Radiator Hoses

Radiator Hoses carry coolant between the engine, radiator and related cooling system components. They are exposed to heat, pressure, coolant and engine bay conditions, so they can harden, swell, split or leak over time. A failed radiator hose can quickly lead to coolant loss and overheating.

Brands such as Gates, Mackay Rubber, VAICO, Dayco and ACKOJA offer radiator hose options across many vehicle applications. The correct hose depends on the vehicle, engine, hose position, shape, length and cooling system layout.

Why Radiator Hose Condition Matters

Radiator hoses need to hold pressure and maintain coolant flow through the cooling system. A weak hose can leak, collapse or burst, especially when the engine is hot and the system is under pressure.

Upper and lower radiator hoses are not usually interchangeable, and some vehicles use multiple shaped hoses, bypass hoses or heater hoses in the same cooling system. Matching the correct hose position is important.

Common Signs You May Need Radiator Hoses

• Coolant leak: Coolant may be visible around hose ends, clamps or split sections.
• Swollen hose: Bulging can indicate internal weakness.
• Hard or brittle rubber: Old hoses can lose flexibility and crack.
• Soft spots: A hose that feels weak or spongy may be deteriorating.
• Overheating: Coolant loss or poor flow can cause temperature issues.
• Coolant smell: A sweet smell may indicate a small leak.
• Cooling system service: Hoses are often checked when replacing coolant, radiators, thermostats or water pumps.

Choosing the Right Radiator Hose

The easiest way to find the right radiator hose is to use our simple rego finder or manually select your vehicle. This helps narrow the product list to options suited to your vehicle, so you are not sorting through hoses that may not match your engine, hose position or cooling system layout. Always check the product page for any specific notes.

When comparing suitable options, confirm whether the hose is upper, lower or another cooling system hose. It is also worth considering clamps, coolant condition, thermostat operation and other cooling parts where applicable.