EVIL ENERGY 800ml Universal Aluminum Coolant Overflow Tank – Radiator Overflow Bottle

Overview

Discover the EVIL ENERGY 800ml coolant overflow tank, a compact aluminum reservoir designed to handle coolant expansion in a wide range of cars. Its universal approach aims to fit many engine bays without sacrificing clarity or accessibility. The 800ml capacity provides a practical buffer for everyday driving, while the silver aluminum finish adds a clean, modern touch to the engine compartment.

Constructed from an aluminum alloy and paired with an NBR hose, this overflow bottle blends durability with a lightweight profile. A thoughtfully placed 1/16" vent at the top supports heat dissipation, helping to manage pressure as the cooling system warms and cools during operation. An integrated O-ring seal helps reduce the risk of leaks, giving you peace of mind in daily use and longer drives alike.

Key Specifications

• Universal fit designed for most cars; verify space and hose compatibility before installation.
• Capacity 800 ml for efficient coolant management.
• Dimensions Length 7.48 inches, bottom diameter 2.95 inches, cap diameter 1.96 inches.
• Hose size inner diameter 5/16 inch ID for standard coolant hoses.
• Material aluminum alloy tank with NBR hose for durability and flexibility.
• Vent and seal 1/16 inch vent hole plus O-ring seal to help prevent leaks.
• Installation mounts vertically and away from heat sources; installation instructions included.

What you gain in daily use

The tank’s compact form fits into crowded engine bays without crowding essential components. Its lightweight aluminum construction resists corrosion, while the vented top and sealed bottom work together to manage coolant flow as the engine heats and cools. The included instructions simplify mounting and reduce the guesswork that can come with aftermarket parts.

In practice, this overflow tank can support a tidy cooling system, helping to maintain correct coolant levels and reduce the chance of spills during cap lifts or expansion. While not a guarantee of performance, many drivers appreciate the potential for easier maintenance, clear visual monitoring, and a cleaner engine bay aesthetic. To maximize benefits, ensure the bottle sits in a vertical orientation and away from heat sources, with compatible hose connections.

Installation tips and care

• Check space in your engine bay and compare with provided dimensions before purchase.
• Mount vertically as directed and avoid direct proximity to heat sources.
• Use the supplied installation instructions to secure the unit and connect the 5/16 inch hose securely.
• Periodically inspect the O-ring seal and vent hole for cleanliness to maintain reliable operation.