Sterling L-Series Truck Cab Lights

Frequently Asked Questions About Sterling L-Series Truck Cab Lights

Will these cab lights fit my Sterling L-Series truck?

Cab lights in this category are designed to fit the cab marker light locations on Sterling L-Series trucks, including popular models like the L7500, L8500, and L9500. Because mounting points and bulb styles can vary slightly by year and configuration, it's a good idea to compare the light housing, mounting base, and wiring connector against your existing setup or original equipment before ordering.

What is the difference between the light housing and the lens?

The housing is the base or bracket that mounts to the cab and holds the wiring and bulb or LED, while the lens is the colored or clear cover that snaps or screws onto the housing. Some products are sold as complete assemblies with both pieces included, while others are sold as replacement lenses or housings only, so check the product listing carefully to make sure you're ordering the correct component for your needs.

Are these cab lights LED or incandescent, and can I upgrade?

This category includes both LED and incandescent style cab lights. LED lights generally offer longer service life and lower power draw compared to incandescent bulbs. If your current setup uses incandescent lights, many housings can accept an LED replacement bulb or you can choose a full LED light assembly, but always confirm the bulb base and voltage match your truck's electrical system.

How do I install or replace a cab light on my Sterling L-Series?

Most cab lights mount using a simple bracket or grommet system secured with screws or clips, and connect to the truck's wiring harness with a standard bullet or spade connector. Installation typically involves removing the old light, disconnecting the wiring, mounting the new housing, and reconnecting the wiring before testing the light. If your cab lights are wired in a series, keep in mind that a single failed bulb or connection can sometimes affect the others on that circuit.

What materials and finishes are available for cab light housings and lenses?

Housings are commonly made from durable plastic or chrome-plated metal to hold up to outdoor exposure and vibration, while lenses come in clear, amber, and red options depending on the light's position and function. Chrome and stainless finishes are popular for a polished look that matches other cab hardware, while standard plastic housings offer a more budget-friendly option without sacrificing function.