Kubota GL 23

100 td

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Equipment
B21TLB (B21, TL421 & BT751) Toyota SDK4 T116 Bobcat
Aug 29, 2015
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ɹǝpunuʍop
If you don't have an operators manual, I think you'll have trouble finding info on this tractor. That said, oil filter is probably HH164-32430, take the old ones in and match them up, pull the air filter and see if it has a part number on it, same for oil filter.
As you can see your engine is a D1463, but oil filter and air filter may be different to other tractors due to space requirements etc. Don't forget to undo/redo both drain plugs on the engine sump.
You may be able to cross reference a filter from other tractors
http://traktor60.hu/japanese-tractor-parts/japanese-tractors-filters/iseki-tractor-air-filter-2
http://traktor60.hu/japanese-tractor-parts/japanese-tractors-filters/kubota-tractor-oilfilter-3-type
https://www.tracpartz.com/oil-filter-kubota.html scroll down
https://www.ebay.com.au/itm/Oil-Filter-replacement-Kubota-HH164-32430-70000-74035-/170646572408