305/55R20 tires
Prices, best picks and current deals for 305/55R20, a pickup trucks size fitted to Ford F-250, Ram 2500, Toyota Tundra and more.
Yes, this fits your Toyota Tundra. 305/55R20 is the original size on the 2007-2021 Toyota Tundra.
The sticker inside the driver's door is still the final word, because trim and wheel package can change the size. Back to every Toyota Tundra size.
What 305/55R20 tires cost
Milestar Patagonia X/T
Lowest price that still brakes and wears acceptably. Fine for a second car or low annual mileage.
Listed as Milestar Patagonia X/T 305/55R20 125/122Q Rugged Terrain Light Truck Tires
Toyo Open Country A/T III
The value sweet spot: long mileage warranty, solid wet grip, sane price.
Listed as Toyo Open Country A/T III 305/55R20 116S All Terrain Off-Road Light Truck Tires
Nitto Ridge Grappler
The strongest wet and snow braking and the longest tread life among what is stocked in this size. Worth it if you keep the car.
Listed as Nitto Ridge Grappler 305/55R20 116Q Rugged Terrain Light Truck Tires
Prices are per tire, before mounting and balancing. A set of four in the mid range comes to roughly $964 to $1,592, and a brand rebate can take another $50 to $110 off, see this month's deals.
Cheapest 305/55R20 right now
Roadtrack Terrena AT Extreme 305/55R20 121/118S Off-Road Light Truck Tires
$191.99per tire $767.96 for a set of four
136 tires in this size, priced straight from SimpleTire's own product feed, read 1 October 2026. Stock and prices move daily, so check the shop for today's figure.
See every 305/55R20 tire in stock at SimpleTire
About the 305/55R20 size
Wide 33 in aftermarket size (33.2 x 12.5 in), LT load range D/E. Needs 9-10 in wide wheels; M/T and R/T tread dominate.
The numbers mean: 305 mm section width, sidewall height 55 % of that width, and a 20-inch rim. Overall diameter works out to about 33.2 inches. Any replacement has to match all three, and the load index and speed rating on your door sticker must be met or exceeded. Our guide on reading a tire size walks through it.
Vehicles that use 305/55R20
- Ford F-250 (2005-2024, 33 in upsize)
- Ram 2500 (2010-2024, upsize)
- Toyota Tundra (2007-2021, lifted upsize)
Confirm on the door-jamb sticker before ordering. Optional wheel packages often change the size within the same model.
Which type of 305/55R20 tire?
All-Terrain Tires
Pickup, Jeep and SUV owners who tow, drive gravel or dirt roads, or need real traction in snow and mud.
Mud-Terrain Tires
Off-road enthusiasts with lifted trucks or Jeeps that see mud, sand and rock regularly.
Highway Truck & SUV Tires
Pickup and SUV owners who commute, haul the family or tow on pavement and want quiet, long tread life and good fuel economy.
Frequently asked questions
How much do 305/55R20 tires cost?
Expect $192–$241 per tire for a budget brand, $241–$398 for a mid-range tire like the Toyo Open Country A/T III, and $398–$520 for a premium tire like the Nitto Ridge Grappler. A set of four therefore starts at about $768. Add roughly $15 to $45 per tire for mounting and balancing.
What vehicles use 305/55R20 tires?
305/55R20 is original equipment on Ford F-250 (2005-2024, 33 in upsize), Ram 2500 (2010-2024, upsize) and Toyota Tundra (2007-2021, lifted upsize), among others. Always confirm with the sticker inside your driver's door, because trim levels and wheel packages can change the size.
What is the best 305/55R20 tire?
For most drivers our mid-range pick, the Toyo Open Country A/T III, is the sweet spot of price and tread life. If you keep the vehicle a long time or drive in heavy rain and snow, the Nitto Ridge Grappler is worth the extra. On a tight budget the Milestar Patagonia X/T is a sound choice.
Can I replace just one or two 305/55R20 tires?
On a front- or rear-wheel-drive car, yes: replace in pairs on the same axle and put the newer pair on the rear. On all-wheel-drive vehicles most makers want all four replaced together, or a new tire shaved to match, because a difference in circumference strains the drivetrain.