For example, its intake valves regulate air and fuel. Its pistons, on the other hand, pressurize the mix, while its spark plugs combust it and its exhaust valves regulate the fumes that result. There are also valve covers to protect its valves, a camshaft to manage the valves' activities, and a cylinder head to help prevent gases and motor oil escaping. There's even a crankshaft, which turns engine power into rotary motion -- movement that drive shafts and the transmission use to move the wheels and spin the tires. Last, but not least, there's an oil pan or oil sump, which stores the engine oil used to lubricate it all.

Many other parts ensure everything in the engine fits together and works properly -- things like sprockets, rings, bearings, and gears. When any of them stop working, though, engine problems almost always follow. Signs of them include:

A lit Check Engine light on the dashboard
Increased exhaust emissions
Worsening fuel economy
Acceleration issues
Longer warm-up times
Rough idling
Stalling or being unable to start the car at all

Seeing any? Run an engine inspection to get a better idea of what's happening. And if you're looking to buy engine parts for your car online, our auto parts store should have what you need.

Keep Your Car Running Right -- Install Genuine INFINITI G37 Engine Parts

We sell only genuine OEM engine parts -- those made by INFINITI and guaranteed to work with your G37 model. Take advantage of shipping directly to your door -- order online today!