Hanchi Auto Parts
GWIS-56A Water Pump Suitable for Isuzu 4HK1 TRUCK High Quality
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GWIS-56A belongs to the Isuzu cooling system parts family. The pump sits on 4HK1 TRUCK engines. Our aftermarket equivalent follows the OE dimensions and passes air-tightness testing under a negative pressure of 0.1 MPa. It also replaces 5876100891, 8-97363478-0.
Which engines use the GWIS-56A water pump?
This pump was designed for 4HK1 TRUCK.
If your engine tag matches any entry above, this pump is the right replacement.
What part numbers interchange with GWIS-56A?
Dealers and fleet systems quote this pump under more than one OE number:
- 5876100891
- 8-97363478-0
What are the specifications of GWIS-56A?
| Parameter | Value |
| OE number | GWIS-56A |
| Fits brand | Isuzu |
| TO Impeller height Ⅱ | 7.4 |
| TO Shaft head height | 100.85 |
| Mounting hole position | Aligned to OE mounting points |
| Flange thread | 4-M8X1.25 |
| TO Flange height | 91.8 |
| 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 | IS104-WD-1 |
| Net weight of one | 1.90 |
| Net weight | 1.90 kg |
| Packing | 4 pcs/ctn, 10.00 kg gross |
Packing and quality checks
Packing runs 4 pumps per carton, 10.00 kg gross weight, carton size 46 x 40 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 GWIS-56A fit?
GWIS-56A fits 4HK1 TRUCK engines. It is a Isuzu application water pump, and our aftermarket unit replaces it directly.
What other part numbers replace GWIS-56A?
GWIS-56A interchanges with 5876100891, 8-97363478-0. All of these refer to the same water pump assembly.
Is GWIS-56A 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 GWIS-56A water pump weigh?
One pump weighs 1.90 kg net. A full carton of 4 pieces comes to 10.00 kg gross.
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.
OEM Avalible
Our company understands the challenges of bringing some special parts from paper to reality. Therefore, we offer our services to customers that need help.