Hanchi Auto Parts
3966841 Water Pump Suitable for Cummins 6CT 6C9-11 High Quality
Couldn't load pickup availability
If your parts book shows 3966841, you need a water pump for 6CT, 6C9-11, 6CTA 8.3 and other listed engines. Ours is a matching replacement — same mounting holes, same belt pulley height, pressure-tested before packing. Related OE numbers include 3357458, 4934058, 6741-61-1530, 6742-01-5038.
Which engines use the 3966841 water pump?
Fitment covers 6CT; 6C9-11; 6CTA 8.3; 6D114; Komatsu360-7.
Any engine on this list takes our replacement as a straight swap.
What are the specifications of 3966841?
| Parameter | Value |
| OE number | 3966841 |
| Fits brand | Cummins |
| TO Belt pulley height | 90.3 |
| TO Impeller height Ⅱ | 34.5 |
| TO Shaft head height | 110.3 |
| Pulley Jumping | 0 |
| Mounting hole position | Aligned to OE mounting points |
| 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 | O115X3.5 |
| Net weight of one | 3.34 |
| Units per Carton | 4 |
| Net weight | 3.34 kg |
| Packing | 4 pcs/ctn, 15.36 kg gross |
What part numbers interchange with 3966841?
One pump, many part numbers. The full cross list:
- 3357458
- 4934058
- 6741-61-1530
- 6742-01-5038
Packing and quality checks
Each pump is packed individually; a master carton holds 4 pieces at 15.36 kg gross.
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 3966841 fit?
3966841 fits 6CT, 6C9-11, 6CTA 8.3 and other listed engines. It is a Cummins application water pump, and our aftermarket unit replaces it directly.
What other part numbers replace 3966841?
3966841 interchanges with 3357458, 4934058, 6741-61-1530, 6742-01-5038. All of these refer to the same water pump assembly.
Is 3966841 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 3966841 water pump weigh?
One pump weighs 3.34 kg net. A full carton of 4 pieces comes to 15.36 kg gross.
How do I confirm 3966841 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.
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.