Standard Ignition LS417 Back Up Light Switch

Back Up Light Switch for Mustang

Standard Ignition LS417 is a screw-in back up light switch for select Ford Mustang applications from 2011-2023. It uses a metal and plastic construction with a female connector, oval/square connector shape, and two male blade terminals for direct electrical control of the reverse lamps.

Key Features

• Back up light switch for Ford Mustang reverse lamp operation
• Screw-in mounting and screw-in attachment method
• Metal and plastic housing with metal finish
• 1 female connector with oval and square connector shape
• 2 male blade terminals for electrical connection
• Standard Ignition LS417 replacement part number

Detailed Description

Standard Ignition LS417 is a back up light switch built for 2011-2023 Ford Mustang models. This switch is used in the reverse light circuit to signal when the transmission is placed in reverse, helping activate the rear backup lamps. The screw-in design, blade terminals, and single female connector support a direct-fit electrical replacement for Mustang reverse light service. This part cross-references Ford OE-style numbers such as BR3Z15520A and NS16726 for the same application.

What It Helps Solve

• Reverse lights that do not illuminate when the vehicle is shifted into reverse
• Intermittent backup lamp operation caused by a worn switch
• Electrical faults at the reverse light switch connection
• Transmission-related reverse lamp signal issues
• Need for a replacement back up light switch on a Ford Mustang

Installation Notes and Tips

Install LS417 in the original screw-in switch location and verify the connector style and terminal layout before installation. Confirm the vehicle is a 2011-2023 Ford Mustang and inspect the reverse lamp circuit for corrosion, damaged wiring, or loose terminals during service. After installation, test the backup lights with the transmission in reverse to confirm proper operation.

Quality Assurance

Standard Ignition manufactures electrical service parts for replacement applications, and LS417 is built to match the listed connector, terminal, and mounting configuration for the specified Mustang fitment.