Kubota BX23S

Browse aftermarket replacement parts for the Kubota BX23S sub-compact tractor. Kubota BX Series 23 HP sub-compact tractor with factory loader and backhoe, the workhorse small property tractor in the current Kubota lineup.

Use filters or search by OEM part number to find the right part. Compatibility details are listed on each product page.

Parts Compatible with the Kubota BX23S Sub-Compact Tractor

The BX23S is Kubota's compact tractor, loader, and backhoe combination, the popular small-property workhorse that comes from the factory with the LA340 loader and BT603 backhoe pre-mounted. It uses the Kubota D902 era 3-cylinder diesel engine producing 23 horsepower, paired with a hydrostatic transmission and 4WD. The BX23S-1 designation indicates the gen-1 refresh of the same physical machine, with updated hydraulic plumbing and minor cab cosmetic changes. Customers commonly find BX23S units in residential, small-acreage, and light-commercial property maintenance applications across North America.

The BX23S shares many service parts with the BX25 (the previous-generation 23 HP loader/backhoe combination already established as a parts page) and with the BX22D and BX24 era machines because Kubota engineered the BX Series on a shared parts platform with the D902 / D905 engine family across multiple generations.

Common Replacement Parts for the Kubota BX23S

Fuel system service uses In-Line Fuel Filter 1258143011 and Fuel Filter 12581-43012 as the primary fuel filters across the D902 era engine. Engine Oil Filter HH1J0-32430 and the alternate HH150-32430 reference cover the spin-on lube position. Cooling system service uses Thermostat 15321-73010 as the most commonly ordered service item.

Internal engine service uses Glow Plug 1G679-65512 (cold start service) and Valve Cover Gasket 1G962-14520 for top-end work. Small assembly hardware including Washer 04512-50080 covers routine bolt-and-fastener service. Many BX23S service parts cross to the BX25 (the established BX page with the same era engine) and to other BX Series sub-compact tractors in the Kubota lineup.