Standard Ignition DS-620 Headlight Switch

Headlight Switch for Ford, Mazda, and Mercury

The Standard Ignition DS-620 is a direct-fit headlight switch built for 12-volt electrical systems. It is engineered with copper alloy conductors for strong electrical flow and low resistance, and each unit is tested for mechanical and electrical switching performance.

Compatible with select Ford Explorer, Ford Ranger, Mazda B2300, Mazda B3000, Mazda B4000, and Mercury Mountaineer applications, the DS-620 supports reliable headlight control in vehicles from the mid-1990s.

Key Features

• Direct, snap-fit attachment method for straightforward replacement
• 12-volt headlight switch design
• Female rectangular connector with 8 male blade terminals
• Black plastic finish
• Copper alloy conductors for improved conductivity and reduced resistive loss
• 100% tested for mechanical and electrical switching performance

Detailed Description

Standard Ignition DS-620 is a headlight switch designed for dependable on/off control of the lighting circuit. Its direct-fit construction and rectangular connector layout support OE-style replacement on compatible Ford Explorer and Ranger models, along with Mazda B2300, B3000, B4000, and Mercury Mountaineer vehicles. The DS-620 part number is commonly searched by technicians and DIY repairers looking for a replacement headlight switch that matches the original electrical interface.

This part cross-references 1S4552 and SW716 for the same application.

What It Helps Fix

• Headlights that do not turn on or off correctly
• Intermittent lighting operation at the switch
• Worn or damaged switch contacts
• Electrical resistance issues in the headlight control circuit
• Replacement needs after connector or terminal wear

Installation Notes and Tips

Verify connector shape, terminal count, and vehicle year before installation. This switch uses a female rectangular connector with 8 blade terminals and a direct, snap-fit attachment method. Confirm the vehicle’s 12-volt system and match the original switch layout to the DS-620 before replacing the existing unit.

Quality Assurance

Standard Ignition builds this switch with robust materials and copper alloy conductors, then tests each unit for electrical and mechanical switching performance. That process supports consistent operation in service replacement applications.