Even the greatest basketball player is nothing without a dependable team. In the 2007-2008 NBA Playoffs, Kobe Bryant, the monster scoring machine from the LA Lakers, needed more than just a little support from the Spanish power forward Pau Gasol to ensure a memorable Lakers victory against the Denver Nuggets. The same principle is true for most of your car's major components. If the engine needs the engine mount to keep it in place, the radiator needs a radiator support to help keep it functioning at its best at all times.
While a radiator support may not seem important at first glance, a car's cooling system can't run without it. Otherwise, your radiator would bounce around under the hood when you travel. Aside from securing your radiator in place, this metal bracket also attaches your radiator to the side aprons and the upper and lower rails of your engine assembly frame. It keeps the radiator near your engine, which ensures that the coolant is pumped thoroughly in the engine, but far enough to protect it from the extreme heat produced by the engine's operations. Also, by locking down your radiator in place, a radiator core support helps keep the rest of your auto components aligned-particularly your fenders and hood.
No man is an island; likewise, no auto part can function on its own. So get a completely functional engine cooling system and use a replacement radiator support once your stock one gets worn out.