2004 Ski-Doo REV Series Factory Service Manual, Page 412Get this manual
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Section 11 TECHNICAL DATA Subsection 03 (VEHICLES)
4740 20.0 0.5 (.787 .02) 37.0 0.5 (1.457 0.2) 0.82 0.75 (.0032 .0030) 417 300 197
Drive belt part number (PN) Drive belt width