Standard Ignition LS425 Back Up Light Switch

Back Up Light Switch for Toyota Tacoma

Standard Ignition LS425 is a screw-in back up light switch built for direct replacement service on select Toyota Tacoma models. It uses a metal body with a female connector, two male blade terminals, and a single connector layout for a straightforward electrical connection.

Key Features

• Fits 2016-2021 Toyota Tacoma
• Screw-in mounting and attachment method
• Metal construction with metal/plastic finish
• Female connector with 2 male blade terminals
• Activation style: switch
• Direct replacement part number LS425

Detailed Description

This Standard Ignition LS425 back up light switch is designed for Toyota Tacoma applications from 2016 through 2021. It threads into place with a screw-in mount and uses a simple switch activation style to help restore reverse light operation when the original unit wears out or fails. The LS425 is a practical OE-style replacement for drivers searching for a Toyota Tacoma back up light switch, reverse light switch, or transmission-mounted switch replacement.

Standard Ignition LS425 cross-references OE-style part numbers 8421071050 and NS16734 for the same application. If you are replacing a faulty Toyota Tacoma backup lamp switch, this part number is a direct reference to keep on hand during diagnosis and ordering.

Common Issues This Part Can Help Solve

• Reverse lights do not illuminate when the vehicle is shifted into reverse
• Intermittent backup lamp operation
• Broken or worn switch contacts inside the original unit
• Electrical connection problems at the switch terminals
• Need for a replacement back up light switch on a 2016-2021 Toyota Tacoma

Installation Notes and Tips

Install the LS425 by matching the screw-in mounting style and connecting the female plug to the vehicle harness. Verify terminal alignment before tightening, and inspect the connector and surrounding wiring for corrosion, damage, or looseness before final assembly. Because mounting hardware, gaskets, and wiring harness are not included, reuse serviceable existing components as needed.

Quality Assurance

Standard Ignition is a recognized aftermarket source for electrical and switch components. This LS425 back up light switch is built with metal and plastic materials and uses a blade-terminal design for service replacement on supported Toyota Tacoma applications.