EPDM Rubber Fabric Reinforced Radiator Outlet Hose OEM Standard for Isuzu NPR NQR 4HF1 4HG1 4HK1

The Radiator Outlet Hose (OEM Numbers: 8-97090584-0 / 8970905840) is a premium-quality, direct replacement cooling system component designed for Isuzu NPR and NQR series medium-duty trucks equipped with 4HF1, 4HG1, or 4HK1 diesel engines.

Function: Black rubber radiator outlet pipe (water hose) transports hot coolant from the engine to the radiator for cooling. Ensures proper coolant circulation and engine temperature regulation.

• OE Quality: Manufactured to Isuzu dimensional and material specifications for perfect fit and reliable sealing
• EPDM Rubber: Resists heat (up to 125°C), coolant chemicals, ozone, and aging
• Fabric Reinforcement: Prevents swelling and bursting under pressure
• Pre-Molded Shape: Matches factory routing, eliminates kinking
• Direct Replacement: Simple clamp-on installation - no cutting or trimming
• Restores Cooling System Integrity: Eliminates coolant leaks and overheating risk
• Cost-Effective: Affordable alternative to genuine OEM hoses

This radiator outlet hose is specifically designed for Isuzu NPR and NQR trucks with 4HF1, 4HG1, or 4HK1 engines.

• ISUZU NPR (NPR59, NPR66, NPR70, NPR71, NPR75, etc.)
• ISUZU NQR (medium-duty truck)
• May also fit other Isuzu medium trucks with these engines - verify

Required Tools: Screwdriver (or nut driver for clamps), new hose clamps (recommended), coolant catch pan, fresh coolant.

1. Allow engine to cool completely
2. Drain coolant to a level below the hose connection
3. Remove the old hose clamps and carefully remove the old hose
4. Clean the radiator inlet neck and engine outlet pipe
5. Inspect the connections for corrosion or damage
6. Install new hose clamps loosely on the new hose
7. Slide the new hose onto both connections
8. Position the hose correctly (no twists or kinks)
9. Tighten clamps to specification (do not overtighten)
10. Refill coolant and bleed the cooling system
11. Start engine, bring to operating temperature, and check for leaks

• Material Verification: Rubber compound tested for heat and chemical resistance
• Dimensional Inspection: Inner diameter, length, and bend angles verified
• Burst Pressure Test: Sample hoses pressurized to exceed OE standards
• Visual Inspection: 100% checked for cracks, pinholes, or molding defects
• Packaged Safely: Coiled or straight, sealed in plastic bag, boxed

• Neutral export packing or customized packaging available
• Carton or wooden case for safe transportation
• Fast delivery for stock items
• Shipping by Express Air or Sea