NEW G-Force Carbon Drive Belts are proving to be a great replacement for Ski-doo 377,391,383,288, 531, 571 drivebelts and fit all applications of Ski-doo Rev, XP, XS, XM sleds. This belt is slightly shorter and slightly wider than the Ski-doo 391,531, & 571. The length is listed at 43-7/8"o.d. x 1.49" wide. It is showing better top speed and good wear characteristics with the carbon cord design.
The 48C4289 is 43.9" o.d. x 1.46" wide and is very close to the same length as the Ski-doo 391,531,& 571 belt.
The 49c4313 can also replaces Ski-doo 288, 383, 288, 391, 377, 531, 571 and is 5/16" longer than the Gates 49c4266. This will sit higher in the secondary starting in a lightly lower ratio than the 4266. This belt is especially good for long center to center clutch alignment and long "z" measurement. The length is 44-1/4" od x 1.49" wide. sold each