Tire Brand: Cooper

Tire Model: Discoverer STT PRO

Check Cooper Discoverer STT PRO tire size chart to find maximum tire inflation as set by manufacturer for your Cooper Discoverer STT PRO tire size. Remember that tire pressure value printed on Cooper Discoverer STT PRO tire sidewall is a maximum tire pressure that Cooper Discoverer STT PRO tire can support when carrying its maximum weight capacity, and it is not a recommended tire pressure setting for your vehicle.

Keep in mind that Cooper Discoverer STT PRO tires can naturally lose 1 to 2 psi of tire pressure monthly, so check Cooper Discoverer STT PRO tire pressure regularly to keep tires inflated at recommended level.

Tire pressure is also affected by changes in temperature. As a rule, tire pressure for Cooper Discoverer STT PRO tires will change by about 1 psi for every 10 degrees Fahrenheit change in atmospheric temperature. Maintain proper Cooper Discoverer STT PRO winter tire pressure by compensating air pressure to your vehicle's recommended tire pressure level when temperatures drop.


Cooper Discoverer STT PRO Tire Inflation Chart

Cooper Discoverer STT PRO tire pressure chart with maximum tire inflation for each tire size.

Tire Size Load Index Speed Rating Max Tire Pressure
30x9.50R15 104 Q 50 psi
31x10.50R15 109 Q 50 psi
32x11.50R15 113 Q 50 psi
33x12.50R15 108 Q 35 psi
35x12.50R15 113 Q 35 psi
35x12.50R20 121 Q 65 psi
35x12.50R22 117 Q 65 psi
35x13.50R20 122 Q 65 psi
37x12.50R17 124 Q 50 psi
37x12.50R20 126 Q 65 psi
37x13.50R17 121 Q 65 psi
37x13.50R18 124 Q 50 psi
37x13.50R20 127 Q 65 psi
37x13.50R22 123 Q 65 psi
38x13.50R20 123 Q 50 psi
38x15.50R20 128 Q 65 psi
40x13.50R17 121 Q 35 psi
LT215/85R16 112 Q 80 psi
LT225/75R16 112 Q 80 psi
LT235/85R16 116 Q 80 psi
LT245/75R16 116 Q 80 psi
LT255/75R17 108 Q 50 psi
LT265/70R17 118 Q 80 psi
LT265/75R16 120 Q 80 psi
LT275/65R18 120 Q 80 psi
LT275/65R20 123 Q 80 psi
LT275/70R18 122 P 80 psi
LT285/65R18 122 Q 80 psi
LT285/70R17 118 Q 80 psi
LT285/75R16 123 Q 80 psi
LT295/55R20 120 Q 80 psi
LT295/60R20 123 Q 80 psi
LT295/65R20 126 Q 80 psi
LT295/70R17 118 Q 80 psi
LT295/70R18 126 P 80 psi
LT305/55R20 118 Q 65 psi
LT305/60R18 118 Q 65 psi
LT305/65R17 118 Q 65 psi
LT305/70R16 121 Q 65 psi
LT305/70R18 123 Q 65 psi
LT315/70R17 118 Q 65 psi
LT315/75R16 124 Q 65 psi
LT325/50R22 122 Q 65 psi
LT325/65R18 124 Q 65 psi

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