Standard Ignition HLS-1242 Headlight Switch

Headlight Switch for Ford Super Duty

The Standard Ignition HLS-1242 is a direct replacement headlight switch built for 12-volt electrical systems and demanding daily service. It uses copper alloy conductors for strong electrical transfer and is 100% tested for mechanical and electrical switching performance.

Compatible with 2002 Ford F-250 Super Duty and 2002, 2004 Ford F-350 Super Duty applications with fog lights and auto headlights, this switch is a practical choice when the original headlight control becomes intermittent or fails to operate correctly. The HLS-1242 is also cross-referenced to Spectra Premium S10109 for the same application.

Key Features

• Direct, snap-fit attachment method for OE-style replacement
• Headlight switch function with 5 switch positions
• 12-volt electrical design
• Black plastic finish
• 2 rectangular female connectors
• 13 male blade terminals
• Copper alloy conductors for low-resistance electrical flow
• Individually tested for switching performance

Detailed Description

Standard Ignition HLS-1242 is engineered as a replacement headlight switch for Ford Super Duty trucks that use fog lights and auto headlights. The rectangular dual-connector layout, blade terminals, and direct snap-fit attachment support a straightforward OE-style installation in the dash switch location. For buyers searching for a 2002 Ford F-250 Super Duty headlight switch or a 2004 Ford F-350 Super Duty headlight switch, this part number provides a fitment-specific solution. The HLS-1242 also appears in interchange listings with 1S3671, 2C3Z11654DAA, 53-22669, HL7267, SAC1757, SW3956, and SW5689.

Common Issues This Part Can Address

• Headlights do not turn on or off consistently
• Intermittent switch response when rotating through positions
• Faulty operation of fog light and auto headlight functions
• Worn internal contacts causing electrical switching problems
• Damaged or loose switch connector terminals

Installation Notes and Tips

Verify connector shape, terminal count, and switch position count before installation. Confirm the vehicle is equipped with fog lights and auto headlights, since the listed fitment is specific to those configurations. Inspect the harness connectors for heat damage or corrosion before installing the new switch, and compare the original dash opening to the square-shape application noted for the 2004 Ford F-350 Super Duty.

Quality Assurance

Standard Ignition builds this switch with durable materials and copper alloy conductors, then tests each unit for mechanical and electrical function before release. That process supports consistent operation in service applications where reliable headlight control matters.