Heavy-duty Heat-resistant Rubber Water Hose for ISUZU 700P 4HK1 5.2L Diesel Engine — OEM Quality
| Operating Temperature: | -40°C To +120°C | Length: | Standard (L=19) |
| Material: | Heavy-duty Heat-resistant Rubber | Weight: | 0.08kg |
| Operating Pressure: | 1.0–1.5bar | Engine Compatibility: | 4HK1 5.2L Diesel Engine |
| High Light: | Heavy-duty heat-resistant rubber Water Hose,4HK1 5.2L Diesel Engine Water Hose,OEM Quality Engine Coolant Inlet Hose |
||
The Water Hose (Engine Coolant Inlet Hose) with OEM numbers 8973792281 / 8-97379228-1 is a verified direct-fit replacement for ISUZU 700P / NPR / NQR / NRR series trucks equipped with the 4HK1 5.2L diesel engine. This water hose is a critical component of the engine coolant circulation system, responsible for delivering coolant from the cylinder block to the cylinder head (or from the thermostat to the cylinder block), ensuring the engine operates within optimal temperature range.
The water hose is installed between the engine cylinder block and cylinder head (or between the thermostat and cylinder block), serving as a vital passage in the engine coolant circulation path. Driven by the water pump, coolant flows through this hose from the block to the head (or from the thermostat to the block), absorbing heat generated by combustion before flowing to the radiator for cooling, completing the full cooling cycle. The hose is constructed from high-temperature, oil-resistant, pressure-resistant rubber material, ensuring long-term stable operation under high-temperature, high-pressure engine conditions.
Replace immediately if any of these symptoms occur:
- Coolant Leakage — Green/pink coolant seepage visible at hose connections or body; coolant stains on the ground
- Engine Overheating — Temperature gauge reading high; engine overheat warning light illuminates
- Rubber Aging/Cracking — Visual inspection reveals cracks, bulges, or hardening on hose surface
- Abnormal Coolant Consumption — Coolant level drops faster than normal; frequent top-ups required
- Steam from Engine Bay — White steam rising from engine bay while driving
- Poor Cabin Heating — Heater performance degraded
- Installation Success Rate: 98.5% direct fitment rate — confirmed across 78 repair orders
- Weight: 0.08kg — lightweight design for easy installation
- Material: Heavy-duty heat-resistant rubber
- Operating Temperature Range: -40°C to +120°C
- Operating Pressure: Withstands normal cooling system pressure (approx. 1.0–1.5bar)
- HS Code: 400931000 — standard customs classification
- 100% Factory Tested — Every hose undergoes comprehensive inspection
- Direct OEM Interchange — Direct replacement for ISUZU original parts
| Part Number: | 8973792281 8-97379228-1 |
| Car Model: | 700P |
| Engine Model: | 4HK1 |
| Condition: | 100% Brand New |
| Origin: | China Mainland |
| Main Market: | Middle East, Asia, Africa, South America, North America & Europe |
| Brand | Model | Engine | Years |
|---|---|---|---|
| ISUZU | 700P | 4HK1 5.2L | — |
| ISUZU | NPR | 4HK1 5.2L | 2007–2010 |
| ISUZU | NPR-HD | 4HK1 5.2L | 2007–2010 |
| ISUZU | NQR | 4HK1 5.2L | 2007–2010 |
| ISUZU | NRR | 4HK1 5.2L | 2007–2010 |
| Engine Model | Displacement | Description |
|---|---|---|
| 4HK1 | 5.2L | 4-cylinder turbo diesel engine |
| 4HK1-TCS | 5.2L | 4-cylinder turbo diesel engine |
- The water hose is a critical component of the engine cooling system — aging and cracking cause coolant leakage and engine overheating, potentially leading to engine seizure or cylinder head warpage
- Recommended to inspect other cooling system hoses when replacing — replace all aging hoses simultaneously
- Ensure hose connections are clean and free of debris during installation; use OEM-spec hose clamps
- Refill coolant and bleed air from the system after installation to ensure proper cooling system operation
- For 100% accurate fitment, please provide VIN (Chassis Number) or engine model
| QC Item | Verification Method | Standard |
|---|---|---|
| Rubber Material Composition | Spectrographic/IR analysis | Meets EPDM/rubber material standard |
| Dimensional Accuracy | Precision gauge | Meets OEM installation dimension standards |
| Hardness Test | Hardness tester | Meets rubber hardness standard |
| Temperature Test | Thermal chamber | -40°C to +120°C — no deformation, no cracking |
| Pressure Test | Pressure test bench | Withstands 1.5bar pressure — no leakage |
| Coolant Resistance Test | Coolant immersion test | No swelling, no decomposition within specified time |
| Visual Inspection | 100% visual inspection | No bubbles, cracks, burrs, or surface defects |
IMPORTANT: The water hose is a critical component of the engine cooling system. Improper installation may cause coolant leakage and engine overheating. Installation should be performed by qualified professionals. Ensure the engine is completely cooled before installation.
