Dunlop Winter Maxx SJ8 275/65R18 116R - 10037342

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What 275/65R18 means

In the size 275/65R18, 275 is the section width in millimeters (10.83 in), 65 is the aspect ratio — the sidewall stands 65% as tall as the tire is wide, or 178.8 mm (7.04 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 32.07 inches, turning roughly 629 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 116 — a maximum load of 2,756 lbs per tire. The speed symbol R corresponds to a maximum sustained speed of 106 mph.

Specifications

Frequently asked questions

Will 275/65R18 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 275/65R18, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 275/65R18 tire in stock to compare options.

What does 116R mean on the Dunlop Winter Maxx SJ8?

116R breaks down as load index 116 — rated for 2,756 lbs per tire — with an R speed rating, good for a maximum sustained 106 mph.

What kind of tire is the Dunlop Winter Maxx SJ8?

The Dunlop Winter Maxx SJ8 in 275/65R18 is a winter tire.

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