Standard Ignition HLS1739 Headlight Switch

OE-Style Headlight Switch for Ford Expedition

The Standard Ignition HLS1739 headlight switch is a direct-fit OE replacement for restoring proper lighting control on select Ford Expedition models. It is built with copper alloy conductors for strong electrical conductivity and low resistive loss, along with a durable black plastic housing for everyday service use.

Fits 2015-2018 Ford Expedition, for vehicles equipped with automatic headlights. This Standard Ignition HLS1739 headlight switch is designed for a direct replacement application where the original switch has failed, worn contacts, or intermittent operation.

Key Features

• Direct-fit OE replacement for proper fit, form, and function
• Copper alloy conductors for efficient electrical transfer
• Black plastic finish for a factory-style appearance
• Female connector with 10 male pin terminals
• Push-on attachment method for straightforward installation
• 12-volt electrical design

Detailed Description

Standard Ignition HLS1739 is a replacement headlight switch engineered for 2015-2018 Ford Expedition vehicles equipped with automatic headlights. The switch is built to match OE-style dimensions and electrical requirements, helping restore normal headlamp control when the original unit becomes unreliable. The copper alloy conductor design supports stable current flow, while the robust construction is intended to meet the demands of professional repair work. This part cross-references Monroe Shocks & Struts (e.g., 1S15121, AL3Z11654CB) for the same application.

For buyers searching for a Ford Expedition headlight switch, automatic headlight switch replacement, or Standard Ignition HLS1739, this part provides a focused OE-style solution for the listed vehicle application.

Common Issues This Part May Solve

• Headlights do not turn on or off correctly
• Intermittent lighting control from a worn switch
• Faulty automatic headlight operation
• Electrical resistance caused by damaged internal contacts
• Restoration needs after switch failure on a Ford Expedition

Installation Notes and Tips

Verify that the vehicle is equipped with automatic headlights before ordering. Confirm connector style, terminal count, and voltage requirements against the original switch before installation. The push-on attachment and single female connector design should be matched to the factory harness and dash switch layout for proper fitment on the Ford Expedition.

Quality Assurance

Standard Ignition states that this replacement switch is manufactured under complete quality control throughout the production process. The design uses durable materials and OE-style construction to support consistent service performance in the listed application.