Hanchi Auto Parts
A4111 Water Pump Suitable for Isuzu 6WA1 6WG1 High Quality
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A4111 belongs to the Isuzu cooling system parts family. The pump sits on 6WA1, 6WG1, 6WG1T 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 1-13650-057-0, 1-13650112-6, 1-87310998-0, 8-98146-073-0, A4109.
Which engines use the A4111 water pump?
Fitment covers 6WA1; 6WG1; 6WG1T; 6WF1EFI straight pipe; 360/370; ZX850LC-3; ZX870H-3; Excavator Parts.
When in doubt, compare the old pump pulley height against our spec table below — it settles most fitment questions.
What are the specifications of A4111?
| Parameter | Value |
| OE number | A4111 |
| 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 |
What part numbers interchange with A4111?
Dealers and fleet systems quote this pump under more than one OE number:
- 1-13650-057-0
- 1-13650112-6
- 1-87310998-0
- 8-98146-073-0
- A4109
Packing and quality checks
For shipping estimates, count on 4 pumps per carton (15.20 kg, 58 x 44 x 21 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 A4111 fit?
A4111 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 A4111?
A4111 interchanges with 1-13650-057-0, 1-13650112-6, 1-87310998-0, 8-98146-073-0, A4109. All of these refer to the same water pump assembly.
Is A4111 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 A4111 water pump weigh?
One pump weighs 3.30 kg net. A full carton of 4 pieces comes to 15.20 kg gross.
Message us with the OE number off your old pump. We reply with fitment confirmation and a price the same day.
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
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