Section Width105 mm (4.1")
Aspect Ratio366%
Rim Diameter43"
Overall Diameter1861 mm (73.3")
Sidewall Height384 mm
Circumference5846 mm
105/366R43 — Buy Tires

Everything to know about the 105/366R43 tire size

Size geometry

A 105/366R43 tire has a 105mm section width and a 366% aspect ratio, mounted on a 43-inch rim. Sidewall height works out to 384.3mm (15.13") and overall outside diameter is 1860.8mm (73.26"). At highway speed the tire completes about 171 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 105/366R43 is unavailable, the closest same-diameter substitutes on the same rim are 95/405R43 and 115/334R43. Both keep your speedometer reading within 1% — safe for daily use, ABS, and stability control. Always verify load and speed ratings before swapping.

Plus / minus sizing options

For a 105/366R43 you can upsize to 115/323R44 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 95/418R42 (minus-one) for a softer ride or winter setup. Both stay inside the Âą3% diameter tolerance that ABS and TPMS systems expect.

Vehicle compatibility

0 vehicles in our database run the 105/366R43 tire size from the factory. Aftermarket fitment depends on rim width, offset, and clearance — match these specs to your wheel before purchasing tires.

Vehicles Using 105/366R43

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