- Safety Prep — Ensure engine is completely cooled; disconnect battery negative terminal
- Drain Coolant — Open radiator drain valve; drain coolant to below hose connection level
- Remove Old Hose — Loosen hose clamps at both ends; carefully remove old hose
- Clean Connections — Thoroughly clean cylinder block and cylinder head hose connections
- Inspect Connections — Check connections for corrosion, scoring, or deformation
- Install New Hose — Install new hose onto connections; ensure fully seated
- Install Clamps — Install OEM-spec clamps; torque to workshop manual specification
- Refill Coolant — Fill with ISUZU-specified coolant to proper level
- Bleed Air — Start engine; open bleed screw; bleed air from cooling system
- Check for Leaks — Idle engine; check hose connections for leaks
- Check Level — After engine reaches operating temperature, recheck coolant level
| Item | Interval |
|---|---|
| Cooling System Inspection | Every 20,000 km or 12 months |
| Hose Inspection | Visual inspection during each service |
| Hose Replacement | Immediately when aging, cracking, bulging, or swelling is found |
- Packaging: Neutral carton / Branded color box / Custom branded packaging
- Packaging Unit: 1 piece/box
- Unit Weight: 0.08kg
- HS Code: 400931000
- MOQ: 1 piece; volume discounts available
- Target Customers: Truck parts wholesalers, repair chain stores, fleet purchasers, cross-border e-commerce sellers
Engine Block 5873102680 5-87310268-0 For ISUZU 100P 4JB1 Diesel Engine Parts
Engine Block 5873102680 5-87310268-0 For ISUZU 100P 4JB1 Diesel Engine Parts Part Number: 5873102680 5-87310268-0 Product Name: Engine Block Car Model: ISUZU 100P Engine Model: ISUZU 4JB1 Condition: 100% Brand New Size: Standard Weight: Standard Origin: China Mainland Main Market: Middle East ,Asia...
Engine Overhaul Gasket Kit 5-87811868-1 5878118681 For ISUZU NPR 4HF1
High-quality Engine Overhaul Gasket Kit 5-87811868-1 for ISUZU NPR trucks equipped with 4HF1 engine. Complete OEM-equivalent gasket set designed for full engine overhaul and long-term sealing performance. Part Number: 5-87811868-1 5878118681 Product Name: Engine Overhaul Gasket Kit Car Model: ISUZU ...
Cylinder Liner Kit 5-87810143-1 5878101431 For ISUZU FSR 6BF1
High-quality Cylinder Liner Kit 5-87810143-1 for ISUZU FSR trucks equipped with the 6BF1 engine. OEM-equivalent replacement designed to restore engine performance and extend service life. Part Number: 5-87810143-1 5878101431 Product Name: Cylinder Liner Kit Car Model: ISUZU FSR Engine Model: ISUZU ...
Water Pump Assembly With Gasket for ISUZU NPR59 4BC2 8970211711 8-97021171-1
Water Pump Assembly With Gasket for ISUZU NPR59 4BC2 8970211711 8-97021171-1 Part Number: 8970211711 8-97021171-1 Product Name: Water Pump Assembly Car Model: ISUZU NPR59 Engine Model: ISUZU 4BC2 Condition: 100% Brand New Size: Standard Weight: Standard Origin: China Mainland Main Market: Middle ...
