Kubota BX23S 400-hour service
Know the work. Match the parts. Take the list with you.
K2892-7121-3 operator manual, original BX23S. North American fluid guidance; normal mineral-diesel schedule. Biodiesel and severe conditions need additional or shorter intervals.
Check the manual and machine versionService checklist
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Your parts & fluids
Some part numbers come from dealer catalogs. Check the source and fitment notes before ordering.
| Item | Quantity | Specification / part number | Purchase |
|---|---|---|---|
| Engine oil filter · original catalogue numberCurrent replacement not confirmed | 1 each | HH150-32430Original BX23S · dealer catalogue; confirm serialDealer lists this original number, but replacement pages form a cycle between HH1J0-32430 and HH1J0-32432. Ask the dealer to resolve the current number. | Confirm the fit using the checkbox above |
| Engine oil | 3.3 L | Original manual: API CF or higher, subject to its listed exclusionsApproximate service capacity, not package count.With filter. SAE 10W-30 or 15W-40 appears across the temperature table; SAE 30 above 25°C, SAE 20 at 0–25°C, SAE 10W below 0°C are also listed. Original North American table lists CF / CF-4 / CG-4 / CH-4 / CI-4 for this engine; explicitly excludes CJ-4. Confirm current approved oil with Kubota. | Match fluid specification before ordering |
| Transmission oil filter | 1 each | HHK20-36990Original BX23S · dealer catalogue; confirm serial | Confirm the fit using the checkbox above |
| Transmission / hydraulic fluid | 11.3 L | Kubota SUPER UDT-2Approximate service capacity, not package count.Shared system. Regular UDT is also permitted in the North American manual; Super UDT-2 is preferred. Filter-only service does not automatically require a full 11.3 L fluid change. | Match fluid specification before ordering |
| Front axle oil | 3.6 L | Kubota SUPER UDT-2 or SAE 80–90 gear oilApproximate service capacity, not package count.Separate axle fill; check level after filling. | Match fluid specification before ordering |
| Inline fuel filter | 2 each | 12581-43012Original BX23S · dealer catalogue; confirm serialTwo filters are listed in the dealer service kit. | Confirm the fit using the checkbox above |
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Fluids for this checklist
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| System | Capacity | Specified fluid | Source |
|---|---|---|---|
| Engine oil | 3.3 L | Original manual: API CF or higher, subject to its listed exclusionsWith filter. SAE 10W-30 or 15W-40 appears across the temperature table; SAE 30 above 25°C, SAE 20 at 0–25°C, SAE 10W below 0°C are also listed. Original North American table lists CF / CF-4 / CG-4 / CH-4 / CI-4 for this engine; explicitly excludes CJ-4. Confirm current approved oil with Kubota. | Source: BX23S / LA340 / BT603 operator manual K2892-7121-3 · pp. 27, 115–116 |
| Transmission / hydraulic fluid | 11.3 L | Kubota SUPER UDT-2Shared system. Regular UDT is also permitted in the North American manual; Super UDT-2 is preferred. Filter-only service does not automatically require a full 11.3 L fluid change. | Source: BX23S / LA340 / BT603 operator manual K2892-7121-3 · pp. 115–116 |
| Front axle oil | 3.6 L | Kubota SUPER UDT-2 or SAE 80–90 gear oilSeparate axle fill; check level after filling. | Source: BX23S / LA340 / BT603 operator manual K2892-7121-3 · p. 115 |
Only fluids required by the selected replacement tasks appear in the basket. Grease, cleaning materials, seals, top-ups and inspection-based replacements may be additional.