OE Quality
60-Day Returns

Standard Ignition HLS-1620 Headlight Switch
Headlight Switch for Ram 3500
The Standard Ignition HLS-1620 headlight switch is a direct-fit replacement for select Ram 3500 trucks. Built to restore headlight operation after switch failure, it uses copper alloy conductors for strong electrical conductivity and low resistive loss.
- Direct, snap-fit attachment for OE-style replacement
- 12-volt electrically operated headlight switch
- 1 rectangular female connector with 6 male pin terminals
- Black and silver finish with black knob color
- OE-spec construction for proper fit, form, and function
- Plastic finish and robust materials for service use
Detailed Product Overview
Standard Ignition HLS-1620 is a replacement headlight switch engineered for 2011-2012 Ram 3500 applications. It is built to match OE specifications so the switch mounts and connects like the original unit, helping restore reliable lighting control in the cab. The HLS-1620 is a practical choice when the original switch has worn contacts, intermittent operation, or physical damage. This part cross-references Spectra Premium S10487 for the same application.
Common Problems This Part Can Address
- Headlights that do not turn on or off consistently
- Intermittent lighting control from a worn internal switch
- Damaged or broken OE headlight switch housing
- Electrical resistance caused by degraded switch contacts
- Loss of proper dash-mounted headlight control in a Ram 3500
Installation Notes and Tips
Fits 2011-2012 Ram 3500, N/A. Verify connector shape, terminal count, and switch style against the original part before installation. The direct, snap-fit design supports OE-style replacement, and the 12-volt electrical layout matches the original truck application. Standard Ignition HLS-1620 is also referenced by part numbers 1S11724, 4602920AA, HL7645, and SW8922.
Quality Assurance
Standard Ignition builds this headlight switch to OE specification using copper alloy conductors and service-grade materials to support dependable electrical performance and correct fitment for Ram 3500 trucks.
| Brand | Standard Ignition |
|---|---|
| Part Number | HLS-1620 |
| Attachment Method | Direct, snap fit |
| Color | Black, silver |
| Connector Gender | Female |
| Connector Quantity | 1 |
| Connector Shape | Rectangular |
| Finish | Plastic |
| Knob Color | Black |
| Terminal Gender | Male |
| Terminal Quantity | 6 |
| Terminal Type | Pin |
| Voltage | 12 |
This part fits 2 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2012 | Ram | 3500 | N/A | |
| 2011 | Ram | 3500 | N/A |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.