Ultimax Snowmobile Belt- 138-4416U4

This is the Ultimax PRO snowmobile belt, part number 138-4416U4. It's built to give mid-horsepower snowmobiles the best performance and longest belt life. The PRO belt has a thicker cross-section than stock, which increases the surface area that contacts the clutch. This means less slippage across a wider range of speeds, leading to quicker acceleration when you need it.

The cog design on both the top and bottom of this belt helps support the cord, increasing output and dissipating heat. This updated design also aids flexibility, helping the belt run cooler and handle the power demands of modern snowmobiles. It's constructed with fiber-loaded rubber and strong aramid fiber cord, which grips the clutch and maintains performance without stretching over time. This is the fifth generation of this belt design, benefiting from decades of refinement and steady improvements.