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Quick Specs

  • Size:2-1/16" (52.4mm)
  • Type:Mechanical
  • Range:30 IN HG/30 PSI
  • Lighting:LED
  • Instructions: Download PDF


The standard in the industry, AutoMeter’s Mechanical Boost/Vac Gauges have found their way into more builds than any other. Using a patented, high precision bourdon tube meter movement, there isn’t another gauge on the market that can lay claim to the levels of accuracy or durability you’ll find here. A simple 1/8” NPT pressure connection requires no electrical hookup for operation. Includes 1/8” NPT fittings and nylon line kit.
Feature Points
  • Modern blue LED through-the-dial lighting provides clear visibility during nighttime use
  • AutoMeter’s race proven mechanical instruments provide trusted accuracy while being simple to install
  • No electrical system required for gauge operation - compatible with every street or race vehicle
  • Gauge kit includes 1/8” nylon line, T-Fitting, vacuum fitting, compression fittings, mounting hardware, and detailed instructions for installation
  • Mechanical movements provide accuracy and durability even in the harshest environments
Ships With
  • 1/8" NPT Male to 1/8" compression fitting, 1/8" NPT Female to 1/8" compression fitting, 1/8" NPT to 1/4" NPT bushing, T - Fitting
  • 2230
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Does this come with the wiring to power the LED lighting? If not, what is the part number needed?

Asked by: boost124abarth
Thank you for your question. The 6103 does not come with wiring for the lighting. There is a ¼” spade terminal for lighting power and ground. You would need to provide this. We would usually recommend 20-22 gauge wire
Answered by: Sarah from AutoMeter
Date published: 2021-10-13

Is the LED light dimmable (can it be hooked into the dim circuit for the lights in the dash) or does it need to be hooked up to a constant 12v source?

Asked by: Goatus
Hello! The LED in Model #6103 is adjustable/dimmable by reducing the voltage to the light, most often done with the vehicle's dimming. To keep the AutoMeter gauges independent from the factory gauges, you can also use the Dimming Control Module (Model #9114).
Answered by: Natalia from AutoMeter
Date published: 2020-10-27

How to setting vacum/boost cobalt mechanic  Set to zero 

Asked by: Guan
Thank you so much for contacting us. There is no user configurable settings on this gauge. These can only be adjusted at the AutoMeter factory. Hope this helps!
Answered by: Joseph At AutoMeter
Date published: 2018-08-03

one site said it wouldn't fit a 300zx tt 1991. It should right? should fit any turbo car.

Asked by: Anonymous
Thank you so much for contacting us. I can't see any reason why this wouldn't work perfectly on your 300ZX. Our gauges are designed to be universal, so they'll work, by and large, on just about anything with an engine. This gauge would simply be plumbed in to any post-throttle vacuum source on the engine. Hope this helps!
Answered by: Joseph At AutoMeter
Date published: 2018-07-24

hi does this gauge come with a black bezel??? cheers

Asked by: glenisanutter
Hi Glen, thank you so much for contacting us. While this gauge is not available off the shelf with a black bezel, we could certainly do a special order for you. Give our sales team a call at 866.248.6356 or 815.895.8141 and we can help to get it figured out for you. Hope this helps!
Answered by: Joseph Mills
Date published: 2018-03-26
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