Nitto NT421Q Tire Pressure Chart

Nitto NT421Q

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 range or ply rating. Check Nitto NT421Q tire sidewall for more information. Tire psi value printed on the sidewall is the maximum air pressure that Nitto NT421Q tire can be inflated to support its corresponding maximum weight capacity, and not necessarily the recommended tire pressure for your vehicle. Never overload or overinflate Nitto NT421Q tires beyond the maximum tire load capacity and maximum tire inflation values indicated on the tire sidewall.

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

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

225/55R18 102V

102 1874 lbs 50 psi

225/55R19 103V

103 1930 lbs 50 psi

225/60R17 103V

103 1930 lbs 50 psi

225/65R17 106H

106 2095 lbs 50 psi

235/50R19 103V

103 1930 lbs 50 psi

235/55R18 104V

104 1985 lbs 50 psi

235/55R19 105W

105 2040 lbs 50 psi

235/55R20 105W

105 2040 lbs 50 psi

235/60R17 106H

106 2095 lbs 50 psi

235/60R18 107W

107 2150 lbs 50 psi

235/65R17 108H

108 2205 lbs 50 psi

235/65R18 110H

110 2337 lbs 50 psi

245/50R20 105V

105 2040 lbs 50 psi

245/55R19 107H

107 2150 lbs 50 psi

245/60R18 109H

109 2271 lbs 50 psi

245/65R17 111H

111 2403 lbs 50 psi

255/45R20 105W

105 2040 lbs 50 psi

255/50R19 107V

107 2150 lbs 50 psi

255/50R20 109V

109 2271 lbs 50 psi

255/55R18 109V

109 2271 lbs 50 psi

255/55R19 111V

111 2403 lbs 50 psi

255/55R20 110H

110 2337 lbs 50 psi

255/60R17 110V

110 2337 lbs 50 psi

255/60R19 113H

113 2536 lbs 50 psi

255/65R18 115H

115 2679 lbs 50 psi

265/50R19 110V

110 2337 lbs 50 psi

265/50R20 111V

111 2403 lbs 50 psi

265/60R18 114V

114 2602 lbs 50 psi

265/65R18 114H

114 2602 lbs 51 psi

275/40R20 106W

106 2095 lbs 50 psi

275/45R20 110W

110 2337 lbs 50 psi

275/50R20 113H

113 2536 lbs 50 psi

275/55R17 109V

109 2271 lbs 51 psi

275/55R20 117V

117 2833 lbs 50 psi

275/60R20 115H

115 2679 lbs 51 psi

285/45R22 114V

114 2602 lbs 50 psi

All listed data is for informational purposes only. TirePsi.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. For individual tire size, refer to its load and inflation table.

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