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Quick Specs


This compact separate module is designed to allow for isolated dimming for all AutoMeter gauges utilizing LED lighting technology separate from your vehicle's OEM dash. Supports up to 6 instruments.
Feature Points
  • Includes 4ft. Wiring harness.
  • 0.250 in. Control Shaft, knob not included.
  • Black Composite Case: Dimensions - 2.380 in. x 1.250 in. x 0.750 in. (1.375 in. from bottom of case to tip of control shaft)
  • Utilizes two mounting holes (0.187 in.) located 2 in. on center.
California Residents: Prop 65 WARNING prop65 Cancer, Birth Defects and Reproductive Harm


Rated 2 out of 5 by from Dimming Control Module Bought auto meter 4th gen Ram factory gauges (pyrometer, trans temp, and boost) and the dimmer module. I hooked up the dimmer module to the trucks dimmer switch and the pyrometer gauge and trans temp gauge dim when you dim the dash lights; however the boost gauge doesn’t. The boost gauge can only be dimmed by the dimmer module directly.
Date published: 2019-11-20
Rated 5 out of 5 by from Works as intended. Fitted this dimmer controller as part of a stand alone circuit. Gauge lighting independent from dash lighting, with its own switch. This dimmer controller works very well with good adjustment values in that setup.
Date published: 2021-11-24
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When using the violet lead hooked to the vehicle’s original rheostat, does turning the vehicle’s dimmer cause the brightness of your gauges/dash lights to change through the module, or do you have to turn the knob on the module as well?

Asked by: 1962GMCguy
@ 1962GMCguy...I’m not absolutely certain but you asked a good question and since no one else replied, I will try. Most cars use a rheostat or variable potentiometer rotary switch to adjust the brightness level of conventional incandescent (filament bulb) type lighting. It dims the light by reducing the available power to the gauge bulb. By connecting the violet voltage input wire of the 9114 LED dimmer module to the output of the conventional rheostat dimmer, it should reduce the LED supply voltage and cause the LED’s to dim.  By turning down either one of the dimmer types should cause the gauge lights to dim.  Seems logical. Hopefully someone will chime in with the correct answer.  And the beat goes on....
Answered by: AnalogDan
Date published: 2019-01-19

Can this be used to dim regular incandescent gauges? I need something to dim 6 of your gauges in a custom set. Or what would you recommend ? My headlight switch has no provisions for this?

Asked by: 1924 T-Bucket
Thank you for your question. Yes, this dimmer will work with incandescent lit gauges. You can certainly use this for your application.
Answered by: Zach from AutoMeter
Date published: 2019-01-05

Can this be used for gauges and switches in a boat?

Asked by: Starky62
Answered by: styles
Date published: 2018-12-05

Would this switch be ok for an inline 24 volt 54 amp max draw switch?

Asked by: JRMize
The 18 AWG conductors and dimming circuit components used with the AutoMeter 9114 Module would quickly turn into a smoldering mess if subjected to a 24 VDC @ 54 A load. You might be able to find a heavy duty dimmer control at an industrial electrical vendor like GE or Waytec. Good luck. 
Answered by: AnalogDan
Date published: 2018-11-18

will this work with your 6345 pyrometer?

Asked by: JOE SHMOE
Hi Joe, thank you for the question. While not required, our 9114 Dimming Module is compatible with the digital gauges.
Answered by: Matt from AutoMeter
Date published: 2018-12-05

Is this item manufactured in China?

Asked by: DB50

will this work in a classic instrumint guag cluster in a 1958 chevy apache pickup

Asked by: happy jack
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