What is the main benefit of an aluminum expansion tank over a plastic one?

Aluminum tanks are generally more durable and resistant to cracking or becoming brittle over time compared to plastic. They also offer better heat dissipation, which can be a small advantage in the cooling system.

Does this expansion tank come with a new radiator cap?

The Koyo RT001 expansion tank is designed as a direct replacement for the stock reservoir. It does not include a new radiator cap; you will need to reuse your existing cap or purchase one separately if needed.

What tools are typically needed to install this expansion tank?

Installation usually involves basic hand tools such as screwdrivers or socket wrenches to remove the old tank and secure the new one. You will also need to disconnect and reconnect coolant hoses.

Koyo All-Aluminum Expansion Tank

Name: Koyo 06-15 Mazda Miata NC All-Aluminum Reservoir Expansion Tank
Brand: Koyo
SKU: koyo-koyo-06-15-mazda-miata-nc-all-aluminum-reservoir-expansion-tank-t14-815873
Price: 333.80 USD
Availability: InStock

Koyo 06-15 Mazda Miata NC All-Aluminum Reservoir Expansion Tank

$333.80

Only 4 left in stock

Koyo 06-15 Mazda Miata NC All-Aluminum Reservoir Expansion Tank

Key Features

Fits 2006-2015 Mazda Miata NC.
Constructed entirely from aluminum for light weight and heat dissipation.
Direct replacement for the stock plastic coolant reservoir.
Helps maintain proper cooling system pressure by managing coolant expansion.
Well-built for improved durability over plastic components.

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Product Details

This Koyo expansion tank is built entirely from aluminum, a material chosen for its light weight and good heat dissipation compared to plastic. It's designed to replace the stock plastic coolant reservoir on your 2006 through 2015 Mazda Miata NC, providing a more durable and potentially longer-lasting solution for managing your cooling system's overflow. The all-aluminum construction means it won't become brittle over time like plastic tanks can, which can lead to cracks and coolant leaks.

The RT001 is a direct replacement part, meaning it's made to install in the same location and connect to the same hoses as your original tank. This makes the installation process straightforward, often requiring only basic hand tools. Having a well-built expansion tank is important because it allows your coolant to expand safely as it heats up, and then contract back into the system as it cools, maintaining proper pressure and preventing air from entering the system. This Koyo unit offers a solid upgrade for Miata owners looking for improved reliability in their cooling system.