Ultimax Pro Drive Belt 131-4400U4

• Ultimax 3 has evolved into Ultimax Pro
• Belt features a thicker cross section so more surface area contacts the clutch; this means less slippage over a broader speed range for quicker acceleration
• New cog design dissipates heat and aids flexibility
• Cooler-running belts mean better performance and longer-lasting belts
• Run cool, run long, run fast with Ultimax Pro
• Top-cog design

Ski-Doo -- Skandic 377 -- (1985, 1983, 1986, 1984, 1987, 1985, 1987, 1983, 1986, 1984); Ski-Doo -- Alpine 640 -- (1979, 1977, 1985, 1976, 1986, 1987, 1981, 1974, 1978, 1980, 1982, 1975, 1983, 1976, 1986, 1987, 1981, 1977, 1985, 1974, 1978, 1980, 1982, 1979, 1975, 1983); Ski-Doo -- Alpine 640ER -- (1974, 1976, 1982, 1975, 1977, 1978, 1981, 1979, 1980); Ski-Doo -- Skandic 377R -- (1987, 1985, 1986, 1983, 1984); Ski-Doo -- Safari Cheyenne -- (1989)