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Quick Specs

  • Size:2-1/16" (52.4mm)
  • Type:Mechanical
  • Range:0-35 PSI
  • Lighting:Incandescent
  • Instructions: Download PDF


Mechanical boost gauges have become the staple in boost pressure monitoring for all types of engines, gasoline, diesel, or otherwise. Ultra-precise bourdon tube meter movement ensures accuracy and durability not seen anywhere else in the industry. A simple 1/8” NPT pressure connection requires no electrical hookup for operation. Includes 1/8” NPT fittings and nylon line kit.
Feature Points
  • Traditional incandescent lighting illuminates around the perimeter of the dial
  • 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
  • Mechanical movements provide accuracy and durability even in the harshest environments
  • Gauge kit includes 1/8” nylon line, 1/8” NPT compression fittings, 1/4” NPT adapter, bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation
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
  • 2230
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Does this gauge come with the tubing.. and fittings?

Asked by: tdidiesel
Thank you for your question. 4304 includes 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, and 10 ft. nylon tubing.
Answered by: Natalia from AutoMeter
Date published: 2021-03-01

Can I use this gauge with a 6-71 blower

Asked by: Anonymous
Hi, This 4304 will work with any blower that does not exceed 35 psi. Thanks, Jim
Answered by: Jim from AutoMeter
Date published: 2020-05-15

What color lighting would best match OEM gauges on an 03 GM Duramax?

Asked by: jduche
Thank you for your question. I would recommend using our factory match gauges since these are the closest thing to your OEM dash lighting. P/N: 8304 would be similar to this gauge. If you are wanting to keep this gauge I would recommend using either our AMBER LED or WHITE LED.
Answered by: Steve from AutoMeter
Date published: 2019-12-03

Hello, What else I need for to install this gauge?  Thanks

Asked by: Salomon123
Thank you for your question. This gauge will include everything you should need for installation.
Answered by: Zach from AutoMeter
Date published: 2019-01-11
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