Ultimax PRO U4 Snowmobile Belt 144-5018U4 (Discontinued)

Ultimax PRO features a thicker cross section so more surface area contacts the clutch. This means less slippage over a broader speed range for quicker acceleration. The new cog design dissipates heat and aids flexibility. A cooler running belt delivers enhanced performance and longer belt life. Decades of advancement and experience are built into every Ultimax belt. Ultimax PRO is designed with high-strength materials to handle every riding style from ditch-banging, to deep powder to trail riding. Over a million miles a year of documented field testing ensure that Ultimax belts stay ahead of the pack in value and performance. Features:
Designed for modern mid-power snowmobiles
Top and bottom cog give greater cord support - meaning greater power capability - without sacrificing flexibility
Ultimax PRO runs cooler to better handle the power demands of today's machines
Fifth generation belt with decades of refinement and steady improvements
One Year Warranty
Proudly made in the U.S.A.
Fiber-loaded rubber designed to grip the clutches and to stay that way over the life of the belt
Strong and stable aramid cord for zero stretch and maximum tensile strength
Built with modern methods to reduce variability and eliminate "classic" failure modes
Every Ultimax PRO belt is manufactured using new processes that reduce dimensional variation so every belt performs consistently
Dimensions match OE in cord length and width, meaning your sled will shift like new
Dimensions are held to tighter tolerances than OE belts
Specifically designed for your racing transmission needs
Made to promote and inspire your off-road adventures
Perfect for your snowmobile, ATV and motorcycle
The Ultimax tradition of quality and innovation continues. Everything about an Ultimax belt is designed to deliver performance and dependability. With specially formulated rubber compounds and extra strong aramid cord, Ultimax is designed for the rider who refuses to settle for second best! Proudly made in the USA, the Ultimax family includes Ultimax MAX, Ultimax PRO and Ultimax XS snowmobile drive belts; Ultimax HQ, Ultimax UA and Ultimax XP drive belts for ATVs, UTVs and SxSs; and Ultimax MD (Multi-Duty) belts.