Quinton Hazell Water Pump - QCP3914
Best current price£49.99from My Motor World
Best offers
Shopping.co.uk recommended and popular offers
My Motor World£49.99Visit shop Quinton Hazell Qcp3914 Water Pump
Visit shopMy Motor World£49.99Visit shop All Offers
2 offers from £49.99
View price history by clicking the chart icon.
Quinton Hazell Qcp3914 Water PumpFree delivery in 1–3 days£49.99Visit shop →
Product Information
Full details
The Quinton Hazell QCP3914 water pump is designed for automotive technicians and DIY enthusiasts performing cooling system maintenance on specific Lexus vehicles. It provides a robust, mechanically-driven solution to ensure consistent engine temperature management and longevity, though it requires precise installation practices to prevent leaks and ensure mechanical integrity.
All features
| Model Part Number | QCP3914 |
|---|---|
| Brand | Quinton Hazell |
Extended Product Information
FAQs
Does this pump include the gasket?
Yes, the QCP3914 comes with the necessary gasket/seal for installation.
Can I use liquid gasket maker on this pump?
No, you should not use additional sealant. The unit is designed to be installed dry with the provided gasket to maintain integrity.
What is the pulley diameter for this model?
The pulley diameter for the QCP3914 is 105 mm.
Which vehicles is this pump compatible with?
It is designed for various Lexus models, specifically the GS 300h and IS III 300h.
Is this an electric or mechanical water pump?
This is a mechanically-driven water pump designed for use with V-ribbed belts.
Do I need to hire a professional for installation?
Yes, it is highly recommended to have a professional technician install the pump to ensure correct fitment and long-term reliability.
Troubleshooting
Coolant leaking from the pump housing
Ensure the gasket was installed dry without extra sealant and that the mounting bolts were torqued to manufacturer specifications.
Unusual noise coming from the pump area
Check the V-ribbed belt tension; improper tension can lead to premature bearing noise or pulley misalignment.
Engine overheating shortly after installation
Ensure the cooling system was properly bled of all air pockets during the coolant refill process.
Pros and Cons
Pros
- High-quality construction meeting OEM standards
- Includes necessary gaskets and seals for a complete install
- Reliable mechanical operation for consistent cooling
- Perfect fitment for specified Lexus hybrid models
Cons
- Requires professional-level installation knowledge
- Cannot be used with extra liquid sealants
- Limited compatibility only to specific Lexus models
Setup, Compatibility & Care
Before installation, always verify the MPN QCP3914 against your vehicle's VIN to ensure exact compatibility with your specific trim level. Installation should be performed by a professional technician to ensure correct belt alignment and tension. Critically, do not apply any additional gasket sealant or RTV silicone to the mounting surface; the included gasket is engineered to create a perfect seal on its own, and extra chemicals may compromise the pump housing's integrity. When maintaining the vehicle, regularly inspect the cooling system for leaks and ensure the V-ribbed belt remains free of cracks or fraying to protect the pump's pulley interface.