Overflow Bottle

Overflow BottleOverflow Bottle

Stop coolant leaks and keep your engine running at the right temperature with a quality aftermarket Overflow Bottle from Parts Factory Australia. Each unit is designed for strength and durability, ensuring reliable coolant storage and circulation under pressure.

Shop Popular Options
Nissan Patrol Overflow Bottle β€” OEM-equivalent radiator overflow tank built for long-term reliability
Toyota Corolla Overflow Bottle β€” Direct-fit coolant reservoir with cap included
Ford Falcon Overflow Bottle β€” Heavy-duty expansion tank made for tough Australian conditions

Why Choose Us

  • Aftermarket OEM-equivalent design for exact fitment

  • Prevents overheating and coolant loss

  • Compatible with most radiator and cooling systems

  • Fast local shipping from Australian warehouses

  • Covered by a 3-year replacement warranty

What It DoesOverflow Bottle
An Overflow Bottle (also called a coolant reservoir or radiator expansion tank) stores excess coolant as your engine heats up, returning it to the radiator once temperatures drop. When cracked or leaking, it can cause overheating or pressure loss. Replacing it ensures consistent coolant circulation and system reliability.

FAQs
What are the signs of a bad overflow bottle?
Coolant leaks, overheating, or low coolant levels even after refilling.

Are these genuine parts?
No β€” all are aftermarket OEM-equivalent, built to match factory design and material quality.

Can I install it myself?
Yes β€” most coolant bottles bolt directly in and connect via simple hoses.

Related Parts
Radiators
Coolant Pipes
Thermostat HousingsOverflow Bottle

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