Engine Replacement

Harbison

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Aug 15, 2018
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My Cub Cadet ZTR has an FH661V-BS05-R engine. Need to replace the engine (blew a hole in the crankcase). Will an FH531V-AS05 engine fit? Or are there other replacement engines that will work?

Thanks,
Richard
 

c5vettster

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Nov 9, 2014
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7
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My Cub Cadet ZTR has an FH661V-BS05-R engine. Need to replace the engine (blew a hole in the crankcase). Will an FH531V-AS05 engine fit? Or are there other replacement engines that will work?

Thanks,
Richard

You just need to measure the diameter and the length of your original shaft and make sure that the replacement engine has the same measurements. It is difficult to look up the shaft size based on the model number, so direct measurements will be more efficient. The FH531 is also going to be a few HP lower that your original engine. It is not recommended putting lower power motor given than the equipment maker has already put the lowest power unit they thought the equipment can tolerate.
 
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