Hanchi Auto Parts
E5800-73037 Water Pump Suitable for Kubota 2403 for Kioti High Quality
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E5800-73037 belongs to the Kubota cooling system parts family. The pump sits on 2403, for Kioti, DK35 and other listed engines. Our aftermarket equivalent follows the OE dimensions and passes air-tightness testing under a negative pressure of 0.1 MPa. It also replaces 1A021-73030, E5800-73035.
Which engines use the E5800-73037 water pump?
This pump was designed for 2403; for Kioti; DK35; DK40; DK45 DK50 DK55 DS4110.
When in doubt, compare the old pump pulley height against our spec table below — it settles most fitment questions.
What are the specifications of E5800-73037?
| Parameter | Value |
| OE number | E5800-73037 |
| Fits brand | Kubota |
| TO Impeller height Ⅱ | 18.6 |
| TO Shaft head height | 86 |
| Mounting hole position | Aligned to OE mounting points |
| Flange thread | M6X1 |
| TO Flange height | 85 |
| 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 | KU113-WD-1 |
| Net weight of one | 1.34 |
| Net weight | 1.34 kg |
| Packing | 6 pcs/ctn, 10.04 kg gross |
What part numbers interchange with E5800-73037?
Parts books from different markets list this pump under several numbers. All of them point to the same unit:
- 1A021-73030
- E5800-73035
Packing and quality checks
Each pump is packed individually; a master carton holds 6 pieces at 10.04 kg gross.
Air-tightness is checked pump by pump under a negative pressure of 0.1 MPa before packing.
Frequently asked questions
What vehicles or engines does E5800-73037 fit?
E5800-73037 fits 2403, for Kioti, DK35 and other listed engines. It is a Kubota application water pump, and our aftermarket unit replaces it directly.
What other part numbers replace E5800-73037?
E5800-73037 interchanges with 1A021-73030, E5800-73035. All of these refer to the same water pump assembly.
Is E5800-73037 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 E5800-73037 water pump weigh?
One pump weighs 1.34 kg net. A full carton of 6 pieces comes to 10.04 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.