Part-number relationships
| Relationship | Reference family | Number |
|---|---|---|
| Primary Equipment Part Number | Molded water-return hose | 1A021-73340 |
| Formatted Alias | Same number without separator | 1A02173340 |
Excavator Engine Parts
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Molded cooling-system water-return hose identified by 1A021-73340. Exact parts records support Kubota V2203M and V2403 engines and equipment including KX121-3, KX161-3 and KX91-3 excavators. Confirm the complete part number, hose shape, connection diameters and machine serial range before ordering.
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Equipment Part Number | Molded water-return hose | 1A021-73340 |
| Formatted Alias | Same number without separator | 1A02173340 |
Product fitment guide
Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.
Part identification
Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.
Product summary
Before ordering
Machine fitment
3 model references
Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.
Quick fitment answers
Recorded compatible model references include Engine family: Kubota V2203M / V2403, Excavator examples: Kubota KX91-3 / KX121-3 / KX161-3, Fitment limitation: Confirm part number, hose shape, connection diameters and serial range. Confirm the complete part number and machine serial range before ordering.
Formatting aliases for the same number: 1A02173340.
Match the complete part number on the original component. Compare connectors, mounting points and visible dimensions with the product photos. Confirm the exact machine or engine model and serial range before ordering. Send clear photos of the original unit and connector layout when requesting a quote.
Continue comparing verified references from the same system.