HomeElectrical, Lighting and Body > SwitchesStandard Ignition DS-990 Headlight Dimmer Switch
Part #: DS-990

Standard Ignition DS-990 Headlight Dimmer Switch

⚙️ 34 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Jeep, Wrangler and TJ
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Reliable Headlight Dimmer Switch for Jeep TJ and Wrangler

The Standard Ignition DS-990 headlight dimmer switch is designed specifically for Jeep TJ and Wrangler models. This new combination switch offers essential lighting and signaling functions to maintain safe vehicle operation.

  • Bolt-on attachment method for secure installation
  • Female rectangular connector with one cavity
  • Includes fog light operator and turn signal control
  • Features latching high beam and momentary high beam flasher
  • Indicator markings clearly displayed for ease of use
  • Operates on 12-volt electrical systems
  • Equipped with 18 male blade terminals for reliable connectivity

Product Details and Functionality

The DS-990 headlight dimmer switch from Standard Ignition is a combination switch that integrates multiple lighting controls into one unit. It includes main light operation, turn signal control, fog light operator, and both latching and momentary high beam functions. The switch is designed with a bolt-on attachment method and features a single female rectangular connector with 18 male blade terminals, ensuring a secure and stable electrical connection. Indicator markings are included on the switch for intuitive operation, making it easier to control your Jeep TJ or Wrangler's lighting system.

Compatible Vehicles and Applications

This headlight dimmer switch is compatible with Jeep TJ and Wrangler models, providing a direct replacement for factory switches. It is ideal for restoring or upgrading the lighting controls on these vehicles, ensuring proper function of headlights, turn signals, and fog lights.

  • Resolves issues with non-functioning or intermittent headlights
  • Restores turn signal operation and indicator visibility
  • Fixes problems with high beam latching and flashing
  • Enables fog light control for improved visibility in adverse conditions
  • Replaces worn or damaged combination switches

Installation Notes and Tips

Installation of the Standard Ignition DS-990 headlight dimmer switch requires basic automotive electrical knowledge. The bolt-on design allows for straightforward mounting, and the single female rectangular connector simplifies wiring connections. Ensure the vehicle's battery is disconnected before installation to prevent electrical shorts. Verify connector orientation and terminal alignment to avoid damage. Consult the Jeep TJ or Wrangler service manual for detailed removal and installation procedures.

Quality Assurance and Warranty

This headlight dimmer switch is a new, Standard Ignition part manufactured to meet or exceed OEM specifications. It is built with durable materials and tested for reliable performance in Jeep TJ and Wrangler vehicles. Standard Ignition typically offers a limited warranty on their electrical components; please refer to the product documentation for specific warranty details.

BrandStandard Ignition
Part NumberDS-990
Attachment MethodBolt On
Connector GenderFemale
Connector ShapeRectangular
Cruise Control Cancel IncludedNo
Cruise Control On/Off Operator IncNo
Cruise Control Resume IncludedNo
Cruise Control Set IncludedNo
Cruise Control Speed Adjustment InNo
DisplayedYes
Fog Light Operator IncludedYes
FunctionsCombination Switch
Indicator Markings IncludedYes
Latching High Beam Operator IncludYes
Main Light Operator IncludedYes
Momentary High Beam Flasher IncludYes
New or RemanNew
Number Of Connector Cavities1
Rear Window Washer Spray IncludedNo
Rear Window Wiper Delay Control InNo
Rear Window Wiper Speed Setting InNo
Running Light Operator IncludedNo
Terminal GenderMale
Terminal TypeBlade
Turn Signal Control IncludedYes
Turn Signal/Directional IndicatorYes
Voltage12
Windshield Washer Spray IncludedNo
Windshield Wiper Delay Setting IncNo
Windshield Wiper Speed Setting IncNo

This part fits 34 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006JeepWranglerN/Aw/ Front Fog Lights
2006JeepWrangler4.0LL6N/ACompatible with vehicles equipped with fog lights.
2006JeepWrangler2.4LL4N/ACompatible with vehicles equipped with fog lights.
2006JeepWranglerN/ACompatible with vehicles equipped with fog lights.
2006JeepWrangler2.4LL4N/A
2006JeepWrangler4.0LL6N/A
2005JeepWrangler2.4LL4N/Aw/ Fog Lights; Headlight, Dimmer and Turn Signal Switch
2005JeepWrangler4.0LL6N/Aw/ Fog Lights; Headlight, Dimmer and Turn Signal Switch
2005JeepWrangler2.4LL4N/A
2005JeepWrangler4.0LL6N/A
2004JeepTJN/Aw/ Fog Lights; Combo Switch Assembly
2004JeepTJN/ACompatible with vehicles equipped with fog lights.
2004JeepWranglerN/Aw/ Fog Lights; Combo Switch Assembly
2004JeepWranglerN/A
2004JeepWranglerN/ACompatible with vehicles equipped with fog lights.
2003JeepTJN/ACompatible with vehicles equipped with fog lights.
2003JeepTJN/Aw/ Fog Lights; Combo Switch Assembly
2003JeepWranglerN/A
2003JeepWranglerN/ACompatible with vehicles equipped with fog lights.
2003JeepWranglerN/Aw/ Fog Lights; Combo Switch Assembly
2002JeepTJN/Aw/ Fog Lights; Combo Switch Assembly
2002JeepTJN/ACompatible with vehicles equipped with fog lights.
2002JeepTJN/A
2002JeepWranglerN/ACompatible with vehicles equipped with fog lights.
2002JeepWranglerN/A
2002JeepWranglerN/Aw/ Fog Lights; Combo Switch Assembly
2001JeepTJN/Aw/ Fog Lights; Combo Switch Assembly
2001JeepTJ2.5LL4N/A
2001JeepTJ4.0LL6N/A
2001JeepTJN/ACompatible with vehicles equipped with fog lights.
2001JeepWranglerN/Aw/ Fog Lights; Combo Switch Assembly
2001JeepWrangler2.5LL4N/A
2001JeepWrangler4.0LL6N/A
2001JeepWranglerN/ACompatible with vehicles equipped with fog lights.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1S29492-TSS835016709AA5016709AC53-5872189057128CS606DL6332DL6332SBDS990TS14223SM422SW3153TSS83

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.