Hanchi Auto Parts
129001-42005 Water Pump Suitable for Yanmar 3D84-1 PC30 High Quality
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129001-42005 is how Yanmar lists this water pump. It serves 3D84-1, PC30, PC20-5 and other listed engines. Our version copies the OE mounting pattern and impeller geometry, so it drops in without modification. Cross-reference: 129327-42100, YM129327-42100.
Which engines use the 129001-42005 water pump?
You will find this pump on 3D84-1; PC30; PC20-5.
When in doubt, compare the old pump pulley height against our spec table below — it settles most fitment questions.
What are the specifications of 129001-42005?
| Parameter | Value |
| OE number | 129001-42005 |
| Fits brand | Yanmar |
| TO Shaft head height | 123.7 |
| Mounting hole position | Aligned to OE mounting points |
| Flange thread | 4-M6X1 |
| TO Flange height | 106.3 |
| Flange jumping | 0.07 |
| TO Impeller height Ⅰ | 0.8 |
| 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 | YA101-WD-1 |
| Net weight of one | 1.00 |
| Net weight | 1.00 kg |
| Packing | 8 pcs/ctn, 10.00 kg gross |
What part numbers interchange with 129001-42005?
One pump, many part numbers. The full cross list:
- 129327-42100
- YM129327-42100
Packing and quality checks
Packing runs 8 pumps per carton, 10.00 kg gross weight, carton size 38.5 x 32 x 31.5 cm.
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 129001-42005 fit?
129001-42005 fits 3D84-1, PC30, PC20-5 and other listed engines. It is a Yanmar application water pump, and our aftermarket unit replaces it directly.
What other part numbers replace 129001-42005?
129001-42005 interchanges with 129327-42100, YM129327-42100. All of these refer to the same water pump assembly.
Is 129001-42005 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 129001-42005 water pump weigh?
One pump weighs 1.00 kg net. A full carton of 8 pieces comes to 10.00 kg gross.
Bulk pricing starts at one carton. Ask for a quote with your target quantity.
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.