LokoCar Coolant Radiator Tank Reservoir Expansion Overflow Tank 2L

In this review the LokoCar 2L coolant radiator overflow tank is examined as a budget-friendly, universal replacement for vehicles needing a compact aluminum expansion reservoir. The review finds it most useful for DIY mechanics and hobbyists who want a well-built, lightweight tank with a tight cap and visible function as an overflow collector. The key reason to consider this part is its combination of sturdy TIG welding and a sealed cap design that helps prevent coolant loss when installed correctly.

Key Features

• Capacity: The 2L storage volume gives adequate reserve capacity for most small to medium cooling systems without taking excessive space in the engine bay.
• Material and Construction: The aluminum body and fully Tungsten Inert Gas welding provide a robust, corrosion-resistant tank that looks and feels durable.
• Fitment: The universal design aims to fit a wide range of vehicles, making it a flexible replacement option when space allows and measurements are confirmed.
• Connections: The male to barb fitting thread size is M14 x 1.5 and is compatible with 3/8' ID hose, which covers common overflow line sizes.
• Sealing: The cap and threaded neck include an O-ring gasket and a tight-closed cap to help maintain a sealed environment and reduce the chance of coolant leakage.

Who It's For

This coolant reservoir is well suited to home mechanics, track-day hobbyists, and anyone who needs a simple, metal replacement overflow tank and can verify fitment before purchase. It appeals to users who prioritize visible quality, such as tidy TIG welding and a secure cap, and who are comfortable fitting or adapting hoses to the M14 x 1.5 barb.

It is less appropriate for buyers who require vehicle-specific mounting brackets, preinstalled elbows and plugs, or a direct OEM replacement that bolts into factory locations without modification. Those who need included fittings should be prepared to source elbows or plugs separately.

Pros & Cons

Pros

• Solid build quality with professional TIG welding that gives a premium look and corrosion resistance.
• Universal sizing and a 2L capacity make it a practical option for many small to medium cooling systems.
• Tight closed cap and O-ring gasket improve airtightness and help prevent coolant escape when installed properly.
• Compatible barb thread (M14 x 1.5) works with standard 3/8' ID hose, simplifying hose connections.

Cons

• Some customers report missing elbows or plugs on arrival, so expect to source small fittings separately.
• Universal fit means no vehicle-specific mounting hardware is included, which can complicate installation for some users.

Specifications

Our Verdict

The LokoCar 2L aluminum overflow tank is a cost-effective, well-made universal option for DIYers who can confirm fitment and are willing to source any small fittings missing from the package. Its TIG welding, sealed cap with O-ring, and standard M14 x 1.5 barb make it a reliable upgrade or replacement for many cooling systems, offering good value for the price when installation planning is handled ahead of time.

Frequently Asked Questions

Will this tank fit my vehicle?
It is a universal tank, so measure your available space and confirm the M14 x 1.5 barb and 3/8' hose compatibility before purchasing.

Are fittings and plugs included?
Some customers have reported missing elbows or plugs, so be prepared to buy those fittings separately if they are not supplied.

How is it sealed to prevent leaks?
The cap and threaded neck include an O-ring gasket and the product recommends using Teflon tape on the thread to enhance airtightness and prevent interface leakage.