OEM Standard Direct Replacement Precision Balanced Cooling Fan for Isuzu NPR 4HF1 Engine

The Cooling Fan (OEM Numbers: 8-97140854-0 / 8971408540 and 8-97141195-0 / 8971411950) is a premium-quality, direct replacement engine cooling component designed for Isuzu NPR series medium-duty trucks equipped with the 4HF1 diesel engine.

• OE Quality: Manufactured to Isuzu dimensional and material specifications for perfect fit and reliable cooling
• Precision Balanced: Each fan is dynamically balanced to minimize vibration and noise
• Heavy-Duty Material: Reinforced plastic or stamped steel resists cracking, warping, and fatigue under high temperatures
• Optimized Blade Design: Engineered for maximum airflow with minimal power draw
• Direct Replacement: Matches factory bolt pattern, pilot diameter, and rotation direction - simple bolt-on installation
• Restores Cooling Performance: Eliminates vibration, noise, and overheating caused by damaged fans
• Cost-Effective: Affordable alternative to genuine OEM fans without compromising quality

This cooling fan is specifically designed for Isuzu NPR trucks with 4HF1 engine.

• ISUZU NPR (NPR59, NPR66, NPR70, NPR71, NPR75, etc. with 4HF1)
• May also fit other Isuzu models with 4HF1 engine - verify compatibility

• 4-Cylinder, Inline Diesel, Direct Injection
• Displacement: 3.9L (3856cc)

Installation steps (typical for engine cooling fan):

1. Disconnect battery negative cable
2. Remove the fan shroud (if equipped) for access
3. If the fan is mounted to a fan clutch, use a holding tool to prevent rotation
4. Remove the mounting bolts (usually 4 or 6) securing the fan to the clutch or water pump hub
5. Remove the old fan. Inspect the fan clutch for leaks or play - replace if necessary
6. Compare new fan with old - verify diameter, bolt pattern, and orientation (some fans have a "front" marking)
7. Install the new fan onto the clutch/hub, ensuring the bolt holes align
8. Hand-start all bolts, then torque to specification (typically 10-15 Nm for M8 bolts, 20-25 Nm for M10). Use a star pattern
9. Reinstall the fan shroud
10. Reconnect battery, start engine, and check for vibration or unusual noise

• Material Verification: Plastic/steel composition and tensile strength tested
• Dimensional Inspection: Overall diameter, blade pitch, mounting hole pattern, and pilot bore verified against OE blueprints
• Dynamic Balance Test: Each fan spun at operating speed to ensure imbalance within tolerance
• Heat Aging Test: Samples exposed to high temperatures to check for warping or cracking
• Visual Inspection: 100% checked for molding defects, cracks, or surface imperfections
• Packaged Safely: Fan wrapped in protective film, boxed with foam or cardboard inserts to prevent blade damage

• 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

For pricing, availability, or bulk purchase of the Cooling Fan 8-97140854-0 For Isuzu NPR 4HF1 Engine 8971408540 Truck Parts, please contact our sales team for a competitive quote and expert technical support.