Hanchi Auto Parts
1K321-73030 Water Pump Suitable for Kubota V2403-Fk High Quality
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1K321-73030 is a Kubota water pump OE number. Our replacement matches the same mounting and cooling specs, fits V2403-Fk engines, and ships with a 1.14 kg net weight (6 pcs per carton). Cross numbers: 05316838, 1K321-3030, 1K321-73031, 22R51-0386, 26276068.
Which engines use the 1K321-73030 water pump?
You will find this pump on V2403-Fk.
Any engine on this list takes our replacement as a straight swap.
What part numbers interchange with 1K321-73030?
Dealers and fleet systems quote this pump under more than one OE number:
- 05316838
- 1K321-3030
- 1K321-73031
- 22R51-0386
- 26276068
What are the specifications of 1K321-73030?
| Parameter | Value |
| OE number | 1K321-73030 |
| Fits brand | Kubota |
| TO Impeller height Ⅱ | 20.7 |
| TO Shaft head height | 85.3 |
| Mounting hole position | Aligned to OE mounting points |
| Flange thread | M6X1 |
| TO Flange height | 80.9 |
| Flange jumping | 0.07 |
| Air tightness testing | No leakage detected under negative pressure of 0.1 MPa |
| Appearance Ⅰ | Neutral finish, no third-party logos |
| Appearance Ⅱ | Clean surface: no dirt, rust or paint peeling |
| Assembly rotation | Turns freely by hand, no sticking or noise |
| Included Component 1 | KU101-WD-1 |
| Net weight of one | 1.14 |
| Net weight | 1.14 kg |
| Packing | 6 pcs/ctn, 8.84 kg gross |
Packing and quality checks
Each pump is packed individually; a master carton holds 6 pieces at 8.84 kg gross.
We leak-test each unit at a negative pressure of 0.1 MPa, then spin it by hand to confirm free rotation.
Frequently asked questions
What vehicles or engines does 1K321-73030 fit?
1K321-73030 fits V2403-Fk engines. It is a Kubota application water pump, and our aftermarket unit replaces it directly.
What other part numbers replace 1K321-73030?
1K321-73030 interchanges with 05316838, 1K321-3030, 1K321-73031, 22R51-0386, 26276068. All of these refer to the same water pump assembly.
Is 1K321-73030 available from stock?
Yes, this number is in regular production. Lead time for carton quantities is usually a few days; ask us for current stock before ordering.
How much does the 1K321-73030 water pump weigh?
One pump weighs 1.14 kg net. A full carton of 6 pieces comes to 8.84 kg gross.
Send us the OE number and your engine model — we confirm fitment before you order.
Send the OE number, your quantity and your destination port — feel free to Contact Us. We reply with fitment confirmation and a quote.
OEM Avalible
Our company understands the challenges of bringing some special parts from paper to reality. Therefore, we offer our services to customers that need help.