Hanchi Auto Parts
4089952 Water Pump Suitable for Cummins PC350-8 ISC 8.3L High Quality
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The OE number 4089952 identifies a water pump fitted to PC350-8, ISC 8.3L, ISL 8.9L and other listed engines. We stock a direct replacement built to the same shaft and pulley heights. One pump weighs 4.00 kg; a full carton holds 4.
Which engines use the 4089952 water pump?
The OE application list reads: PC350-8; ISC 8.3L; ISL 8.9L; Pulley OD 88MM.
When in doubt, compare the old pump pulley height against our spec table below — it settles most fitment questions.
What part numbers interchange with 4089952?
Parts books from different markets list this pump under several numbers. All of them point to the same unit:
- 3964792
- 3973116
- 4309417
- 4376358
- 5291443
- 5346203
- 5579022
- 6389829
What are the specifications of 4089952?
| Parameter | Value |
| OE number | 4089952 |
| Fits brand | Cummins |
| TO Belt pulley height | 91.4 |
| TO Impeller height Ⅱ | 35.65 |
| TO Shaft head height | 100.6 |
| 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 |
| Pulley Diameter | 88 |
| Included Component 1 | O115X3.5 |
| Net weight of one | 4.00 |
| Units per Carton | 4 |
| Net weight | 4.00 kg |
| Packing | 4 pcs/ctn, 18.00 kg gross |
Packing and quality checks
Each pump is packed individually; a master carton holds 4 pieces at 18.00 kg gross.
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 4089952 fit?
4089952 fits PC350-8, ISC 8.3L, ISL 8.9L and other listed engines. It is a Cummins application water pump, and our aftermarket unit replaces it directly.
What other part numbers replace 4089952?
4089952 interchanges with 3964792, 3973116, 4309417, 4376358, 5291443, 5346203 and 2 more. All of these refer to the same water pump assembly.
Is 4089952 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 4089952 water pump weigh?
One pump weighs 4.00 kg net. A full carton of 4 pieces comes to 18.00 kg gross.
How do I confirm 4089952 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.


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