Standard Ignition DS-611 Headlight Switch

Headlight Switch for Ford and Lincoln

Restore reliable headlight control with Standard Ignition DS-611. This 12-volt headlight switch is built with copper alloy conductors for strong electrical conductivity and low resistive loss, and each unit is tested for mechanical and electrical switching performance.

Compatible with select Ford, Mercury, and Lincoln applications, including 1993-1994 Lincoln Town Car, 1992 Ford Crown Victoria, and 1990-1991 Mercury Grand Marquis. The Standard Ignition DS-611 is a direct, snap-fit replacement for vehicles using a rectangular 2-connector layout.

Key Features

• Headlight switch function for 12-volt systems
• Direct, snap-fit attachment method
• Female 2-connector design with rectangular shape
• 9 blade male terminals for secure electrical connection
• Copper alloy conductors for efficient current flow
• 100% tested for mechanical and electrical switching performance
• Cross-reference part numbers include 1S4549 and HL6807

Detailed Description

Standard Ignition DS-611 is a replacement headlight switch engineered for service work where dependable switching and stable electrical contact matter. Its robust construction and copper alloy conductor design support consistent operation in vehicles that rely on a mechanical cluster or dimmer-related headlight control setup. This part number is commonly searched as DS-611 headlight switch for Lincoln Town Car, Ford Crown Victoria, and Mercury Grand Marquis applications.

Fits 1993-1994 Lincoln Town Car, N/A, w/ Mechanical Cluster; w/ Auto Headlight Control. Fits 1992 Ford Crown Victoria, N/A, To 8/91. Fits 1991-1992 Lincoln Town Car, N/A, w/ Mechanical Cluster; w/ Dimmer. Fits 1990-1991 Ford LTD Crown Victoria, N/A. Fits 1990-1991 Mercury Colony Park, N/A. Fits 1990-1991 Mercury Grand Marquis, N/A.

What It Helps Fix

• Headlights that do not turn on or off consistently
• Intermittent headlight operation from worn internal contacts
• Electrical resistance caused by aging switch components
• Switching issues related to mechanical cluster or dimmer control
• Loose or unreliable headlight switch connection at the dash

Installation Notes and Tips

Verify connector shape, terminal count, and vehicle configuration before installation. This DS-611 uses a direct, snap-fit attachment with a female rectangular connector and blade terminals, so matching the original switch layout is important. Confirm the vehicle’s year and notes, especially on Lincoln Town Car and Ford Crown Victoria applications, before replacing the original unit.

Quality Assurance

Standard Ignition backs this replacement switch with a design focused on technician needs, using durable materials and validated switching performance. Each DS-611 is tested for both mechanical action and electrical function before release.