Nitto NT421Q Tire Pressure Chart

Nitto NT421Q
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Nitto NT421Q tires come in 36 tire sizes with maximum tire load capacity of 1874 pounds to 2833 pounds and maximum tire inflation of 50 psi to 51 psi.

Nitto NT421Q tire load capacity and tire inflation settings may vary based on tire load index / load range. Check Nitto NT421Q tire sidewall for more information. Tire inflation and load capacity values printed on the sidewall represent the maximum air pressure Nitto NT421Q tire can be inflated to support its maximum load capacity, and not necessarily the recommended tire pressure for your vehicle. Never overload or overinflate Nitto NT421Q tires beyond the maximum inflation and load capacity values indicated on the tire sidewall.

Select Nitto NT421Q tire size for its maximum tire inflation and load capacity.

Tire Size Max Load Capacity
(single / dual rear wheels)
Maximum Tire Pressure

225/55R18 102V

1874 lbs 50 psi

225/55R19 103V

1929 lbs 50 psi

225/60R17 103V

1929 lbs 50 psi

225/65R17 106H

2094 lbs 50 psi

235/50R19 103V

1929 lbs 50 psi

235/55R18 104V

1984 lbs 50 psi

235/55R19 105W

2039 lbs 50 psi

235/55R20 105W

2039 lbs 50 psi

235/60R17 106H

2094 lbs 50 psi

235/60R18 107W

2149 lbs 50 psi

235/65R17 108H

2205 lbs 50 psi

235/65R18 110H

2337 lbs 50 psi

245/50R20 105V

2039 lbs 50 psi

245/55R19 107H

2149 lbs 50 psi

245/60R18 109H

2271 lbs 50 psi

245/65R17 111H

2403 lbs 50 psi

255/45R20 105W

2039 lbs 50 psi

255/50R19 107V

2149 lbs 50 psi

255/50R20 109V

2271 lbs 50 psi

255/55R18 109V

2271 lbs 50 psi

255/55R19 111V

2403 lbs 50 psi

255/55R20 110H

2337 lbs 50 psi

255/60R17 110V

2337 lbs 50 psi

255/60R19 113H

2535 lbs 50 psi

255/65R18 115H

2679 lbs 50 psi

265/50R19 110V

2337 lbs 50 psi

265/50R20 111V

2403 lbs 50 psi

265/60R18 114V

2601 lbs 50 psi

265/65R18 114H

2601 lbs 51 psi

275/40R20 106W

2094 lbs 50 psi

275/45R20 110W

2337 lbs 50 psi

275/50R20 113H

2535 lbs 50 psi

275/55R17 109V

2271 lbs 51 psi

275/55R20 117V

2833 lbs 50 psi

275/60R20 115H

2679 lbs 51 psi

285/45R22 114V

2601 lbs 50 psi

All listed data and/or calculations are for informational purposes only. TirePressure.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information. Always refer to vehicle owner's manual for recommended tire pressure settings. Never overinflate or overload a tire beyond its maximum capabilities listed on sidewall.

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