Performance Radiators

2-, 3-, & 4-Row Cores, High Capacity Radiators, Aluminum Shrouds

If your car’s radiator fails, your car will grind to a halt in short order. Two-thirds of the energy in a gallon of gasoline turns to heat, and it’s the responsibility of the radiator to remove that heat. Radiators fail because the coolant has failed, permitting corrosion which causes leaks. Sometimes they’re damaged by accidents or vibration, but invariably the fix is the same: a new radiator.

We aim to provide our customers with the finest Performance Radiators the industry can offer, which is why we accept no compromise when it comes to the quality. Created by the most reputable names in the industry, such as Flex-a-lite, Mishimoto, Omix-Ada, Mr Gasket the Performance Radiators we've gathered for you feature precise design and everlasting durability.

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Coolant is pumped through passages in the cylinder block and then passes through the radiator to dump heat into the air passing through it. The customary 50-50 concentration of coolant and water has a boiling point well above 212F. Cars have pressurized cooling systems—as high as 16psi—so the boiling point is even higher, as high as 265F. That same 50-50 concentration also won’t freeze until -34F, providing low-temperature protection.

The water pump has two functions: the first is to pump coolant around the cooling system, but the other is to keep that coolant on board. A seal surrounds the shaft that’s spun by the fan belt, and coolant can seep around it. Surprise, it’s more likely to leak when cold, and there’s no pressure to keep the seal pressed against the shaft. There’s a thermostat, often nearby the water pump, that short-circuits coolant to the radiator, which helps the engine warm up to normal operating temperature more rapidly.

The radiator is what does the heavy lifting in the cooling system. Hot coolant is pumped through fat rubber hoses into the end or top tank, where it flows through small tubes to the other end or bottom. The tubes are covered in fins, which heat up the air flowing through the radiator. A fan, powered by the belt that drives the water pump, forces air through the radiator. When the vehicle is moving, air flows through on its own, which is why many cars use electric fans that only run when the coolant is too hot, saving the energy belt-driven fan would consume. If the vehicle has an automatic transmission there will be a transmission cooler, a loop of metal tubing running through one radiator tank. More hoses also connect the engine to the heater core, a small radiator mounted under the dash to heat the car’s interior.

The radiator cap has two functions: the first is to keep the system pressurized when the engine is hot. As the coolant heats up, it expands, and a small amount will be vented. The cap routes this through a hose to the overflow tank instead of dumping it on the pavement. When the engine cools, a one-way valve in the cap allows coolant from the tank back into the radiator, keeping the tank 100% full for the best cooling. A bad cap can allow coolant to vent at too low a pressure, allowing the coolant to boil at too low a temperature, or not allow it to return when the engine is cold, keeping the system chronically underfilled. Vehicles that tow a trailer may need an extra transmission cooler.

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Guides & Articles
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...
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Radiators Reviews
Average rating:54.8 - 10 reviews
2009 Chevy Cobalt
| Posted by | (Hobbs, NM)

The radiator looks great has a solid feel way better than factory. Install was fairly simple, there's a ton of videos that do a step by step process.

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