I am selling a NEW ULTIMAX PRO BELT #146-4540U4

The NEW  is primarily used on specific Arctic Cat M-series snowmobiles from the 2005-2006 model years. 
Compatible Snowmobiles 
The 
Ultimax Pro Drive Belt #146-4540U4
 (Carlisle part number) is designed for modern mid-horsepower snowmobiles
. It is compatible with the following models, according to multiple retailers and fitment guides: 
The belt has a width of 1 7/16 inches and an outside circumference of 45 13/64 inches.

Please check with your local dealership to ensure this part will fit on your machine.