As per the parts list the belt numbers are:
754-0241 35� x 5/8� Secondary Drive
754-0241 38" 3/16� x 5/8� Primary Drive

These are the correct belt if we are talking about the Victa 5-26 (139-501-000 thru 139-508-000,139-511-000 thru 139-514-000) which is fitted with a variable speed pulley assy part number 717-0884.

The variable speed pulley work on belt tension by the two springs with these part numbers:
732-0056 7.58" long
732-0308 .50" OD x 6.37"

Hope that this is of some help. cheers2

Regards,
[Linked Image]

Bruce


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