Hanchi Auto Parts
3800322 Water Pump Suitable for Komatsu 12V140 QST30 High Quality
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The OE number 3800322 identifies a water pump fitted to 12V140 and QST30 engines. We stock a direct replacement built to the same shaft and pulley heights. One pump weighs 31.40 kg; a full carton holds 1.
Which engines use the 3800322 water pump?
The OE application list reads: 12V140; QST30.
When in doubt, compare the old pump pulley height against our spec table below — it settles most fitment questions.
What part numbers interchange with 3800322?
Depending on the catalog you use, the same pump shows up as:
- 4090031PX
- 4096427
- 6219-61-1150
What are the specifications of 3800322?
| Parameter | Value |
| OE number | 3800322 |
| Fits brand | Komatsu;Cummins |
| TO Shaft head height | 76.5 |
| Mounting hole position | Aligned to OE mounting points |
| TO Gear height | 74.5 |
| TO Impeller height Ⅰ | 11.2 |
| 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 |
| Number of Teeth | 25 |
| Included Component 1 | O98X3.5 |
| Net weight of one | 31.40 |
| Units per Carton | 1 |
| Net weight | 31.40 kg |
| Packing | 1 pcs/ctn, 34.00 kg gross |
Packing and quality checks
Each pump is packed individually; a master carton holds 1 pieces at 34.00 kg gross.
Before boxing, each pump passes a negative-pressure leak check and a hand-rotation check for smooth, noise-free bearing movement.
Frequently asked questions
What vehicles or engines does 3800322 fit?
3800322 fits 12V140 and QST30 engines. It is a Komatsu;Cummins application water pump, and our aftermarket unit replaces it directly.
What other part numbers replace 3800322?
3800322 interchanges with 4090031PX, 4096427, 6219-61-1150. All of these refer to the same water pump assembly.
Is 3800322 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 3800322 water pump weigh?
One pump weighs 31.40 kg net. A full carton of 1 pieces comes to 34.00 kg gross.
Stock moves fast on this number. Send your inquiry with quantity and destination port for a firm quote.
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
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