Go to the Polaris Parts House website, which is run by Babbitt's Online (see "Resources").
Scroll down until you see Polaris Snowmobile Parts. Click on it.
Enter in the information about what you're looking for. The more specific the information you have, the better. Polaris Parts House allows you to enter not just the model number but also the specific parts number. If you don't have the specific numbers, Polaris Parts House will walk you through finding the part through diagrams of its different snowmobile models.
Add the part to your virtual cart and proceed to check out.
Go to Polaris Industries official website (see "Resources").
Click on the top of the page where it says "Dealer Locator."
Enter your zip code or city or state in the search cue, and it will give you information about your nearest Polaris Snowmobile dealership.
Visit the dealership with the details about the part you require, and it can order it for you.