Confirm Tire SizeWhere can I find my tire size?
Shopping for tires? Select tire size to proceed.
2010 Mercury Mountaineer Base
Mercury equips your vehicle with more than one possible size during production.
Please select the size installed on your vehicle from the choices below.
Original Equipment Wheel Diameter: 17"
P245/65R17Original Equipment Wheel Diameter: 18"
P235/65R18Original Equipment Wheel Diameter: 20"
P255/50R20