Part-number relationships
| Relationship | Reference family | Number |
|---|---|---|
| Primary Equipment Part Number | Radiator cap assembly | RC411-42310 |
| Formatted Alias | Same number without separators | RC41142310 |
Cooling Spare Parts
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Radiator filler-neck and cap assembly identified by Kubota part number RC411-42310. Manufacturer and dealer records place it in the cooling-water system for compact equipment including U30-5, KX91-3 and U35 series machines.
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 | Radiator cap assembly | RC411-42310 |
| Formatted Alias | Same number without separators | RC41142310 |
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
2 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 Published compact equipment: Kubota U30-5 / KX91-3 / U35 series, Fitment limitation: Confirm hose ports, cap pressure and mounting bracket. Confirm the complete part number and machine serial range before ordering.
Formatting aliases for the same number: RC41142310.
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.