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Glossary of Automotive Terminology

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Glossary of automotive, recreational vehicle and motorcycle terminology.

Homologation

A technical term that is generally used to signify the granting of approval by an official authority. An example of this would be the sanctioning bodies of racing series requiring automakers to manufacture a specific, minimum number of a car that is driven in the series so that it is accepted as a production vehicle. Read More »

Diversity Antenna

A Diversity Antenna system has two, or more, antenna which are mounted on a vehicle. The system will select which antenna to take the radio or other device, signal (AM, FM, WiFi, satellite, microwaves, mobile phones), from depending on which one is receiving the clearest signal – also known as best Signal to Noise Ration (SNR). Users should experience less ... Read More »

CVT

A continuously variable transmission (CVT) is a type of automatic transmission that varies the distance between a pair of belt or chain-linked pulleys, wheels or cones to smoothly alter its gear ratio without requiring any predefined steps or sudden changes in engine speed. Continuously variable transmissions operate on the theory of pulleys; a large pulley connected to a smaller pulley ... Read More »

Hitch Rating

Weight the hitch can pull defined by class: Class I Hitch Rating: Hitch rated to handle up to 2,000 pounds. Class II Hitch Rating: Hitch rated to handle 2,000 to 3,500 pounds. Class III Hitch Rating: Hitch rated to handle 3,500 to 5,000 pounds. Class IV Hitch Rating: Hitch rated to handle 5,000 to 8,000 pounds. Class V Hitch Rating: ... Read More »

Gross Vehicle Weight Rating (GVWR)

The GVWR is the total allowable weight of a fully equipped vehicle and includes the weight of the driver, passengers, cargo, all fluids, accessories and the tongue weight of the trailer. Read More »

Gross Axle Weight Rating (GAWR)

The GAWR is the maximum weight each axle is designed to carry safely. It includes the entire weight of the vehicle, occupants, cargo, trailer tongue weight and so forth, but now distributed between front and rear axles. Read More »

Starter

The starter is an electric motor that consists of several brushes. These brushes carry electrical current that allows the motor to spin and therefore turns over the engine. Read More »