325/40R21 Tire Pressure
Discover the load limits at various inflation pressures for 325/40R21 tires to ensure your vehicle's tires are properly inflated for a safe and comfortable drive.
325/40R21 is a Metric tire that comes in a Standard Load (SL) range and an Extra Load (XL) range.
Standard load (SL) size has a load index of 113 with a maximum load capacity of 2535 lbs at 36 psi, capable of supporting up to 2535 pounds when inflated to its maximum air pressure of 36 pounds per square inch.
Extra load (XL) size has a load index of 116 with a maximum load capacity of 2756 lbs at 42 psi, capable of supporting up to 2756 pounds when inflated to its maximum air pressure of 42 pounds per square inch.
325/40R21 Tire Pressure Chart
| Tire Size | Load Index | Load Range | 26 psi | 29 psi | 32 psi | 35 psi | 36 psi | 38 psi | 41 psi | 42 psi |
|---|---|---|---|---|---|---|---|---|---|---|
| 325/40R21 | 113 | SL | 1942 lbs | 2121 lbs | 2293 lbs | 2465 lbs | 2535 lbs (113 SL) | |||
| 325/40R21 | 116 | XL | 1876 lbs | 2046 lbs | 2216 lbs | 2379 lbs | 2434 lbs | 2542 lbs | 2701 lbs | 2756 lbs (116 XL) |
Use the tire pressure calculator to determine proper inflation for new tire size when replacing 325/40R21 tires.
All listed guides, 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.