I bought a used BX23MLB and found the fan belt broken when it was delivered. I took the broken belt with me and purchased the Kubota part number match, and went to all the trouble getting it over the driveshaft only to find out it's too small. It will not go over all three pulleys, even with the alternator as loose as it will go.
Replacing fan belt on the BX23MLB
- Thread starter GerryG
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North Idaho Wolfman
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I'll bet you dollars to doughnuts you got a fan belt for a BX23S and not a BX23D.
Wrong #, BX23S Fan Belt 16883-97010
Right #, BX23D Fan Belt 16241-97010
Unless you have the alternator upgrade kit then the belt number changes.
Wrong #, BX23S Fan Belt 16883-97010
Right #, BX23D Fan Belt 16241-97010
Unless you have the alternator upgrade kit then the belt number changes.
Yup-a-ronney
BX23S = 3/8 x 35 1/2
BX23D = 3/8 x 37 1/2
Side note - I've seen up to a 1/2" deviation (35 - 35 1/2) in length in the ones for my BX depending on brand.
BX23S = 3/8 x 35 1/2
BX23D = 3/8 x 37 1/2
Side note - I've seen up to a 1/2" deviation (35 - 35 1/2) in length in the ones for my BX depending on brand.
Thanks for the reply.
I just bought it, and when I got home, I found the belt missing. I looked in the shop manual for the part number to go to the store. Turns out I have a BX23MLB instead of an BX23S, and the motor is a 905 instead of a 902. I don't think the alternator is original.
I took a string and tied it around all pullies and marked it at the midway point of the alternator adjustment arm. I'll go to the store tomorrow.
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I should have looked under the hood when I bought it! The guy at the parts store laid the old belt over the new belt and it looked the same. So, I guess the previous owner did some magic I'm unaware of!
I wrapped a string around the pullies and marked it, to go back to the store.