Why Upgrade Your Overflow Reservoir?

Factory plastic overflow tanks become brittle over time from constant heat exposure and pressure cycling. Aluminum coolant reservoirs provide improved durability, better resistance to cracking, and a cleaner appearance for custom engine bays.

Because nothing kills car show confidence faster than a coolant leak and steam cloud in the parking lot.

Features

• Universal 1-liter coolant overflow tank
• Durable lightweight aluminum construction
• Upgraded black anodized finish
• Helps regulate coolant expansion and recovery
• Compact universal fitment design
• High-quality welded construction
• Corrosion-resistant design
• Includes mounting hardware
• Suitable for street and motorsports applications

[Fitment]Universal coolant overflow tank, fit for most commonly of vehicles.Please measure before purchase to verify there’s enough room for installation.

Common Applications

• Turbocharged imports
• LS-swapped builds
• Honda Civic and Acura Integra projects
• Nissan 240SX and Skyline cooling systems
• Subaru WRX/STI setups
• Drift and track cars
• Custom radiator installations
• Off-road trucks and UTVs
• Classic muscle car cooling upgrades

[Size] The barb fitting has a thread size of M14*1.5,12mm OD, and can work with 3/8″ ID fuel hose. Capacity:1L.

Built for High-Temperature Conditions

Performance cooling systems generate constant pressure and temperature fluctuations under aggressive driving conditions. A properly designed overflow tank helps stabilize coolant expansion while minimizing coolant loss and maintaining consistent system performance.

Especially important when your “simple weekend build” somehow turned into a 700-horsepower science experiment.

[Upgraded] The extent indicator connector used to be replaced with aluminum alloy from plastic, which effectively reduces the danger of cracking or damage to the connector and extends its service life.

Clean Engine Bay Appearance

Beyond performance benefits, aluminum coolant reservoirs dramatically improve engine bay aesthetics compared to faded factory plastic tanks. The compact black finish pairs perfectly with AN fittings, braided hoses, intercooler piping, and aftermarket radiator systems.

Translation: it finally makes your cooling system look intentional.

[Function]Tight closed cap,fully TIG welded and thread come with O-ring gasket,let coolant tank can keep a good closed environment and save you coolant leakage.

Universal Fitment Flexibility

The compact 1L design allows easy mounting in a variety of engine bays and custom fabrication projects. Whether mounted near the radiator, firewall, or tucked into a shaved bay setup, the universal configuration gives builders flexibility for clean installation.

Perfect for enthusiasts who spend more time rerouting hoses than actually driving the car.

[Installation] Barb fittings and bottom drain plugs are supplied with O-rings to verify a good seal and Teflon tape is advisable for installation.

Why Choose EVIL ENERGY?

EVIL ENERGY has become a trusted choice among enthusiasts for affordable performance plumbing, cooling components, and engine bay accessories. Their aluminum overflow tanks combine durability, functionality, and clean styling for builders looking to improve both reliability and appearance without overspending.

Because your coolant tank should not be the weakest part of the build.