Valve in the inlet port that allows air or air/fuel mixture into an engine.

Type of diesel fuel injection pump with the pump elements in line.

The inside rings of ball or roller bearings.

The separate sealed air tube on a tyre that is required with certain types of tyre and wheel rim.

Metal panel structure under the bonnet forming part of the wing.

Power or data that goes into a mechanical unit or electronic control module.

A device that allows you to put information into the computer. Egg, keyboard, mouse.

Shaft that takes drive from the engine into the gearbox.

A steel insert fitted in aluminium and some iron cylinder heads to form a durable seating for the inlet and exhaust valves.

A feature of air brakes designed to give an initial quick application to make up for the time it takes for air pressure change.