Aftermarket starter

The starter on my RTV 850 (2018 model) just crapped out. Finally got it off (really hard to get to) and it is stamped with Mitsuba SM17. It is trashed on the inside. Searched on internet, lots of bad info on compatible starters. Found one on Amazon that looks correct so I ordered it. Might not fit but I refuse to pay $600+ from dealer until I at least try a couple different ones. I'll let you know if it actually fits. BTW, I do not like my Kubota RTV 850. Between the jumpy throttle (absolutely makes it worthless for spraying or any low speed work), seals around propeller shaft falling off, general maintenance issues, it is not a good machine.
The armature magnets on mine are shattered into about 10 pieces. They were all stuck to the windings when I removed it from the case. Mine is stamped Mitsubishi MS-17 on the end cap. I have searched off and on for 3 days. Found a couple on Amazon and on Ebay but the output shaft is too smal in diameter (roughly .375 inches) as compared to the one I removed (roughly .559 inches) There seems to be no options to buy directly from Mitsubishi. Have you discovered any options.
 
Mine is stamped Mitsubishi MS-17 on the end cap. I have searched off and on for 3 days. Found a couple on Amazon and on Ebay but the output shaft is too smal in diameter (roughly .375 inches) as compared to the one I removed (roughly .559 inches) There seems to be no options to buy directly from Mitsubishi. Have you discovered any options.
Try contacting your Kabota dealership. I did for mine and it ended up. It was a recall part on my 2019. They came to my farm serviced it and also repaired a couple of other recall items all for free. Good luck.
 
I got one on ebay for $550. The part number is EG881-63010. I got it from seller "myjohnny0531". However I don't see any available on there right now, but you could check. It was a new one, and works perfectly. That being said, anything over $200 for that piece-of-crap starter is robbery. Mine was totally destroyed inside, and I have a whopping 400 miles on my Kubota. This particular starter doesn't ever disengage from the flywheel (there is no engagement pinion) so it sits there and spins the whole time. Stupid, stupid, design.
 
I was able to find a cheap replacement. Of course, this probably voids warranty if you have one. I used a starter for the GRIZZLY 700 EPS YFM7FG 686cc ENGINE 2009-2021. The starter is CW and has the correct gear. It is shorter and the mount is different. I trimmed off the mounting ears and made a plate that provides thrust on the starter and prevents rotation. I have attached a picture of the plate and starter. This starter cost me $43 and about an hour of time making the plate. I would say you could keep a couple on hand if you were worried about longevity. Start machine with no noticeable difference.
 

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There is a company in the usa that manufactures a more reliable set of contacts for your kubota denso abd dodge starters. All you have to do is replace the worn contactors in the solenoid. It's easy cheap and better than oem. Anyone can do this with just normal hand tools
 
I was able to find a cheap replacement. Of course, this probably voids warranty if you have one. I used a starter for the GRIZZLY 700 EPS YFM7FG 686cc ENGINE 2009-2021. The starter is CW and has the correct gear. It is shorter and the mount is different. I trimmed off the mounting ears and made a plate that provides thrust on the starter and prevents rotation. I have attached a picture of the plate and starter. This starter cost me $43 and about an hour of time making the plate. I would say you could keep a couple on hand if you were worried about longevity. Start machine with no noticeable difference.
This starter was a replacement for the 2019 Kubota XG850 which uses the SM17 starter long version B. As I have found, only available from Kubota for in the vicinity of $800. This is a low cost repair I completed on a family machine.
 
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