The Water Pump for Isuzu 4HK1 Engine is an essential cooling component that circulates coolant throughout the engine to regulate temperature and prevent overheating. Manufactured with precision-machined impellers and seals, this pump ensures consistent coolant flow, leak-free operation, and long-term durability.
Built to OEM specifications, it fits perfectly in Isuzu NPR, NQR, and NRR trucks powered by the 4HK1 diesel engine. The pump housing is made from high-grade cast aluminum or iron, resistant to corrosion and thermal stress, ensuring reliable cooling performance in all driving conditions.
Ideal for engine rebuilds, preventive maintenance, or water pump replacement, this part restores the original efficiency and protects your engine from heat damage.
🔧 Key Features
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✅ OEM-spec Water Pump for Isuzu 4HK1 engines
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✅ Ensures steady coolant circulation for optimal temperature control
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✅ Precision-engineered impeller for improved coolant flow
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✅ Durable housing resists corrosion and heat damage
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✅ Leak-proof seals for long service life
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✅ Direct-fit replacement for easy installation
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✅ Enhances overall cooling system performance
⚙️ Compatible Applications
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Engine Model: Isuzu 4HK1
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Vehicle Models: Isuzu NPR, NQR, NRR
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Function: Circulates coolant through engine block and radiator
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Fitment Type: OEM-spec direct replacement
🌟 Benefits
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Prevents overheating and coolant leaks
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Restores proper engine cooling efficiency
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Extends engine and head gasket life
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Improves fuel efficiency and performance
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Designed for durability in heavy-duty operations
FREQUENTLY ASKED QUESTIONS (FAQ)
What does the water pump do in an Isuzu 4HK1 engine?
The water pump circulates coolant throughout the engine to regulate temperature, preventing overheating and maintaining efficient performance.
Is this water pump compatible with the Isuzu 4HK1 engine?
Yes, this OEM-spec water pump is designed specifically for the Isuzu 4HK1 engine, commonly used in NPR, NQR, and NRR trucks.
What are the signs of a failing water pump?
Common symptoms include coolant leaks, overheating, unusual noises, or low coolant flow. If any of these occur, replacement is recommended.
Is installation difficult?
The pump is a direct OEM-fit replacement and can be installed easily with standard tools. Professional installation is recommended for best results.
How often should the water pump be replaced?
Typically, a water pump lasts between 60,000 to 100,000 miles. Replacement should coincide with major cooling system maintenance or timing belt service.
Does this water pump include a gasket?
Yes, most OEM-spec water pumps include a gasket or seal to ensure proper leak-free installation.
Specs: This Water Pump Pully have 6 holes 4 big and two small
Industrial Applications
Excavator, Heavy Machinery
OEM Reference: 8980228721, TSD-090, TSD090, 8980388450, 8-98038-845-0
Note: Provide Vin / Serial Number for identification of Water Pump as its Design changes according to the Machine Application
Click Here for Isuzu Truck Applications NPR, NQR, NRR, NPR-HD, Chevy, GMC
