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The Engine is the central component of your vehicle that burns the air-fuel mixture and generates the necessary power to move the automobile while driving. It functions on a four-stroke system: intake, compression, power and exhaust strokes. These four strokes comprise a single engine cycle. The number of cylinders in the engine depends on the engine configuration. Each cylinder has a piston and openings for intake and exhaust valves, fuel injector and spark plug. The piston is powered by the crankshaft through a connecting rod. The intake and exhaust valves are driven by the camshaft. The camshaft and crankshaft are synchronized by a timing belt to open and close the valves at the right time. The spark plug, which is controlled by the ignition system, generates the spark at the right time to ignite the air-fuel mixture.

When the engine is running, during the intake stroke, the intake valve is opened to let the air pass into the combustion chamber while the fuel injector sprays fuel inside the cylinder. The piston slides downwards and generates the necessary vacuum to take in the air-fuel mixture. During the compression stroke, the piston is pushed upward to compress the air-fuel mixture for combustion while both the intake and exhaust valves are closed. During the power stroke, the spark plug produces the spark to ignite the compressed air-fuel mixture while the intake and exhaust valves still remain closed. The burnt air-fuel mixture explodes, pushing the piston downward. During the exhaust stroke, the exhaust valve is opened and the piston is pushed upward. This upward movement causes the byproducts of the combustion process to be expelled via the exhaust valve.

Common causes of engine failure include improper lubrication and overheating. After years of usage, the engine's efficiency gradually decreases. If any of your engine components fail, you should replace them at the earliest before it leads to a complete engine break-down. At Buy Auto Parts we stock a wide variety of engines for every car make and model.

We have genuine OEM replacements and premium aftermarket parts. All our car parts are thoroughly tested and come with a warranty. To view the parts that fit your vehicle, select the right year, make and model of your car on our online catalog. At Buy Auto Parts you will find high-quality engines at unbeatable prices, and free shipping. If you have any questions about our car parts, call our toll-free support line 1-888-907-7225 or email us at [email protected].