They transport coolant (antifreeze and water mixture) between the radiator, water pump, engine and heater core. This allows the coolant to circulate and carry heat away from these critical components.
They help maintain the proper coolant temperature in the engine. As the coolant absorbs heat from the engine, it flows through the radiator hoses to the radiator where it loses heat to the air. This prevents the engine from overheating.
They expand and contract slightly as the coolant temperature changes. The radiator hoses produced by radiator hose supplier are made of a flexible material that expands when hot and contracts when cold. This allows the hoses to maintain their connections despite temperature differences in the cooling system.
They prevent coolant leaks.
The radiator hoses have reinforced inner linings and outer sleeves that provide an flexible seal, keeping the coolant contained within the cooling system. Cracks, tears or holes in the hoses can lead to coolant leaks.
High-quality hoses last longer.
Original equipment radiator hoses are made of durable materials to match the vehicle model and environment. Replacing them with cheap aftermarket hoses can reduce their lifespan and performance.
Radiator hose problems.
Some common issues with radiator hoses include:
Cracks, splits or holes:
Allowing coolant to leak from the system. These can form from heat cycles, damage or manufacturing defects.
Tiny holes caused by corroding or cracking inner liner material. Can leak coolant over time.
Fraying or wearing:
Damage at the hose ends or bends in the hose from constant motion, heat and pressure cycling. Can allow leaks to develop.
Permanent bend or crimp in the hose restricting or blocking coolant flow. Has to be replaced.
Lack of flexibility:
Old or cheap radiator hoses become brittle and inflexible, unable to properly expand and contract. Has to be replaced.
Bubbles or soft spots:
Areas where air bubbles or weakened internal material allow lower coolant pressure. Can burst from higher pressures, causing leaks. Requires replacement.
The radiator hose manufacturer solution is to inspect your radiator hoses regularly for any signs of damage, leaks or reduced flexibility and replace them as needed to ensure your engine continues running efficiently and without overheating issues.