Vehicle parts

vehicle safety device designed to secure the occupant of a vehicle against harmful movement that may result during a collision or a sudden stop

thumb|upright=1.35|The driver and passenger front airbag modules, after having been deployed, in a Peugeot 306

thumb|upright=1.1|Railroad car Train wheel|wheels affixed to a straight axle, limiting them to rotate in unison. This is called a wheelset. thumb|upright=1.1|A Denney axle An axle or axletree is a central shaft for a rotating wheel or gear. On wheeled vehicles, the axle may be fixed to the wheels, rotating with them, or fixed to the vehicle, with the wheels rotating around the axle. In the former case, bearings or bushings are provided at the mounting points where the axle is supported. In the latter case, a bearing or bushing sits inside a central hole in the wheel to allow the wheel or gear

thumb|An animation of an Speedometer#Electronic|electronic [[Aston Martin speedometer's self-test routine, showing how an analogue speedometer hand may indicate the vehicle's speed]] thumb|A Ford Motor Company|Ford speedometer, showing both mph (outer) and km/h (inner), as well as an [[odometer in miles]] thumb|A digital, LCD speedometer in a [[Honda Insight]]

thumb|right|An electronic odometer (below the speedometer) with digital display showing An odometer or odograph is an instrument used for measuring the distance traveled by a vehicle, such as a bicycle or car. The device may be electronic, mechanical, or a combination of the two (electromechanical). The noun derives from ancient Greek , hodómetron, from , hodós ('path' or 'gateway') and , métron ('measure'). Early forms of the odometer existed in the ancient Greco-Roman world as well as in ancient China. In countries using Imperial units or US customary units it is sometimes called a mileomet

thumb|300px|A tachometer that can indicate up to 7000 revolutions per minute|RPM (left)

thumb|right|Water-air convective cooling radiator, made from aluminium, from a 21st-century car A radiator is a heat exchanger used to transfer thermal energy from one medium to another for the purpose of cooling and heating. The majority of radiators are constructed to function in cars, buildings, and electronics.

motor used to start an internal combustion engine

device on vehicle

mirror in vehicles that allows the driver to see rearwards

thumb|right|Silencer (silver) and exhaust pipe on a [[Ducati motorcycle]] thumb|right|A silencer cut open to show the insulation, chambers and piping inside the shell

sound-making device equipped on vehicles

filter designed to remove contaminants from oil

mechanical component for transmitting torque and rotation

lever for shifting gears manually

radially movable machine element that is connected to a shaft, axle or journal

fuel measurement

main supporting structure of a motor vehicle

valve for controlling air in automobile and bicycle tires featuring an easily removable valve core

clutch using viscous fluid to transfer torque

auxiliary seat in a vehicle

control device that converts non-hydraulic pressure into hydraulic pressure, and sometimes converted back via a slave cylinder

fastener, specifically a nut, used to secure a wheel on a vehicle

retroreflector intended to be used in traffic in dark

a switch in the control system of a vehicle that activates the main electrical systems and/or the engine

light that indicates malfunction of a system

flexible sleeve on vehicle to protect moving part

type of indicator light in automobiles

atom-based relative location determining system