Standard Ignition HLS1785 Headlight Switch
OE Quality 60-Day Returns
Standard Ignition

Standard Ignition HLS1785 Headlight Switch

Brand Standard Ignition HLS1785
Terminal Quantity 12
Connector Gender Female
Terminal Gender Male
Attachment Method Snap fit
Color/Finish Black, white
Connector Quantity 1
Connector Type Plug in
Finish Plastic
Functions Switch
Terminal Type Pin
Fits Chevrolet and GMC · 20 vehicles

Plug-in design. Snap-fit headlight switch installs cleanly with a single connector.

Pin terminals. Twelve terminals provide a secure electrical connection.

Plastic finish. Black and white housing keeps the switch lightweight and durable.

Cross-references 84526542, HL7810 and HLSB10399 for the same application. See all 4.

$57.56Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $57.56
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Free returns within 60 days if it doesn't fit when fitment is verified.

Headlight Switch for Silverado and Sierra Security Lighting

Standard Ignition HLS1785 is a plug-in headlight switch built for vehicles equipped with security lighting. It uses a 12-terminal layout with a female connector, male pin terminals, and a snap-fit attachment method for a direct electrical replacement.

  • Headlight switch function for lighting control
  • 12 terminals for the specified vehicle interface
  • Female connector with male pin terminals
  • Single plug-in connector design
  • Plastic finish in black and white
  • Snap-fit attachment method

Fitment and Application Details

Compatible with 2020-2023 Chevrolet Silverado 2500 HD, w/ Security Lighting; 2020-2023 Chevrolet Silverado 3500 HD, w/ Security Lighting; 2020-2022 Chevrolet Silverado 1500, w/ Security Lighting; 2022 Chevrolet Silverado 1500 LTD, w/ Security Lighting; 2020-2023 GMC Sierra 2500 HD, w/ Security Lighting; and 2020-2023 GMC Sierra 3500 HD, w/ Security Lighting. This Standard Ignition HLS1785 headlight switch is a direct-fit electrical replacement for Silverado and Sierra trucks listed with security lighting.

For buyers searching by part number, HLS1785 is also referenced in interchange listings for related OE and aftermarket applications. This part cross-references 84526542 and HL7810 for the same application.

What This Switch Helps Address

  • Headlight switch failure causing loss of lighting control
  • Intermittent or inconsistent switch operation
  • Broken or worn electrical connector terminals
  • Dash lighting or switch input issues tied to the headlight control circuit
  • Replacement needs after connector or internal switch wear

Installation Notes and Tips

Verify the vehicle is equipped with security lighting before ordering. Match the connector style, terminal count, and attachment method to the original switch, and confirm the part number HLS1785 against the removed component for proper fitment on Chevrolet Silverado and GMC Sierra models.

Quality Assurance

Standard Ignition is a recognized name in automotive electrical components, and this switch is built to meet the fitment and connector requirements listed for the specified Silverado and Sierra applications.

Related reading

This part fits 20 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2023ChevroletSilverado 2500 HD6.6LV8w/ Security Lighting
2023ChevroletSilverado 3500 HD6.6LV8w/ Security Lighting
2023GMCSierra 2500 HD6.6LV8w/ Security Lighting
2023GMCSierra 3500 HD6.6LV8w/ Security Lighting
2022ChevroletSilverado 1500——w/ Security Lighting
2022ChevroletSilverado 1500 LTD——w/ Security Lighting
2022ChevroletSilverado 2500 HD6.6LV8w/ Security Lighting
2022ChevroletSilverado 3500 HD6.6LV8w/ Security Lighting
2022GMCSierra 2500 HD6.6LV8w/ Security Lighting
2022GMCSierra 3500 HD6.6LV8w/ Security Lighting
2021ChevroletSilverado 1500——w/ Security Lighting
2021ChevroletSilverado 2500 HD6.6LV8w/ Security Lighting
2021ChevroletSilverado 3500 HD6.6LV8w/ Security Lighting
2021GMCSierra 2500 HD6.6LV8w/ Security Lighting
2021GMCSierra 3500 HD6.6LV8w/ Security Lighting
2020ChevroletSilverado 1500——w/ Security Lighting
2020ChevroletSilverado 2500 HD6.6LV8w/ Security Lighting
2020ChevroletSilverado 3500 HD6.6LV8w/ Security Lighting
2020GMCSierra 2500 HD6.6LV8w/ Security Lighting
2020GMCSierra 3500 HD6.6LV8w/ Security Lighting
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
84526542HL7810HLSB10399S10652