Description
Product Overview
The Meziere water pump fitting is engineered for precision and durability in demanding automotive environments. Constructed from high‑grade aluminum, the fitting offers a lightweight yet robust solution, finished in a sleek black machined coating that resists corrosion and wear. It features a -20AN O‑ring sealed port for a reliable, leak‑free seal and a -12AN threaded adapter that connects seamlessly to standard hoses. Compact dimensions (6.25 x 4.6 x 2.25 inches) ensure it fits in confined spaces without compromising flow performance.
Usage
Ideal for performance cooling systems, this fitting excels in racing applications, off‑road vehicles, and everyday passenger cars where reliable water circulation is critical. Install it in engine bays, radiators, or custom water‑cooling loops to maintain optimal temperature control. Its secure O‑ring seal and threaded connection make it suitable for high‑pressure environments, ensuring consistent operation under extreme conditions.

Why Choose Us
Meziere combines decades of engineering expertise with rigorous quality control to deliver components that meet automotive standards. Each fitting undergoes precision machining and thorough testing to guarantee dimensional accuracy and seal integrity. The aluminum construction provides excellent thermal conductivity while keeping weight to a minimum, and the black finish adds both aesthetic appeal and protection against the elements.
Key Features
- Lightweight aluminum body with durable black machined finish
- -20AN O‑ring sealed port for leak‑free performance
- -12AN threaded adapter compatible with standard hoses
- Compact size fits tight engine bay spaces
- Designed for high‑pressure, high‑temperature cooling systems
FAQ
What size hose does the -12AN threaded adapter accept?
The -12AN thread is compatible with standard 12AN hoses commonly used in automotive cooling systems, providing a secure fit without additional adapters.
Is the O‑ring seal replaceable?
Yes, the O‑ring can be replaced if wear occurs. Meziere supplies compatible O‑rings to maintain the original sealing performance.
Can this fitting be used in marine applications?
While designed for automotive use, the aluminum construction and sealed design make it suitable for marine cooling systems, provided it is installed with appropriate corrosion‑resistant hardware.
What is the maximum pressure rating?
The fitting is rated for up to 150 psi, making it reliable for most high‑performance cooling circuits.
Does the black finish affect heat dissipation?
The black anodized coating does not significantly impede heat transfer; the aluminum core still offers excellent thermal conductivity for efficient cooling.





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