replace lost Kubota key 7
https://kubotakeyduplicationscope.yousher.com/why-a-specialist-kubota-key-duplication-service-matters-for-your-mini-digger
If you've misplaced or snapped off your Kubota tractor key, you can often get a replacement from a local dealer by providing the serial number. For older models, note that some keys were shared across multiple machines, so a locksmith may be able to cut a new one from the lock cylinder itself. Either way, you'll be back in the driver's seat without much hassle.