285/40R21 Tire Pressure Chart

Proper tire load capacity at specified tire inflation pressures for 285/40R21 tires.

285/40R21 is a Metric tire size that comes with 1 tire load index and load range option.

Tire Size 26 psi 29 psi 32 psi 35 psi 36 psi (SL) 38 psi (XL) 41 psi 42 psi
XL 109
1661 lbs 1783 lbs 1901 lbs 2015 lbs 2052 lbs 2126 lbs 2235 lbs 2271 lbs Show Specs

285/40R21 109 XL is an Extra Load tire with tire load index of 109 and maximum tire load capacity of 2271 lbs @ 42 psi.

Calculate proper tire load capacity for 285/40R21 109 XL tire within inflation range of 26 psi to 42 psi. Inflating 285/40R21 109 XL tire over 42 psi will not increase its maximum load carrying capacity of 2271 pounds.

When replacing vehicle's original equipment tires with 285/40R21 109 XL tire, calculate proper replacement tire inflation based on original tire's load capacity at its recommended tire pressure. Never overload 285/40R21 109 XL tire above its maximum load capacity of 2271 lbs.

Original Tire
is LT-Metric

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.

Tires with 285/40R21 tire size

14 tire models are available in 285/40R21 tire size. Click on tire model to check its maximum tire inflation and tire load capacity.

Vehicles with 285/40R21 tire size

285/40R21 tire size is used for original equipment tires on 2 vehicles. Click on vehicle model to find its recommended tire pressure for 285/40R21 tires.