When your engine is running, thousands of explosions are taking place in the cylinders every minute. Engine blocks were made from cast iron, but in attempts to drop weight and cut fuel consumption, most are now made from aluminum. Metals are excellent heat conductors, storing it most efficiently - even to the melting point! Were it not for your Saturn SL Radiator, your engine would soon seize up and turn into a useless mass of metal parts and rubber components.

A radiator seems like a delicate device, with thin walls and narrow pipes that run through it. It seems a wonder that the thing can do the job for which it was designed at all, but it does - and a good thing, too! Unchecked, those engine temperatures would become hot enough to melt led.

Because of the mixtures of water and propylene glycol circulated through passages in the engine block (known as "water jackets"), this temperature is kept to a manageable 270° Fahrenheit. (The propylene glycol and the sealed system prevent it from boiling over.) A radiator is basically a heat exchanger - while in the engine, water from the radiator exchanges its cool temperature for the engine heat, then carries it back to the radiator, where it literally "radiates" this heat into the open air, exchanging that engine heat for cooler, external air. Eventually, radiators in the best cars will wear out. When that happens to you, come to us for the lowest price on a Saturn SL Radiator.Bring us the best deal you can find, and if we don't already offer a better deal, we'll create one right there on the spot - meeting or beating any online competitor's price!