When you're hauling heavy on highways day or night, marker lights for semi trucks aren’t just about looks — they’re essential for visibility, safety, and DOT compliance. Whether you're upgrading your ride, or replacing worn-out lights, our in-stock selection of lights offers easy-to-mount DOT-compliant illumination on your fender, cab, or sleeper. Explore our wide selection of LED clearance lights for trucks — available in round, oval, rectangular, and bullet styles — all designed to fit a variety of makes and models. Compatible with various models, you can choose white, amber, blue, green, red, or purple light color options along with sequential turn signals or dual revolution features.

Why LED Marker Lights Are a Smart Choice for Semi Trucks

Tired of replacing burned-out bulbs or dealing with dim lighting? Modern LED clearance lights for trucks offer: Longer lifespan — LEDs outlast traditional bulbs by thousands of hours. Low power draw — Save battery life and reduce strain on your electrical system. Improved visibility — Crisp, bright output cuts through fog, rain, and night driving. Sleek style options — Choose amber, red, or clear lenses to match your truck’s look. Whether you’re shopping for semi-trailer clearance lights or marker lights for the cab, fenders, or roofline, we’ve got everything you need to light up your ride.

Top Features and Benefits

Every clearance light in this category is tested tough. Most include features like: - Waterproof and weather-resistant housings. - Easy surface or flush mount installations. - Standard two-wire hookups or grommet plug-in options. - DOT and SAE compliance where required. Want something subtle? Go low-profile. Need bold visibility? Opt for strobe or high-intensity LED marker lights.

What’s the Difference Between Clearance Lights vs Marker Lights?

Not sure what’s what? Here’s a quick breakdown: Clearance lights mark the outer edges of your semi truck or trailer’s height and width, alerting other drivers to your vehicle’s size. Marker lights highlight the presence and shape of your vehicle, especially from the side. While they serve slightly different roles, both are required — and both can be upgraded to brighter, longer-lasting LEDs for better visibility and durability. We offer universal semi-truck lighting fixtures, including commercial driving lights and fog lights.

Shop Online for the Best Marker Lights for Semi Trucks at 4 State

From old-school classics to sleek modern LEDs, 4 State Trucks is your one-stop shop for clearance and marker lights for commercial trucks. With competitive prices, fast shipping, and a massive inventory of truck and trailer lighting, you’ll find what you need to upgrade or maintain your rig.