Hanchi Auto Parts
121023-42100 Water Pump Suitable for Yanmar 3TNA72 3T72HA-F High Quality
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121023-42100 is how Yanmar lists this water pump. It serves 3TNA72, 3T72HA-F, 3T84HA-F and other listed engines. Our version copies the OE mounting pattern and impeller geometry, so it drops in without modification. Cross-reference: 115436, 119498, 130508.
Which engines use the 121023-42100 water pump?
You will find this pump on 3TNA72; 3T72HA-F; 3T84HA-F; Thermo King TK2.35.
When in doubt, compare the old pump pulley height against our spec table below — it settles most fitment questions.
What are the specifications of 121023-42100?
| Parameter | Value |
| OE number | 121023-42100 |
| Fits brand | Yanmar |
| TO Shaft head height | 103.5 |
| Mounting hole position | Aligned to OE mounting points |
| Flange thread | 4-M6X1 |
| TO Flange height | 98.1 |
| Flange jumping | 0.07 |
| TO Impeller height Ⅰ | 1.75 |
| 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 | YA108-WD-1 |
| Net weight of one | 0.62 |
| Net weight | 0.62 kg |
| Packing | 12 pcs/ctn, 9.50 kg gross |
What part numbers interchange with 121023-42100?
Dealers and fleet systems quote this pump under more than one OE number:
- 115436
- 119498
- 130508
Packing and quality checks
Logistics data: 12 pcs/ctn, 9.50 kg gross, 43.5 x 26.8 x 30.3 cm.
Every pump leaves the line after a leak test at a negative pressure of 0.1 MPa. No leaks, no exceptions.
Frequently asked questions
What vehicles or engines does 121023-42100 fit?
121023-42100 fits 3TNA72, 3T72HA-F, 3T84HA-F and other listed engines. It is a Yanmar application water pump, and our aftermarket unit replaces it directly.
What other part numbers replace 121023-42100?
121023-42100 interchanges with 115436, 119498, 130508. All of these refer to the same water pump assembly.
Is 121023-42100 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 121023-42100 water pump weigh?
One pump weighs 0.62 kg net. A full carton of 12 pieces comes to 9.50 kg gross.
Message us with the OE number off your old pump. We reply with fitment confirmation and a price the same day.
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.