What is oil capacity of a 2003 polaris sportsman 400?

The oil capacity of a 2003 Polaris Sportsman 400 is approximately 2 quarts (or about 1.9 liters) when using a filter. It's important to refer to the owner's manual for specific recommendations and to ensure proper maintenance. Always check the oil level with the dipstick after adding oil to make sure it is at the correct level.