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{"title":"NPR 700P 4HK1 TURBO CHARGE 8980000311 8970786400","imgUrl":"https:\/\/img.chinax.com\/nimg\/bf\/e4\/ab2ffd604bc21336062bab1561b6-200x200-1\/npr_700p_4hk1_turbo_charge_8980000311_8970786400.jpg","attrs":{"Model Number":"NPR 700P 4HK1","Place of Origin":"China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"NPR 4BD2 3.9L CYLINDER HEAD 8971030270","imgUrl":"https:\/\/img.chinax.com\/nimg\/c0\/a8\/bc770a27bfb7fb839df3007b51a1-200x200-1\/npr_4bd2_3_9l_cylinder_head_8971030270.jpg","attrs":{"Model Number":"NPR 4BD2","Place of Origin":"China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
Cooling Fan Clutch 8-97129738-0 For ISUZU NQR66 4HF1 Engine 8971297380 Truck Parts
Function: Precision-engineered viscous fan clutch regulates cooling fan speed based on engine temperature, ensuring optimal cooling and fuel efficiency for ISUZU NQR66 trucks with 4HF1 diesel engines.
Product Overview
The Cooling Fan Clutch / Viscous Fan Clutch (OEM Numbers: 8-97129738-0 / 8971297380) is a premium-quality, direct replacement cooling system component designed specifically for ISUZU NQR66 series medium-duty trucks equipped with the 4HF1 diesel engine. This precision-engineered fan clutch regulates cooling fan speed based on engine temperature, optimizing cooling efficiency, reducing engine drag, improving fuel economy, and minimizing noise during cold starts.
Durable Construction: High-quality materials withstand high temperatures and vibration
Improves Fuel Economy: Reduces engine drag when fan is disengaged
Optimizes Cooling Performance: Engages fan only when needed for efficient cooling
Reduces Noise: Quieter operation during cold starts and light-load conditions
Direct Replacement: Simple installation during cooling system service
Long Service Life: Engineered to withstand heavy-duty commercial operation
Vehicle & Engine Compatibility
This cooling fan clutch is specifically designed for ISUZU medium-duty trucks with 4HF1 engine.
ISUZU NQR66 – Medium-Duty Trucks
ISUZU NPR – Medium-Duty Trucks (various models)
ISUZU NKR – Light to Medium-Duty Trucks
ISUZU ELF (select models with 4HF1 engine)
ISUZU 4HF1 Engine Specifiions
4-Cylinder, Inline Diesel
Displacement: 4.3L (4329cc)
Valvetrain: OHV / SOHC (depending on variant)
Widely used in NQR66 and various medium-duty trucks
Installation Notes
Professional installation recommended. Proper cooling system service is essential.
Allow engine to cool completely before beginning work
Disconnect the negative battery cable
Remove the fan shroud and any blocking components
Loosen and remove the drive belt if necessary for access
Unbolt the fan from the fan clutch
Unbolt and remove the old fan clutch from the water pump hub
Inspect the water pump bearing and shaft for wear or damage
Check the fan blades for cracks, damage, or warping
Inspect the radiator for damage, debris, or blockage
Clean the water pump hub and mounting surface
Inspect the new clutch and verify it matches the original
Position the new clutch on the water pump hub and secure with bolts
Install the fan onto the new clutch and secure with bolts
Reinstall and adjust the drive belt tension if removed
Reinstall the fan shroud or components removed for access
Reconnect the negative battery cable
Start the engine and verify smooth, vibration-free fan operation
Listen for unusual noise or vibration
Allow the engine to reach operating temperature and verify proper fan engagement
Quality Control
Material Verifiion: Confirms housing and internal component materials meet OE specifiions
Dimensional Inspection: Mounting points, shaft dimensions, and overall geometry verified against OEM tolerances
Viscous Drive Testing: Silicone fluid fill and torque transfer characteristics verified
Temperature Response Testing: Bi-metallic coil calibration and engagement temperature verified
Seal Integrity Testing: Sealing verified to prevent fluid leakage
Visual Inspection: 100% checked for casting defects, machining flaws, or damage
Packaged Safely: Protected and securely packaged to prevent damage during transit
Packaging and Delivery
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.
Inquiry
For pricing, availability, or bulk purchase of the Cooling Fan Clutch 8-97129738-0 For ISUZU NQR66 4HF1 Engine 8971297380 truck parts, please contact our sales team for a competitive quote and expert technical support.
Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ... Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ...