6 Gauge Cluster Kit Vintage Black Dial GPS Speedometer & Tachometer

In this review we look at the RaceTech Classic 1 Series 6 Gauge Set and why it is a strong choice for enthusiasts rebuilding or upgrading a car instrument cluster. The bottom line: this kit combines a GPS-based 0-140 MPH speedometer and an 0-8000 RPM tachometer with four auxiliary gauges in a matching vintage black-dial style, making it ideal for those who want accurate, modern inputs with a classic look. It installs on 12 volt negative ground systems and includes sensors and harnesses so most of the interface work is already handled.

Key Features

• GPS Speedometer: The electrical speedometer uses a GPS sensor and converter for precise 0-140 MPH readings and an odometer without needing a mechanical cable.
• Tachometer flexibility: The 85mm tachometer reads to 8000 RPM and accepts ECU or coil input for compatibility with 1 to 9 cylinder gas engines.
• Complete sensor set: The kit ships with fuel sender, oil pressure and water temp sensors plus adapters, reducing the extra parts you must source.
• Vintage styling: Black faceplates, white needles, SUS304 stainless bezels and convex glass lenses give a classic instrument look that suits restorations and custom builds.
• 4-color backlight: Each gauge includes red, green and blue bulb covers so you can personalize the instrument cluster lighting to match interior trim.

Who It's For

This kit is aimed at classic car restorers, custom builders and drivers who want the look of a vintage cluster but need modern inputs like GPS speed and ECU-driven tachometer. It is particularly useful when replacing mismatched gauges because the set is designed to fit together visually and includes harnesses and sensors to simplify installation.

It is not the best choice for vehicles with non-standard electrical systems, diesel engines without appropriate tachometer signals, or projects that require CAN-bus native integration; those users should look for gauges specifically built for those systems.

Pros & Cons

Pros

• All six gauges share a cohesive vintage design with stainless bezels and convex glass for an authentic look.
• GPS speedometer removes dependency on vehicle speed sensors or mechanical cables, offering straightforward accuracy.
• Comes with a broad set of sensors, adapters and harnesses so the kit is largely ready to install out of the box.
• Selectable red, green and blue lighting covers let you match interior lighting without swapping bulbs.

Cons

• Requires a 12 volt negative ground electrical system and may need adaptation for other setups.
• Tachometer needs a compatible ECU or coil signal and signal filters are included, but complex engine electronics can require extra tuning.

Specifications

Speedometer range	0 - 140 MPH with odometer
Tachometer range	0 - 8000 RPM (fits 1 to 9 cylinder engines)
Auxiliary gauges	Fuel (240-33 ohm), Oil Pressure 0-100 PSI, Water Temp 100-250 F, Voltmeter 10-16 V
Gauge sizes	Speedometer & Tachometer 85mm (3-3/8in); others 52mm (2-1/16in)
Construction	Swiss stepper motor, convex glass lens, SUS304 stainless steel bezel
Included accessories	Wiring harnesses, GPS sensor & converter, sensors, signal filters, bulb covers, mounting hardware

Our Verdict

The RaceTech Classic 1 Series 6 Gauge Set is a practical value for anyone restoring or customizing a car who wants vintage instrument styling with modern measurement accuracy. It bundles the key sensors and harnesses, offers flexible lighting and reliable Swiss stepper movement, making it a convenient one-stop upgrade for compatible 12 volt negative ground vehicles.

Frequently Asked Questions

Does the speedometer need a mechanical drive?
The speedometer is GPS-driven and uses the supplied GPS sensor and converter, so no mechanical cable is required.

Will the tachometer work with my engine?
The tachometer accepts ECU or coil input and fits 1 to 9 cylinder gas engines; signal filters are supplied for cleaner readings if needed.

Are mounting parts and bulbs included?
Yes, the kit includes mounting hardware, six bulbs and red, green and blue bulb covers for each gauge.