Complete Guide to Aftermarket Speedometers

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Complete Guide to Aftermarket Speedometers

Speedometers are critical components that help drivers stay safe on the road by allowing them to monitor their driving speeds for safe operation. If a factory speedometer stops functioning properly or car owners simply want to upgrade the equipment in their vehicles, it is possible to find aftermarket speedometers to restore full functionality. When shopping for new speedometers, shoppers should consider the different types as well as the various features available on some of the top aftermarket parts.


Types of speedometers

Many cars have eddy current or mechanical speedometers installed from the factory. These devices rely on rotating cables attached to gears on the transmissions to determine the speed of vehicles. When car owners want to upgrade to aftermarket speedometers, they often choose speedometer types that work in a different way. The two most common types of speedometers are programmable and GPS, and both types operate differently but provide accurate readings.

Programmable speedometers

Electronic or programmable speedometers are the most common type of aftermarket speedometer. These devices work with speed sensors and receive a certain number of electronic pulses per kilometre to determine speed. Car owners program the speedometers to match the number of pulses sent out by the speed sensors. Once calibrated, these types of speedometers are highly accurate, regardless of vehicle tyre sizes and gear ratios. Additionally, many brands are universal and work with all types of speed sensors.

GPS speedometers

GPS speedometers are simple to install, and most are ready to use right out of the box without calibration or the use of speed sensors. Rather than relying on electronic pulses from speed sensors to determine speed, they use GPS signals from satellites. Many car owners opt to install GPS speedometers because of their accuracy. These devices are not susceptible to the inaccuracies commonly seen in other speedometers caused by variations in tyre and wheel sizes and general wear and tear.


Speedometer features to consider

Aftermarket speedometers include a variety of features that make them unique when compared to other brands. They sometimes differ in the way they display speed, or they might include other information in addition to speed. By considering the various features, car owners can determine the best options for their driving needs. OBD-II connectors, LED displays, and universal connectivity are among the most popular features with consumers.

OBD-II connectors

Some speedometers come with connectors that install directly into vehicles' OBD-II ports. This allows the speedometer to relay diagnostic information about the car's condition as well as speed. Warning lights give drivers visual indicators that allow them to identify issues and make repairs as quickly as possible. Battery voltage, coolant temperature, and engine RPM are common features displayed by these types of speedometers.

LED lights and displays

Speedometers usually have dial displays with hands that move up and down as the speed increases and decreases. Some have LED displays with digital readouts to give drivers numeric displays of their speed. For a custom appearance, some aftermarket speedometers come in a variety of bright LED colours, and some even include heads-up displays that project information onto the windshield so drivers can keep their eyes on the road.

Universal connectivity

Although most OEM speedometers fit certain makes and models of vehicles, aftermarket speedometers often fit a variety of cars. Universal connectivity makes it easy for shoppers to find speedometers for their cars. Some models, such as GPS speedometers, have plug-and-play technology that makes them ready to use right out of the box without programming or complicated installations.


Speedometer parts and accessories

Once shoppers decide on the types of speedometers they want to purchase, they should consider the parts and accessories needed for installation and to ensure compatibility. For example, owners may need to purchase speed sensors to replace damaged sensors or to make the speedometers compatible with specific vehicles. A transmission programmer or speedometer calibrator allows users to adjust new speedometers to ensure accurate speed readings.


How to buy aftermarket speedometers on eBay

Find aftermarket speedometers as well as other car parts and accessories by browsing the extensive inventory on eBay. Enter keywords like "GPS speedometer" or "electronic speedometer" into the search bar found on any eBay page. Refine the results by selecting brand, condition, price range, or more. Carefully review item descriptions and view photos to find the speedometer that is perfect for your vehicle, and be sure to consider

used items or search for local sellers to cut the cost of an aftermarket speedometer.

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