Hanchi Auto Parts
8-94310-251-0 Water Pump Suitable for Isuzu 4JB1 M6 4JR1 High Quality
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8-94310-251-0 belongs to the Isuzu cooling system parts family. The pump sits on 4JB1 M6, 4JR1, 2500cc 4JR1 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 8-94140-341-0, 8-94140-341-2, 8-94376-844-0, 8-94379-422-0, 8-94379-472-0 and 7 more.
Which engines use the 8-94310-251-0 water pump?
Fitment covers 4JB1 M6; 4JR1; 2500cc 4JR1; 2800cc; 4JA1; GWIS-25A; SK60.
When in doubt, compare the old pump pulley height against our spec table below — it settles most fitment questions.
What part numbers interchange with 8-94310-251-0?
One pump, many part numbers. The full cross list:
- 8-94140-341-0
- 8-94140-341-2
- 8-94376-844-0
- 8-94379-422-0
- 8-94379-472-0
- 8-94419-461-2
- 8-94461-173-0
- 8-97018-560-0
- 8-97062-796-0
- 8-97123-330-0
- 8-97376-851-0
- 8971233302
What are the specifications of 8-94310-251-0?
| Parameter | Value |
| OE number | 8-94310-251-0 |
| Fits brand | Isuzu |
| TO Impeller height Ⅱ | 16 |
| TO Shaft head height | 94 |
| Mounting hole position | Aligned to OE mounting points |
| Flange thread | 8-M6X1 |
| TO Flange height | 78.9 |
| 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 | OIS102 |
| Net weight of one | 1.32 |
| Net weight | 1.32 kg |
| Packing | 8 pcs/ctn, 12.56 kg gross |
Packing and quality checks
For shipping estimates, count on 8 pumps per carton (12.56 kg, 38.5 x 32 x 31.5 cm).
Air-tightness is checked pump by pump under a negative pressure of 0.1 MPa before packing.
Frequently asked questions
What vehicles or engines does 8-94310-251-0 fit?
8-94310-251-0 fits 4JB1 M6, 4JR1, 2500cc 4JR1 and other listed engines. It is a Isuzu application water pump, and our aftermarket unit replaces it directly.
What other part numbers replace 8-94310-251-0?
8-94310-251-0 interchanges with 8-94140-341-0, 8-94140-341-2, 8-94376-844-0, 8-94379-422-0, 8-94379-472-0, 8-94419-461-2 and 6 more. All of these refer to the same water pump assembly.
Is 8-94310-251-0 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 8-94310-251-0 water pump weigh?
One pump weighs 1.32 kg net. A full carton of 8 pieces comes to 12.56 kg gross.
How do I confirm 8-94310-251-0 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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