Quinton Hazell Water Pump - QCP3929
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Product Information
Full details
The Quinton Hazell Water Pump (QCP3929) is a precision-engineered replacement component designed for Nissan vehicle owners looking to restore or maintain their engine cooling system. Its primary benefit is the assurance of consistent coolant circulation, which is critical for heat dissipation and preventing engine overheating. While it is built to exact specifications for a direct fit, professional installation or advanced mechanical knowledge is recommended to ensure proper system flushing and gasket sealing.
All features
| Model Part Number | QCP3929 |
|---|---|
| Brand | Quinton Hazell |
Extended Product Information
FAQs
What is the impeller diameter for this pump?
The Quinton Hazell QCP3929 features a 77 mm impeller diameter.
Does this pump include a mounting gasket?
Yes, it is standard practice for this replacement unit to be installed with the included gasket to ensure a leak-proof seal.
How many wings does the impeller have?
The impeller is equipped with 5 wings to optimize coolant circulation efficiency.
Is this a direct replacement for my Nissan?
The QCP3929 is designed as a direct replacement for specific Nissan models; please verify your VIN or engine model against the manufacturer compatibility list.
What should I do if the pump begins to leak from the weep hole?
A leak from the weep hole indicates an internal seal failure. The pump should be replaced as soon as possible to prevent engine damage.
Troubleshooting
Engine overheating after installation
Check for air pockets in the cooling system and perform a proper bleeding procedure.
Coolant leak at the pump mounting face
Verify that the gasket is seated correctly and that all mounting bolts are tightened to the correct manufacturer torque specifications.
Whining or grinding noise from the pump area
Check the belt tension; an over-tightened belt can place excessive load on the water pump bearings.
Pros and Cons
Pros
- Engineered for durability and long-term reliability
- Matches exact OE specifications for easy installation
- Efficient impeller geometry promotes optimal heat transfer
- High-quality materials resist premature wear and cavitation
Cons
- Requires proper cooling system flushing upon installation
- Gasket sealing requires attention to detail to prevent leaks
- Professional installation recommended to avoid air pockets in the cooling system
Setup, Compatibility & Care
To ensure the longevity of your Quinton Hazell water pump, follow these maintenance and installation practices:
- Compatibility: Verify your specific Nissan model and engine code matches the QCP3929 application requirements before starting.
- System Flush: Before installing the new unit, drain the old coolant and flush the system to remove any debris or scale that could damage the new seals.
- Gasket Sealing: Use a high-quality, manufacturer-recommended gasket sealant if the instructions specify, and ensure the mating surfaces are completely clean of old gasket material.
- Air Bleeding: After installation, fill the system with new coolant and run the engine with the heater on to 'bleed' air from the system. Air pockets can cause the pump to cavitate, leading to premature failure.
- Maintenance: Inspect for signs of coolant leaks around the weep hole during regular oil changes.