Hanchi Auto Parts
1-13650-057-0 Water Pump Suitable for Isuzu 6WA1 6WG1 High Quality
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The OE number 1-13650-057-0 identifies a water pump fitted to 6WA1, 6WG1, 6WG1T and other listed engines. We stock a direct replacement built to the same shaft and pulley heights. One pump weighs 3.30 kg; a full carton holds 4.
Which engines use the 1-13650-057-0 water pump?
The OE application list reads: 6WA1; 6WG1; 6WG1T; 6WF1EFI straight pipe; 360/370; ZX850LC-3; ZX870H-3; Excavator Parts.
If your engine tag matches any entry above, this pump is the right replacement.
What part numbers interchange with 1-13650-057-0?
One pump, many part numbers. The full cross list:
- 1-13650112-6
- 1-87310998-0
- 1-87311001-0
- 8-98146-073-0
- A4109
- A4111
What are the specifications of 1-13650-057-0?
| Parameter | Value |
| OE number | 1-13650-057-0 |
| Fits brand | Isuzu |
| TO Impeller height Ⅱ | 65.8 |
| TO Shaft head height | 44.7 |
| Mounting hole position | Aligned to OE mounting points |
| Threads on the pump body | 5-M10X1.5 |
| TO Gear height | 30.15 |
| Installation of water pipes | Water pipe fitted complete, no deformation |
| 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 |
| Number of Teeth | 19 |
| Included Component 1 | O65X5-2 |
| Net weight | 3.30 kg |
| Packing | 4 pcs/ctn, 15.20 kg gross |
Packing and quality checks
Packing runs 4 pumps per carton, 15.20 kg gross weight, carton size 58 x 44 x 21 cm.
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 1-13650-057-0 fit?
1-13650-057-0 fits 6WA1, 6WG1, 6WG1T and other listed engines. It is a Isuzu application water pump, and our aftermarket unit replaces it directly.
What other part numbers replace 1-13650-057-0?
1-13650-057-0 interchanges with 1-13650112-6, 1-87310998-0, 1-87311001-0, 8-98146-073-0, A4109, A4111. All of these refer to the same water pump assembly.
Is 1-13650-057-0 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 1-13650-057-0 water pump weigh?
One pump weighs 3.30 kg net. A full carton of 4 pieces comes to 15.20 kg gross.
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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