EVIL ENERGY Coolant Overflow Tank 800ml Universal Aluminum - Durable

In this review the EVIL ENERGY Coolant Overflow Tank is evaluated as a simple, functional upgrade for anyone who wants a durable replacement or an upgraded radiator overflow bottle. The bottom line: this 800ml aluminum tank is best for drivers who need a compact, well-built recovery bottle that is easy to install and resists leakage. Its universal fit and machined aluminum body make it a practical choice for many vehicles, provided there is enough space to mount it vertically and away from heat sources.

Key Features

• Universal fit: The tank is designed to suit most cars so buyers can often replace a worn bottle without sourcing a model-specific part.
• Compact size: At 7.48in long with a 2.95in base diameter and 800ml volume it provides adequate coolant capacity without taking excessive space in the engine bay.
• Aluminum construction: The aluminum alloy body improves durability and resists corrosion compared with many plastic aftermarket bottles.
• Anti-leak design: An O-ring seal and a 1/16in ventilation hole on the cap help prevent leakage while allowing heat dissipation.
• Included hose: The kit ships with an NBR fuel hose with a 5/16in ID, ready for straightforward connection to standard radiator fittings.

Who It's For

This overflow tank suits DIY mechanics and owners of older cars seeking a sturdier replacement for a cracked plastic bottle. It is also a good pick for people who want a cleaner-looking engine bay thanks to the machined aluminum finish and a compact, 800ml capacity.

It is not the right choice for anyone who cannot accommodate the tank's 7.48in length or cannot mount the unit vertically and away from exhaust manifolds or other heat sources. Also, those who need a vehicle-specific mounting bracket should check fitment first, since the universal kit may require custom mounting in some installations.

Pros & Cons

Pros

• Quality aluminum construction gives a solid feel and improved longevity over many plastic alternatives.
• Easy to install for most users, with included hose and basic instructions speeding the process.
• Good value for money given the build quality and included fittings.
• Vent hole and O-ring seal reduce the chance of pressure-related leaks and allow heat to escape.

Cons

• Universal mounting can be hit-or-miss; some customers reported mixed fit and finish related to the mounting system.
• Requires vertical installation and clearance from heat sources, which limits placement in some engine bays.

Specifications

Our Verdict

The EVIL ENERGY 800ml overflow tank is a practical, well-built replacement for drivers who want improved durability and a neat appearance in the engine bay. It offers solid build quality, useful included fittings, and sensible features like an O-ring seal and vent hole, making it a good value for most applications as long as there is room to mount it vertically.

Frequently Asked Questions

Will this tank fit my car?
It is a universal design that fits many vehicles, but confirm you have enough vertical clearance for the 7.48in length and room to mount it away from heat sources.

Is the hose included suitable for standard radiator lines?
Yes, the kit includes an NBR hose with a 5/16in ID that connects to common overflow fittings.

Does it prevent coolant leaks?
The tank uses an O-ring seal at the cap and a small 1/16in ventilation hole to manage pressure and heat; these features reduce leakage when installed correctly.