Water Pump - Quinton Hazell - QCP3920
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Product Information
Full details
The Quinton Hazell QCP3920 water pump is designed for Mazda MX-5 IV (ND) owners looking for a reliable replacement component to maintain optimal engine cooling. This high-quality pump ensures consistent coolant circulation and engine temperature management, though users should confirm their specific engine model and manufacturing year before purchase to ensure perfect compatibility.
All features
| Model Part Number | QCP3920 |
|---|---|
| Brand | Quinton Hazell |
Extended Product Information
FAQs
Is this pump compatible with my Mazda MX-5 NC?
No, the QCP3920 is specifically designed for the MX-5 IV (ND) model (2015-onwards).
Does this pump come with a warranty?
Warranty terms vary by retailer; please consult your point of purchase for specific coverage details.
What OEM parts does this replace?
It replaces OEM references P51B15010B and P51B15100B.
Should I replace the coolant when installing this pump?
Yes, it is standard practice to drain and refill with fresh, factory-approved coolant to prevent contamination and debris buildup.
What are the dimensions of the impeller and pulley?
The impeller diameter is 56.5 mm, and the pulley diameter is 52 mm.
Troubleshooting
Coolant leaking from the pump area
Verify the installation gasket is correctly seated and mounting bolts are torqued to factory specifications.
Engine temperature rising rapidly
Ensure the cooling system was properly bled of air bubbles during installation; trapped air can prevent coolant flow.
Pros and Cons
Pros
- High-quality construction for long-term durability
- Guaranteed fitment for specified Mazda MX-5 models
- Efficient coolant circulation prevents engine overheating
- Direct replacement for factory OEM parts
Cons
- Specific to Mazda MX-5 IV (ND) models only
- Requires professional installation for best results
- Does not include gaskets if not specified by the kit contents
Setup, Compatibility & Care
Compatibility: This pump is specifically designed for the Mazda MX-5 IV (ND) series, covering both 1.5 and 2.0 petrol engine variants produced from 2015 onwards. Always verify your VIN or original part number against OEM references P51B15010B or P51B15100B.
Setup: Installation involves draining the cooling system and removing the existing water pump assembly. Due to the proximity of the timing belt or drive belt components, it is strongly recommended that this part be installed by a qualified mechanic.
Care: To extend the life of your new water pump, use only the manufacturer-recommended coolant type and maintain the proper mixture ratio. Regularly inspect the pump area for signs of crusty coolant deposits, which may indicate early stage seal failure.