Contact APT

Customer Form


Ratio Test

Shipping Tips



The Exclusive Smiths Gauge World Wide Sales & Service Center

GM Gauge Repair
Speedo Repair
Tach Repair
Small Gauge Repair


Typical GM Cluster repair.


    PLEASE NOTE:  We do not work on cars.

Note:  When inquiring about service via email, please include year, make and model. Send photos front and back.

   APT Instruments provides complete speedometer repair and other automotive instrument and gauge repair, service and conversion on all type vehicles from the 1890s to current year.  Includes calibration and warranty.    Foreign or domestic, whether digital, electric, analog or mechanical.  Contact us for your instrument repair needs.

        We service speedometers, odometers, tachometers and small gauges for cars, trucks, busses, agricultural or farm vehicles, boats, exercise equipment, industrial and military equipment, tractor-trailers, recreational vehicles, snowmobiles, etc.

        We specialize in fast turnaround on most late model repairs.  We service most brands of gauges, including VDO, Stewart Warner, Smiths, Motometer, Clark Brothers, Murphy, AC Delco, King Sealy, Nippon Denso, Nippon Seiki, Veglia, French Jaeger, Faria and more.

    One year warranty/unlimited miles on most.

SORRY, NO MOTOR BIKES OR MARINE GAUGE REPAIRS (Call Motospeedo 818-929-5416)   

Call APT Instruments at 952-881-7095 for your speedometer repair and other gauge repair.

For your assistance, we have provided a Troubleshooting Guide and instructions for conducting Ratio Tests.

Remember, before packing your gauges for shipping to APT, see our S&H Instructions and please include our Customer Information Form in the box..

We accept Visa, MasterCard, Discover, American Express, money orders, PayPal and checks.

Home ] GM Gauge Repair ] Speedo Repair ] Tach Repair ] Small Gauge Repair ]

Last modified: October 08, 2013