| Electronic control unit | |
| The system you use to remove excess heat from an engine transfer it to the atmosphere. Includes the radiator, cooling fan, hoses, water pump, thermostat and engine coolant passages. | |
| All of the components that generate power and transfer it to the vehicles wheels. | |
| The sprocket on the camshaft that is turned up by a chain or belt from the crankshaft. The camshaft sprocket has twice as many teeth as the cam shaft sprocket. |