LokoCar Coolant Expansion Reservoir Tank 1L Aluminium Silver — TIG-welded, M14×1.5 inlet, O-ring cap

LokoCar's 1‑liter aluminum coolant expansion reservoir tank is a universal, TIG‑welded overflow bottle designed to replace or upgrade factory reservoirs and keep your cooling system sealed and vented.

This compact 1L silver tank provides a corrosion‑resistant alternative to plastic overflow bottles, with a threaded M14 × 1.5 male barb inlet that accepts 3/8" ID hose and a pressure‑cap compatible design. Built with full Tungsten Inert Gas welding and an O‑ring sealed cap, the unit is intended for universal fitment across a wide range of vehicles; measurement before purchase ensures proper clearance and fit. The bottom port serves as the radiator‑overflow connection while the top port vents excess fluid, and the package recommends Teflon tape on threads to improve airtightness at installation.

How does this reservoir integrate with my existing cooling system?

The LokoCar tank functions as an overflow and recovery container that accepts excess coolant when system pressure rises, then returns fluid as the engine cools. It connects to your radiator via the bottom port and vents through the top port, using standard hose sizes and an M14 × 1.5 barb thread for a secure connection.

• Bottom port = radiator overflow inlet for returning coolant.
• Top port = tank vent/overflow outlet to atmosphere or catch line.
• Thread size M14 × 1.5 compatible with 3/8" ID hoses.
• O‑ring sealed cap and TIG welding for leak resistance.

Will this aluminum tank fit my vehicle and how do I check?

The reservoir is sold as a universal item but requires a physical fitment check because mounting space varies by vehicle. Measure available engine‑bay clearance, confirm hose routing, and verify the M14 × 1.5 barb aligns with your overflow hose or can be adapted with common fittings.

• Measure height, width, and mounting area before buying.
• Confirm 3/8" ID hose compatibility or use an adapter.
• Consider brackets or zip ties for secure mounting if required.
• Use Teflon tape on threads to improve sealing at the interface.

What materials and build features improve durability and sealing?

This LokoCar reservoir is made from aluminum and assembled using Tungsten Inert Gas (TIG) welding, which creates strong, corrosion‑resistant seams. The threaded filler comes with an O‑ring gasket to help maintain a closed environment and minimize leakage under normal operating conditions.

• Aluminum construction reduces rust and warping over time.
• TIG welding provides high‑strength, clean welds at seams.
• O‑ring gasket on the cap enhances pressure retention.
• Recommended use of Teflon tape for extra airtightness.

Who is this reservoir for? This LokoCar 1L aluminum expansion tank is aimed at car enthusiasts, DIY mechanics, and anyone replacing a cracked plastic overflow bottle or upgrading to metal for improved longevity. It's suitable for many passenger cars, light trucks and custom builds where a 1‑liter capacity and M14 × 1.5 barb fitment meet the vehicle's hose size and space constraints. If you prefer a compact, metal overflow solution with reliable welds and a sealed cap, this reservoir is a practical, serviceable upgrade—just measure first and plan hose adapters or mounting hardware as needed.