ISUZU 4HK1 High Pressure Fuel Injection Pump (24V)
High-quality Common Rail supply pump (High Pressure Pump), dedicated to ISUZU 4HK1 industrial and truck engines. Marked with part number 8973060449. It is a fuel system component responsible for generating high fuel pressure and delivering it to the Common Rail. This version is adapted for 24V electrical systems, which is standard in construction machinery (excavators) and heavier utility vehicles.
Product Features:
- Common Rail System: Pump characterized by high pumping precision and pressure stability.
- 24V Coil: The flow control valve (SCV / PCV) mounted on the pump is calibrated for 24V operation.
- Durability: Body and pumping elements made of hardened alloys, resistant to thermal and mechanical loads.
Technical Specifications:
| Isuzu Part Number |
8973060449 (8-97306-044-9) |
|---|
| Engine |
4HK1, 4HK1-T (Turbo) |
|---|
| Control Voltage |
24V |
|---|
| Injection System |
Common Rail |
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Application (Machines with 4HK1 24V engine):
| Hitachi Excavators |
ZX200-3, ZX210-3, ZX240-3, ZX250-3, ZX270-3, ZX280-3 |
|---|
| JCB Excavators |
JS200, JS210, JS220, JS235, JS240, JS260 (models with Isuzu engine) |
|---|
| Other |
Case (CX210B, CX240B), Sumitomo (SH200-5, SH240-5), Link-Belt |
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Technical Tip: The most common cause of high-pressure pump failure is contaminated fuel or internal metal flaking (swarf). Before installing a new pump, it is absolutely necessary to clean the entire fuel system (including the tank) and replace fuel filters. We also recommend verifying the SCV (Suction Control Valve) – uneven engine operation ("hunting") often results from damage to this valve, not the entire pump.
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