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Mastercraft
Mastercraft MSC Courser HXT LT265/70R18/10
Mastercraft MSC Courser HXT LT265/70R18/10
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Mastercraft
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/week
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Width:
10.70
(in)
Height:
32.64
(in)
Depth:
18.00
(in)
SKU:
175019001
$322.00
Lease-to-own for as low as
/week
Get Started
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Looking for a 265/70R18 highway tire? The Mastercraft Courser HXT is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 265/70R18 means
In the size 265/70R18, 265 is the section width in millimeters (10.43 in), 70 is the aspect ratio — the sidewall stands 70% as tall as the tire is wide, or 185.5 mm (7.30 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 32.61 inches, turning roughly 619 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 manufacturer lists the overall diameter of this specific tire as 18 inches — when clearance is tight, go by the published figure rather than the nominal size math.
The service description on this tire decodes to a load index of 124 — a maximum load of 3,527 lbs per tire, or 121 (3,197 lbs) per tire when mounted as duals. The speed symbol S corresponds to a maximum sustained speed of 112 mph.
Load Range E corresponds to a 10-ply rating.
Specifications
| Size | LT265/70R18/10 |
| Tire Type | Highway |
| Service Description | 124/121S |
| Load Index | 124/121 |
| Speed Rating | S |
| Load Range | E (10 Ply) |
| Section Width (mm) | 265 |
| Aspect Ratio | 70 |
| Overall Diameter (in) | 18 |
| Tread Depth (/32") | 14.5 |
| Warranty | 50K |
Frequently asked questions
What kind of tire is the Mastercraft Courser HXT?
The Mastercraft Courser HXT in 265/70R18 is a highway tire.
What warranty does the Mastercraft Courser HXT carry?
The manufacturer's warranty on this tire is 50K.
What does 124/121S mean on the Mastercraft Courser HXT?
124/121S breaks down as load index 124 — rated for 3,527 lbs per tire (121, or 3,197 lbs, in dual fitment) — with an S speed rating, good for a maximum sustained 112 mph.
Keep shopping
Shop all 265/70R18 tires, see every Mastercraft Courser HXT size, or view all tires at ThreePiece.us.
- BRAND:
- Mastercraft
- Model:
- MSC Courser HXT
- Size:
- LT265/70R18/10
- Aspect Ratio:
- 70
- Load Index:
- 124/121
- Load Range:
- E (10 Ply)
- Section Width:
- 265
- Service Description:
- 124/121S
- Speed Index:
- S
- Temperature:
- N/A
- Tire Rim Diameter:
- 18
- Tire Type:
- Highway
- Traction:
- N/A
- Tread Wear:
- N/A
- Tread Depth:
- 14.5
- UQTG:
- N/A
- Warranty:
- 50K
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