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Coolant and Cooling

1569 products

About Coolant and Cooling

Your cooling system keeps the engine at the right temperature, and a failed part can lead to overheating fast. This range includes water pumps, thermostats, radiator caps, radiator and heater hoses, heater valves, expansion tanks and caps, and fan clutches.

Select your vehicle at the top of the page to see parts that fit. If your water pump is driven by the timing belt, it's worth replacing both together, so see belts and timing. Questions? Call us on 02 9413 3166.

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Coolant and Cooling FAQs

How often should coolant be changed?

It depends on the coolant type and vehicle. Many long life coolants last several years, but follow your vehicle's service schedule. Old coolant loses its corrosion protection over time.

Can I mix different types of coolant?

It's best not to. Different coolant chemistries can react and reduce protection. Use the type your vehicle's manufacturer specifies, and if you're changing type, flush the system first.

What are the signs of a bad thermostat?

Common signs include overheating, a temperature gauge that rises and falls, an engine that takes a long time to warm up, or a heater that blows cool air. A stuck thermostat should be replaced promptly.

What are the signs of a bad water pump?

Look for coolant leaking from the pump's weep hole, a whining or grinding noise from the front of the engine, a wobbling pulley, or overheating.

What should I do if my car is overheating?

Pull over safely and turn the engine off. Don't open the radiator cap while the engine is hot, as the coolant is under pressure. Once it has cooled, check the coolant level and look for leaks, and have it checked before driving far.