Hoses - Radiator & Heater

Your vehicle’s cooling system works under constant heat and pressure. Radiator hoses, heater hoses, and coolant hoses carry coolant between the engine, radiator, and heater core to regulate operating temperature. When a hose weakens or fails, coolant loss can quickly lead to overheating and potential engine damage.

Repco stocks a comprehensive range of quality hoses from trusted brands including Gates, Mackay, Dayco, and Goss. Manufactured to meet or exceed OEM specifications, these hoses are designed to resist electrochemical degradation, ozone exposure, heat cycling, and chemical breakdown. Selecting the correct hose for your vehicle ensures proper fitment, reliable sealing, and long service life.

How much does it cost to replace a radiator hose?

The cost to replace a radiator hose typically ranges between $50 and $150, including parts and labour. The hose itself generally costs between $15 and $50 depending on vehicle type, hose design, and material quality. Performance or specialised moulded hoses may sit at the higher end of this range.

Labour time usually falls between 30 and 60 minutes for straightforward replacements. Costs can increase if access requires removal of intake components, engine covers, or other surrounding parts. Replacing both upper and lower hoses at the same time can be cost effective, particularly on higher kilometre vehicles.

How long does it take to change a radiator hose?

In most vehicles, replacing a radiator hose takes approximately 30 to 60 minutes. The process includes safely draining coolant, loosening hose clamps, removing the old hose, fitting the replacement, refilling coolant, and bleeding any air from the system.

Vehicles with tighter engine bays or complex layouts may require additional time. After installation, it is essential to run the engine to operating temperature and check for leaks. Confirming correct clamp tension and coolant level ensures the system operates as intended.

What other things should I check when changing a radiator hose?

Replacing a radiator hose presents a good opportunity to inspect the broader cooling system. Heater hoses should be checked for cracking, swelling, or oil contamination. Hose clamps should be examined for corrosion or loss of tension and replaced if necessary.

Coolant condition is equally important. Discoloured, rusty, or contaminated coolant should be flushed and replaced according to manufacturer specifications. Inspect the radiator core for signs of leaks or physical damage. Confirm the thermostat opens correctly and that the water pump shows no signs of seepage or bearing noise. Addressing these components together supports consistent temperature control and reduces the risk of repeat repairs.

How long do radiator hoses last?

Radiator hoses generally last between four and seven years, depending on vehicle usage and environmental conditions. Continuous exposure to engine heat, pressure fluctuations, and chemical interaction with coolant gradually degrades rubber compounds.

Vehicles operating in high temperature climates, towing heavy loads, or travelling long distances may experience accelerated wear. Even if the outer surface appears intact, internal deterioration can occur. Preventative replacement around the five year mark can help avoid unexpected roadside failures.

How do I check radiator hoses?

Routine inspection can be carried out during regular servicing. With the engine cool, visually inspect hoses for cracks, bulges, splits, or coolant residue around connections. Squeeze along the hose length to assess firmness. A healthy hose should feel firm yet flexible, not brittle, excessively soft, or spongy.

Check for swelling near clamp areas and listen for hissing sounds when the engine is running, which may indicate a pressure leak. Monitor coolant levels and watch for warning lights or rising temperature readings.

Signs Your Radiator Hose May Need Replacement

• Engine overheating: Persistent high temperature readings may indicate restricted coolant flow or a leaking hose.
• Low coolant levels: Frequent top ups can signal a leak within the cooling system.
• Visible coolant leaks: Puddles beneath the vehicle or a sweet coolant smell while driving require immediate inspection.
• Spongy or swollen hoses: Soft or bulging sections suggest internal weakening and increased risk of rupture.

Quality Construction for Long Term Reliability

Repco’s radiator hose range is engineered for durability and consistent performance. Features include resistance to electrochemical degradation, high quality rubber compounds for extended service life, and protection against ozone, heat, and chemical exposure. Precision moulding ensures correct routing and secure sealing within the engine bay.

Shop with Repco to Find the Right Radiator Hose and Clamps Today

Repco offers a wide selection of radiator hoses, heater hoses, clamps, radiator caps, drive belts, and water pumps to support complete cooling system maintenance. Whether maintaining a daily driver, preparing a touring vehicle, or working on a project car, selecting dependable cooling components helps protect engine performance and reliability.

Ensuring your cooling system remains in peak condition reduces the risk of overheating, extends engine life, and supports confident driving in all conditions.