Hanchi Auto Parts
4N0660 Water Pump Suitable for Caterpillar 3204 High Quality
Couldn't load pickup availability
4N0660 belongs to the Caterpillar cooling system parts family. The pump sits on 3204 engines. Our aftermarket equivalent follows the OE dimensions and passes air-tightness testing under a negative pressure of 0.1 MPa. It also replaces 1W-2929, 1W5644, 1W6446, 2W-1223.
Which engines use the 4N0660 water pump?
Fitment covers 3204.
If your engine tag matches any entry above, this pump is the right replacement.
What are the specifications of 4N0660?
| Parameter | Value |
| OE number | 4N0660 |
| Fits brand | Caterpillar |
| TO Impeller height Ⅱ | 47.4 |
| TO Shaft head height | 87.1 |
| Mounting hole position | Aligned to OE mounting points |
| Flange thread | M8X1.25 |
| TO Flange height | 64.5 |
| 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 | CA122-WD-1 |
| Net weight of one | 4.52 |
| Net weight | 4.52 kg |
| Packing | 4 pcs/ctn, 20.10 kg gross |
What part numbers interchange with 4N0660?
Dealers and fleet systems quote this pump under more than one OE number:
- 1W-2929
- 1W5644
- 1W6446
- 2W-1223
Packing and quality checks
Packing runs 4 pumps per carton, 20.10 kg gross weight, carton size 38.5 x 32 x 16.5 cm.
We leak-test each unit at a negative pressure of 0.1 MPa, then spin it by hand to confirm free rotation.
Frequently asked questions
What vehicles or engines does 4N0660 fit?
4N0660 fits 3204 engines. It is a Caterpillar application water pump, and our aftermarket unit replaces it directly.
What other part numbers replace 4N0660?
4N0660 interchanges with 1W-2929, 1W5644, 1W6446, 2W-1223. All of these refer to the same water pump assembly.
Is 4N0660 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 4N0660 water pump weigh?
One pump weighs 4.52 kg net. A full carton of 4 pieces comes to 20.10 kg gross.
How do I confirm 4N0660 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.
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
Our company understands the challenges of bringing some special parts from paper to reality. Therefore, we offer our services to customers that need help.