1. Piston
   Engine block
2. Oil filter
   Spark plugs

The piston fits in the cylinder. It is attached to a connecting rod and moves up and down within the cylinder

1. Piston
   Engine block
2. Oil filter
   Spark plugs

Cast out of metal and the engine block is home to pistons, cylinders and the crankshaft.

1. Piston
   Engine block
2. Oil filter
   Spark plugs

Essentially, spark plugs are the most important factor in a vehicle starting. They provide the spark that ignites the air-fuel mixture which starts the motor and keeps it running.

1. Piston
   Bearing
2. Spark plug
   Carburetor

Without the correct air fuel mixture, a combustion engine will not run at an optimal level. The carburetor ensures that the mixture is correct.

1. Carburetor
   Bearings
2. Oil pump
   Spark plugs

An oiil pump circulates oil within the engine.

1. Starter otmor
   Fuel filter
2. Carburetor
   Engine block

When you turn the key of your car, the starter motor begins the combustion process by rotating the engine.

1. Starter motor
   Hubcap
2. Tire
   Radiator

This reservoir holds coolant which is used to keep the engine at the correct temperature during operation.

1. Radiator
   Engine block
2. Windscreen wipers
   Hoses

Various hoses are found throughout the engine. They carry liquids like water and oil.

1. Exhaust
   Hoses
2. Fan belt
   Brake pad

This belt, usually made from rubber, connects a number of components of the engine including the cooling fan and alternator.

1. Air filter
   Oil pump
2. Fuel tank
   Exhaust system

This circulates oil within the engine.

1. Alternator
   Engine block
2. Sprocket
   Oil pump

A sprocket is a wheel with a set of teeth. It drives items like the chain or timing belt, among others.

1. Oil filter
   Sump
2. Cylinder head bolts
   Sprocket

Head bolts are sometimes referred to as cylinder head bolts. These secure a cylinder head and gasket to the engine block.

1. Gas pedal
   Piston
2. Spark plug
   Radiator

Simply put, push the gas pedal to go faster!

1. Sun gear
   Timing belt
2. Oil pump
   Fuel filter

The sun gear is the central gear in the planetary gear system in the transmission.

1. Rim
   Tire
2. Sun gear
   Seals and gaskets

There are various seals and gaskets found throughout the engine and transmission system. This ensures that the vital hydraulic fluid does not leak.

1. Valve
   Flywheel
2. Seals and gaskets
   Radiator

Found in manual transmissions, a flywheel does two things. First, it provides tooth gears for the starter motor to engage on, rotating the engine on startup. Second, it is used to push torque from the car's engine to its transmission by use of the clutch.

1. Flywheel
   Clutch pedal
2. Carburetor
   Hoses

This pedal is pressed by the driver which in turn engages the clutch plate and allows for the a new gear to be selected.

1. Radiator
   Sensors
2. Clutch
   Alternator

Found in cars with manual transmissions, a clutch fulfills the same role as a torque converter in an automatic transmission car. Essentially, it keeps the engine turning over when the vehicle comes to a halt.

1. Spark plugs
   Battery
2. Automatic transmission pump
   Suspension

Often considered to be the heart of the transmission system, this pump moves hydraulic fluid through the gearing system to ensure it operates efficiently.

1. Automatic transmission pump
   Shifter
2. Gas pedal
   Self locking nut

The shifter is found on cars with a manual transmission. When the clutch pedal is pushed in, the clutch plate is engaged and a new gear can be selected using the shifter.

1. Clutch cable
   Alternator
2. Fuel pump
   Hood latch

This steel cable connects the clutch linkage in the transmission to the clutch pedal. It is only found on a car with a manual transmission.

1. Crankshaft
   Piston
2. Clutch cable
   Ring gear

The ring gear is the large outer gear in the planetary gear system in the transmission.

1. Torque converter
   Clutch pedal
2. Brake pedal
   Gas pedal

Found in cars with automatic transmissions, a torque converter fufills the same role as a clutch in a manual transmission car. Essentially, it keeps the engine turning over when the vehicle comes to a halt.

1. Thermostat
   Intake manifold
2. Piston
   Engine block

A thermostat ensures that coolant is only pumped from the radiator when necessary. This is generally once the engine has warmed up sufficiently.

1. Fuel tank
   Sump
2. Hi tension leads
   Thermostat

High tension leads connect the sparks plugs to the distributor.

1. Sump
   Hi tension leads
2. Spark plug
   Fuel tank

This is the reservoir where the oil used to lubricate the engine sits when it is not running.

1. Hi tension leads
   Sump
2. Petrol cap
   Turbocharger

Turbochargers help improve performance of an engine by pushing more air into it. This means more fuel also burnt, creating more power.

1. Turbocharger
   Crankshaft
2. Carburetor
   Intercooler

Found in turbocharged engines, an intercooler reduces the temperature of the air compressed by the turbocharger. This makes it denser when it is pushed through the engine, which produces more power.

1. Sun gear
   Exhaust system
2. Distributor
   Oil cap

This makes sure the spark plugs fire in the right order. It is part of the ignition system.

1. Distributor
   Crankshaft
2. Fuel pump
   Oil filter

When fuel burns in the engine, it pushes the pistons which in turn rotate the crankshaft. This causes the vehicle to move.