This tire carries a treadwear grade of 620, traction grade A, temperature grade B under UTQG. The manufacturer's warranty is 65K.
Keep shopping
Shop all 265/60R18 tires, see every Cooper Tires Discoverer AT3 4S size, explore all terrain tires, or view all tires at ThreePiece.us.
- BRAND:
- Cooper Tires
- Model:
- COO Discoverer AT3 4S
- Size:
- 265/60R18
- Aspect Ratio:
- 60
- Load Index:
- 110
- Load Range:
- SL
- Section Width:
- 265
- Service Description:
- 110T
- Speed Index:
- T
- Temperature:
- B
- Tire Rim Diameter:
- 30.55
- Tire Type:
- All Terrain
- Traction:
- A
- Tread Wear:
- 620
- Tread Depth:
- 12.5
- UQTG:
- 620AB
- Warranty:
- 65K
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