Hanchi Auto Parts
YM129327-42100 Water Pump Suitable for Yanmar 3D84-1 PC30 High Quality
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YM129327-42100 belongs to the Yanmar cooling system parts family. The pump sits on 3D84-1, PC30, PC20-5 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 129001-42005, 129327-42100.
Which engines use the YM129327-42100 water pump?
The OE application list reads: 3D84-1; PC30; PC20-5.
Any engine on this list takes our replacement as a straight swap.
What are the specifications of YM129327-42100?
| Parameter | Value |
| OE number | YM129327-42100 |
| 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 YM129327-42100?
One pump, many part numbers. The full cross list:
- 129001-42005
- 129327-42100
Packing and quality checks
For shipping estimates, count on 8 pumps per carton (10.00 kg, 38.5 x 32 x 31.5 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 YM129327-42100 fit?
YM129327-42100 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 YM129327-42100?
YM129327-42100 interchanges with 129001-42005, 129327-42100. All of these refer to the same water pump assembly.
Is YM129327-42100 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 YM129327-42100 water pump weigh?
One pump weighs 1.00 kg net. A full carton of 8 pieces comes to 10.00 kg gross.
How do I confirm YM129327-42100 is the pump I need?
Check the OE number stamped on your old pump or in the parts book, then compare engine model and pulley height with the spec table on this page. If anything is unclear, send us a photo of the old unit.
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.
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