The closest speedometer calibration location is typically at a local DMV office. Speedometer calibration is important to make sure you are driving the speed limit and not exceeding the posted speed limit.

We specialize in speedometer repair, tachometer repairs, speedometer and tachometer restoration, and gauge cluster repair and restoration. That’s what our top notch customer service is all about. Get in Touch

Speedometer Calibration Certificates are accepted in most courts including those in Virginia, Washington DC, Maryland, North Carolina, West Virginia, Delaware, New Jersey, New York and Pennsylvania. We can test your speedometer accuracy "while you wait" right here in …

Shop for the best Speedometer Calibrator for your vehicle, and you can place your order online and pick up for free at your local O'Reilly Auto Parts.

Bob's Speedometer is an Official Authorized Distributer for many gauge and parts manufacturers, such as Westach, Classic Instruments, VDO, Trim Parts and others - we also offer a wide selection of NOS, Restored Antique, Classic, Modern Gauges & Gauge Clusters.

Step 2: Use the calibration gear kit to adjust the rotation of the cable, matching it with the current tire size and gear ratio. Step 3: Drive at a constant speed using a GPS or a roadside speed checker to confirm the speedometer displays the correct reading.

We offer complete mechanical repair, rebuild and calibration of any speedometer, regardless of make or manufacturer including electronic upgrades with digital mileage readout to most round-style speedometers.

Speedometer calibration can be performed in-house or by a service provider. In-house calibration offers the advantage of greater control over the process, as well as cost savings over time for organizations that have the necessary equipment and personnel available.

Send us your speedometer and we’ll rebuild, repair or service it! All you have to do is put your speedometer in a box ( USPS Flat Rate Shipping Works Great ) and send it to the address below. Speedometer and Alternator Service Co.

We can calibrate the speedometer with a transmission gear change or if needed a speedometer ratio adapter. We do not repair electric speedometers but we can get exchange instrument clusters or have yours repaired off site.