Polaris Pro X 440 Snowmobile (2004)

The 2004 Polaris Pro X 440 was primarily known as the Polaris Pro XR 440, a highly specialized snowmobile designed exclusively for snocross racing. This model was not intended for general consumer use and required a race license for purchase when new. It featured a high-performance 440cc liquid-cooled engine, often called the "440 Liberty," known for its high-revving nature (9500-10,000 rpm) and championship-level capabilities. Unlike consumer models, it lacked oil injection, a common trait for race sleds. The 2004 Pro XR 440 represented a significant evolution from the 2003 440 Pro X, incorporating numerous updates focused on racing performance and ergonomics. Key changes included an all-new over-the-engine steering post for improved rider positioning and weight centralization, and a lighter, more rigid Pro XR race chassis. The suspension was also upgraded with a longer front torque arm to prevent bottoming out and standard Walker Evans compression adjustable shocks, featuring a larger reservoir on the rear track shock for sustained performance. Engine enhancements included stronger VForce reeds for better throttle response and an improved Dragon ignition system for superior holeshot performance. Aesthetically, it sported a distinct black nosepan, Indy Red hood, and new graphics. Q: How do I ensure this part fits my 2004 Polaris Pro X 440?

A: Please use our year and model selector at the top of the page to confirm compatibility with your specific snowmobile.