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Cooling Fan 5136620121 For Isuzu NPR 4HE1 Engine 5-13662012-1 Industrial Fan
Product Overview
The Cooling Fan (OEM: 5136620121 / 5-13662012-1) is a direct-fit, OE-quality fan blade assembly designed for Isuzu NPR trucks equipped with the 4HE1 diesel engine, as well as various industrial applications. This engine cooling fan draws air through the radiator to dissipate heat from the coolant, preventing engine overheating and maintaining optimal operating temperature.
Part Number
5136620121, 5-13662012-1
Product Name
Cooling Fan / Engine Cooling Fan
Car Model
ISUZU NPR
Engine Model
ISUZU 4HE1 (4.8L / 5.2L Diesel)
Condition
100% Brand New
Material
High-strength aluminum alloy & precision bearings
Cooling Type
Engine coolant circulation
Installation
Direct OEM replacement
Quality Standard
OEM equivalent / ISO quality control
Features & Advantages
OE Quality: Manufactured to Isuzu dimensional and material specifications for perfect fit and reliable cooling
Precision Balanced: Dynamically balanced to minimize vibration and noise, extending fan clutch and bearing life
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
Vehicle & Engine Compatibility
This cooling fan is specifically designed for Isuzu NPR trucks with 4HE1 engine, and also fits various industrial applications.
Isuzu Truck Models:
ISUZU NPR (medium-duty truck, 4HE1 engine, model years 1995-2005 typical)
ISUZU NKR (select models with 4HE1 - verify)
Industrial Applications:
4HE1 engines used in generators, compressors, forklifts, and other stationary equipment
Engine Specification - ISUZU 4HE1:
4-Cylinder, Inline Diesel
Displacement: 4.8L (4770cc) or 5.2L (depending on variant)
Application: NPR, NKR, industrial power units
Installation Notes
Installation steps (typical for engine cooling fan):
Disconnect battery negative cable
Remove the fan shroud (if equipped) for access
If the fan is mounted to a fan clutch, use a holding tool to prevent rotation
Remove the mounting bolts (usually 4 or 6) securing the fan to the clutch or water pump hub
Remove the old fan. Inspect the fan clutch for leaks or play - replace if necessary
Compare new fan with old - verify diameter, bolt pattern, and orientation (some fans have a "front" marking)
Install the new fan onto the clutch/hub, ensuring the bolt holes align
Hand-start all bolts, then torque to specification (typically 10-15 Nm for M8 bolts, 20-25 Nm for M10). Use a star pattern
Reinstall the fan shroud
Reconnect battery, start engine, and check for vibration or unusual noise
Quality Control
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 ≤ 5g*cm
Heat Aging Test: Samples exposed to 100°C for 500 hours 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
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 5136620121 For Isuzu NPR 4HE1 Engine 5-13662012-1 Industrial Fan, 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 automotiv... 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 automotiv...
