Hanchi Auto Parts
5346203 Water Pump Suitable for Cummins PC350-8 ISC 8.3L High Quality
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If your parts book shows 5346203, you need a water pump for PC350-8, ISC 8.3L, ISL 8.9L and other listed engines. Ours is a matching replacement — same mounting holes, same belt pulley height, pressure-tested before packing. Related OE numbers include 3964792, 3973116, 4089952, 4309417, 4376358 and 3 more.
Which engines use the 5346203 water pump?
This pump was designed for 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 are the specifications of 5346203?
| Parameter | Value |
| OE number | 5346203 |
| 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 |
What part numbers interchange with 5346203?
Dealers and fleet systems quote this pump under more than one OE number:
- 3964792
- 3973116
- 4089952
- 4309417
- 4376358
- 5291443
- 5579022
- 6389829
Packing and quality checks
Packing runs 4 pumps per carton, 18.00 kg gross weight, carton size 41 x 36 x 19.5 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 5346203 fit?
5346203 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 5346203?
5346203 interchanges with 3964792, 3973116, 4089952, 4309417, 4376358, 5291443 and 2 more. All of these refer to the same water pump assembly.
Is 5346203 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 5346203 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 5346203 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.
Not sure this is your pump? Send a photo of the old unit and the engine tag; we will match it.
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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