belt size for ltv/11 mode#917252641

craftsman riding mower

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blueowl072002, the primary drive belt is part number 4866J and it is a 1/2" X 78" belt. The secondary drive belt is part number 6753J which is a 5/8" X 60" belt

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Realize this is a few years old but we are talking about a very old lawn tractor anyway.

I must disagree strongly with blueowl072002's answer. I own the machine in question and have been restoring it. Actually purchased belts based on his info, both are way too long, not even close. The actual belts that fit are:

Primary: 4866J (sub 583768401 or 106729X): 5/8” x 47.5"

Secondary: 6753J (sub 583773201 or 100615N): 1/2" x 56.5"

These are exact fits by personal experience.


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I realize this is a very old post but we are talking about a very old Lawn Tractor. I own and am restoring a Sears Craftsman LTV/11 Model# 917.252641 riding lawn mower(Lawn Tractor). The correct answer, based on replacement experience, to the question of Drive belt size is:

Primary: Sears part #4866J (Sub: 583768401 or 106729X) It is a 5/8” x 47.5" v-belt

Secondary: Sears part #6753J (Sub: 583773201 or 100615N) It is a 1/2" x 56.5" v-belt

If a search is done using the Sears part #'s many of the results will be similar 60" and 78" belts mentioned in another answer but a search using the substitution numbers gives more accurate results.

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blueowl072002 will be eternally grateful.
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