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Extreme heat can seriously damage your engine. The cooling system absorbs and dissipates the excess heat generated by the engine, and maintains normal operating temperature. The cooling system includes the radiator, cooling fan, water pump, thermostat, coolant, and the necessary hoses, clamps, and fittings. If your engine is overheating or the cooling system is leaking, we have the parts that will make your engine cool again.


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The water pump draws coolant from the radiator and circulates it throughout the cooling system. The water pump housing has a shaft driven at one end by a belt off the crankshaft, and an impeller at the other end that pumps the coolant. The internal seal can fail, causing a leak and damage to the shaft bearings, and the impeller can break or corrode. No matter the cause of the failure, we have the pump that will get you back on the road.

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The radiator is the most important component of the cooling system because it’s here that the exchange of heat takes place. The radiator has many small tubes separated by fins and connected to an inlet and outlet tank. Hot coolant flows through the tubes and transfers heat to the fins, which is carried away by air flowing through the gaps between the fins. Radiators can leak due to corrosion or impact damage, or the tubes and fins can become clogged and obstructed, reducing coolant and airflow. If you’re in need of a radiator, we have a quality replacement that will bolt right in place.

Cooling fans are used to force air through the radiator. This is necessary when the vehicle is stopped or moving slowly to achieve the necessary exchange of heat. There are mechanical fans that are driven by a belt from the crankshaft, and electric fans that operate according to coolant temperature. Both are usually enclosed in a shroud to ensure air is pulled through the radiator. Mechanical fans have a clutch that can fail, and the motor, switch, relay, and other components can fail in the electric fan circuit. Regardless of the fan type or malfunction, we have the replacement parts.

The thermostat is enclosed in a housing on the engine and connected to the radiator by a hose. It remains closed to allow the engine to come to operating temperature quickly and then opens to allow coolant circulation to maintain normal operating temperature. It can fail by sticking in the open or closed position. If stuck open, the engine will run cooler than specified, usually indicated by poor heater performance. A thermostat that sticks closed will cause the engine to quickly overheat. We offer replacement thermostat housings, gaskets, and thermostats that will open at the temperature specified for your vehicle.

Guides & Articles

  • Auto Repair Parts
    "Antifreeze" is a chemical, primarily consisting of ethylene glycol, which when mixed with water serves to lower the freezing point and raise the boiling point of the mixture. Traditionally, the combination of antifreeze and water is known as "coolant". As opposed to air-cooled vehicles which rely on fan-driven air blowing over engine components, water-cooled engines use a radiator, water pump, thermostat, heater core, hoses, and passageways within the engine.
  • Auto Repair Parts
    Everyone knows that your vehicle's engine needs its oil and filter changed at regular intervals. Most folks also know that there are other items which need regular servicing and replacement, such as the air and fuel filters. But what about the cooling system? The fact is, a modern vehicle's cooling system does such a great job at preventing an engine from overheating that we all but ignore it. The reality is, all vehicle manufacturers have a recommended interval when the coolant should be replaced.

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Cooling Parts Reviews

Average rating:  5  4.8 - 183 reviews
Read All Replacement Engine Cooling Parts Reviews
5 of 5
2000 Volvo S70 / Posted by Lillia (Spring, TX) /

I know absolutely zero about cars. A friend told me what I needed, and this sight made it very simple to search and order the part. The price was reasonable, low cost.

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