Interesting.
My tractor, built in 1994, had a replacement short block about 1 year before I got it. Could it have a different pan?
When I look up the oil pan on Kubota
Canada's parts catalog, I get part #15371-01614. All 5 variants (new vs old, 2wd vs 4wd) of the B7100 listed on the Canadian site show that part number. Is it because Kubota automatically updated superseded part numbers in the listings?
For some reason, I can't find a photo of that part from an online Kubota retailer. The only photographs I can find are
in this eBay listing,
this Grasshopper parts listing, and this
Sailnet forum posting which are all clearly similar steel stampings, but not necessarily authoritative, and none of which mention the B7100.
Google also told me that my part number supersedes part #15371-01610, but refuses to cough up any photos whatsoever of that fellow.
So I am left wondering: Is the steel pan a Canadian thing? Is it an age thing? Is your engine older or a replacement from another application (eg: reefer)?