Water Pump - Quinton Hazell - QCP3651
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Product Information
Full details
The Quinton Hazell QCP3651 water pump is an essential cooling system replacement component designed for automotive technicians and DIY enthusiasts performing timing belt maintenance. It provides reliable coolant circulation via a high-precision mechanical impeller, ensuring engine thermal stability under various driving conditions. While it is built to exact OE specifications for seamless integration, the primary caveat is that it must be installed without additional sealant to maintain the integrity of the included precision gasket.
All features
| Model Part Number | QCP3651 |
|---|---|
| Brand | Quinton Hazell |
Extended Product Information
FAQs
Can I use liquid gasket sealant with this pump?
No. The QCP3651 is designed to be installed with the included gasket alone. Additional sealant can cause leaks or clogs.
Does this pump include the pulley?
Yes, the unit comes with a factory-specified 56 mm pulley integrated into the pump assembly.
What is the impeller diameter?
This model features a 60 mm impeller with 6 wings.
Is this a direct replacement for QCP3299?
Yes, the QCP3651 is designed to replace the QCP3299 part number.
How often should I replace my water pump?
Water pumps are typically replaced at the same interval as your timing belt, as the pump is often driven by the belt.
Troubleshooting
Coolant leak observed after installation
Verify that the gasket is perfectly aligned and that no liquid sealant was added, as this can prevent a proper seat.
Unusual noise coming from the pump area
Check the timing belt tension; excessive tension can cause premature bearing noise, while insufficient tension may cause belt slip.
Engine overheating shortly after replacement
Ensure all air pockets are purged from the cooling system after the pump installation, as airlocks prevent coolant circulation.
Pros and Cons
Pros
- Direct fit for specified timing belt systems
- High-quality gasket included in the package
- Compatible with major aftermarket brands like Bosch and Airtex
- Sturdy construction ensures long-term durability
Cons
- Strict requirement to avoid additional liquid sealant
- Requires professional timing belt knowledge for installation
- Limited compatibility range; check vehicle fitment carefully
Setup, Compatibility & Care
Installation of the Quinton Hazell QCP3651 should only be attempted if you have the tools to perform a timing belt service.
- Compatibility Check: Always cross-reference the QCP3651 with your specific vehicle's engine code to ensure the impeller diameter and pulley size match your existing system.
- Installation: Remove the old pump and clean the mating surface thoroughly to ensure the new gasket creates a flush seal.
- Sealant Warning: Do not use RTV or liquid silicone sealants on the gasket. These products can clog the cooling system or interfere with the integrity of the included seal.
- Flushing: It is recommended to flush the cooling system of old, contaminated coolant before installing the new pump to prevent premature wear on the new impeller blades.