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Get technical:
These IROK Bias Ply tires from Interco feature a design that comes from years of experience, producing a tire with traction as good as it gets in mud, snow, and rock climbing. They have directional tread in the famous 3-stage lug design, scooped lugs, blade and molded siping, special sidewall features, an extra-tough cord, and cut-resistant compounds in a super traction package.
Features & Benefits
- Tread is designed for use in mud and other off-road terrains
- Cut-resistant provides added durability

Mud Terrain tires offer drivers traction on off-road terrains such as mud, dirt, sand, gravel, and rock, and are commonly used on CUVs, SUVs, light trucks, and jeeps.
Designed for use on light trucks and SUVs such as the Ram 1500, Ford F-150, and Chevrolet Silverado. Light Truck tires are strong enough to support a truck's heavier weight and whatever else is being hauled or towed.
This product is not covered by a manufacturer’s treadlife warranty.
The maximum load carrying strength at the specified inflation pressure, also known as ply rating
The maximum carrying capacity for a tire determined by the manufacturer
The side of the tire between the tread and rim, with cosmetic branding as well as information about the tire including manufacturer, model, size, etc.
An identifier of a particular tire line and size combination assigned by the tire manufacturer.
The highest inflation pressure (measured in pounds of force per square inch, PSI) the tire is designed to contain, and should only be used when called for by the vehicle placard
Measured in 32nds of an inch, this metric shows how much tread life is left on a tire, with the tire's traction & stopping capabilities greatly diminished at 4/32nds and less. Tire manufacturers include "tire wear bars" at 2/32nds to indicate when your tire is worn out
The measurement of width from a tires inner sidewall to the outer sidewall
The diameter of a tire that is inflated without any load applied
- 33x13.50R20LT
$376.96
Label Value Width LT33 Ratio 13.50R Inflation Pressure 50 Tread Depth 21 Width Range NA Sidewall BW Tread Width NA Sidewall BW - 35x14.50R20LT
$425.96
Label Value Width LT35 Ratio 14.50R Inflation Pressure 50 Tread Depth 21 Width Range NA Sidewall BW Tread Width NA Sidewall BW - 36x13.50R20LT
$411.96
Label Value Width LT36 Ratio 13.50R Inflation Pressure 65 Tread Depth 21 Width Range NA Sidewall BW Tread Width NA Sidewall BW - 39.50x13.50R20LT
$625.99
Label Value Width LT39.5 Ratio 13.50R Inflation Pressure 65 Tread Depth 21 Width Range NA Sidewall BW Tread Width NA Sidewall BW
- 35x14.50R18LT
$508.99
Label Value Width LT35 Ratio 14.50R Inflation Pressure 50 Tread Depth 21 Width Range NA Sidewall BW Tread Width NA Sidewall BW - 41x14.50R18LT
$661.99
Label Value Width LT41 Ratio 14.50R Inflation Pressure 50 Tread Depth 19 Width Range NA Sidewall BW Tread Width NA Sidewall BW
- 36x13.50R15LT
$466.99
Label Value Width LT36 Ratio 13.50R Inflation Pressure 35 Tread Depth 21 Width Range NA Sidewall BW Tread Width NA Sidewall BW
- 36x13.50R16LT
$487.99
Label Value Width LT36 Ratio 13.50R Inflation Pressure 65 Tread Depth 21 Width Range NA Sidewall BW Tread Width NA Sidewall BW - 39.50x13.50R16LT
$605.99
Label Value Width LT39.5 Ratio 13.50R Inflation Pressure 65 Tread Depth 21 Width Range NA Sidewall BW Tread Width NA Sidewall BW - 41x14.50R16LT
$646.99
Label Value Width LT41 Ratio 14.50R Inflation Pressure 50 Tread Depth 20 Width Range NA Sidewall BW Tread Width NA Sidewall BW
- 36x13.50R16.5LT
$485.99
Label Value Width LT36 Ratio 13.50R Inflation Pressure 65 Tread Depth 21 Width Range NA Sidewall BW Tread Width NA Sidewall BW - 39.50x13.50R16.5LT 135
$594.99
Label Value Width LT39.5 Ratio 13.50R Inflation Pressure 65 Tread Depth 21 Width Range NA Sidewall BW Tread Width NA Sidewall BW
- 36x13.50R17LT
$488.99
Label Value Width LT36 Ratio 13.50R Inflation Pressure 65 Tread Depth 21 Width Range NA Sidewall BW Tread Width NA Sidewall BW - 37x12.50R17LT
$544.99
Label Value Width LT37 Ratio 12.50R Inflation Pressure 65 Tread Depth 21 Width Range NA Sidewall BW Tread Width NA Sidewall BW - 39.50x13.50R17LT
$621.99
Label Value Width LT39.5 Ratio 13.50R Inflation Pressure 65 Tread Depth 21 Width Range NA Sidewall BW Tread Width NA Sidewall BW - 41x14.50R17LT
$633.99
Label Value Width LT41 Ratio 14.50R Inflation Pressure 50 Tread Depth 20 Width Range NA Sidewall BW Tread Width NA Sidewall BW
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