Does not fit all applications - Verify part number by referring to model specificationsHigh Temperature Bearing UpgradeHigh Torque Cool Coil UpgradeIntegrated Water Tight Wire HarnessReplaceable Pulley BearingSuper Smooth "Fits Xtreme Precision" Machined PulleyTo prevent premature clutch failure, follow the instruction sheet included with the clutchBelt WidthDouble AID1 1/8"Pulley Diameter4 1/8"Rotation DirectionCounter Clockwise