Parts of a Car Engine

Engine Block

The engine block is the main structural component of the engine. It houses the cylinders, crankshaft, camshaft, and other critical components. The engine block is typically made of cast iron or aluminum.

Cylinder Head

The cylinder head is located at the top of the engine block and seals the combustion chambers. It contains the valves, spark plugs, and injectors. The cylinder head is typically made of aluminum or cast iron.

Pistons

The pistons are located inside the cylinders and move up and down to compress the air-fuel mixture and create power. The pistons are typically made of aluminum or steel.

Crankshaft

The crankshaft is located at the bottom of the engine block and converts the up-and-down motion of the pistons into rotary motion. The crankshaft is typically made of forged steel.

Camshaft

The camshaft is located at the top of the engine block and controls the opening and closing of the valves. The camshaft is typically made of cast iron or steel.

Valves

The valves are located in the cylinder head and control the flow of air and fuel into and out of the cylinders. The valves are typically made of steel or titanium.

Spark Plugs

The spark plugs are located in the cylinder head and create the spark that ignites the air-fuel mixture. The spark plugs are typically made of ceramic or metal.

Injectors

The injectors are located in the cylinder head and spray the air-fuel mixture into the cylinders. The injectors are typically made of metal or plastic.

Oil Pump

The oil pump is located at the bottom of the engine block and circulates oil throughout the engine to lubricate the moving parts. The oil pump is typically made of cast iron or aluminum.

Water Pump

The water pump is located at the front of the engine and circulates coolant throughout the engine to keep it cool. The water pump is typically made of cast iron or aluminum.

Alternator

The alternator is located at the front of the engine and generates electricity to power the electrical components of the vehicle. The alternator is typically made of cast iron or aluminum.

Starter Motor

The starter motor is located at the front of the engine and cranks the engine to start it. The starter motor is typically made of cast iron or aluminum.