1L Aluminum Radiator Coolant Overflow Bottle Recovery Water Tank Reservoir

1L Aluminum Radiator Coolant Overflow Bottle Recovery Water Tank Reservoir

This 1L aluminum coolant overflow bottle catches expanding coolant from the radiator and returns it as the system cools, keeping the cooling circuit topped off. The recovery water tank reservoir holds roughly one liter and mounts in the engine bay of a wide range of vehicles. The aluminum overflow bottle is a practical replacement for cracked or missing plastic tanks.

Overview

This 1L aluminum radiator coolant overflow bottle serves as the recovery and reservoir tank for a liquid cooling system, capturing coolant pushed out through the radiator cap and drawing it back on cooldown. The tank is made from aluminum for strength and resistance to the heat cycling that shortens the life of plastic bottles. It suits drivers and builders who want a durable reservoir for a custom or repaired cooling setup.

Built For Performance

• Aluminum body resists cracking and heat fatigue better than plastic tanks
• One liter capacity for a useful reserve of coolant between services
• Inlet and outlet fittings for hose connection to the radiator overflow path
• Vent or cap fitting to allow pressure equalization as coolant moves
• Lightweight construction that adds little weight to the engine bay
• Universal mounting format that suits many custom and repair applications

On-The-Job Use

• Replacing a cracked or discolored factory overflow bottle
• Custom engine swaps and cooling system builds
• Track and off-road cars where a sturdy reservoir is wanted
• Cooling system service where the original tank is no longer available
• Radiator swaps that need a compact one liter recovery tank

Specs At A Glance

Good To Know

Q: Can this tank be used on any vehicle? A: It is a universal style reservoir, so mounting points and hose routing need to be checked against your engine bay. Confirm the fitting sizes match your radiator overflow hose before installing.

Q: Does the tank come with a cap or fittings? A: Check the listing photos and details for exactly what is included with the bottle. Any additional fittings, hose, or mounting hardware may need to be sourced separately.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.