Shop Semi Truck Marker Lights & LED Clearance Lights
Find SAE and DOT-approved replacement marker lights to decorate the entirety of your semi truck. Whether you want miniature lorry marker lights to accentuate your step toolbox and sleeper cab panel siding, or you prefer reflector light bar strips to be installed across the undercarriage, you can find the right LED marker/clearance lights to maximize visibility and style on your heavy-duty truck.Custom Chicken Lights, Watermelon Lights & Cab Light Kits
Customize your big rig with glass lens watermelon lights in a variety of sizes and wire configurations, from single function to dual function color-changing lights. Add lorry marker lights across the underbody, fenders, rear bumper, side panels, or roof for a custom show truck. In-stock and ready to ship, our commercial truck lighting inventory includes products from trusted aftermarket brands like Maxxima, Legendary, United Pacific, Roadworks, and JML Kustoms, to name a few.Shop Truck Lights by Style & Function
- Watermelon Marker Lights: Available in 3.5" and mini 1.5" sizes with glass or polycarbonate lenses.
- Dual-Function & Turn Signal Lights: 3-wire setups that transition from dim marker to bright turn or auxiliary functions.
- Chicken Light Kits: Complete LED setups for cab skirts, sleepers, and bumpers.
- Specialty Colors: Beyond standard Amber and Red, we stock Blue, Green, Purple, and White for off-road or show-truck use.
Flush Mount, Stud Mount & Surface Mount Dual Function Marker Light Configurations
Shop for the perfect mounting style to fit your new lights across your truck, whether itâs a stud mount, raised flush-mount, or recessed marker light configuration. Pair your lighting style with semi truck mud flap light bars. Choose from our wildly available in-stock selection of hardware to help configure your truckâs marker lights, from 1157 LED replacement bulbs to grommets and O-rings. Upgrade your visibility with semi truck headlights , semi truck driving lights, and semi truck universal cab lights.Frequently Asked Questions About Semi-Truck Marker Clearance Lights Universal
Will these universal marker lights fit my specific truck model and year?
Universal marker clearance lights are designed to fit most semi-trucks regardless of make, model, or year. They typically mount using standard 2-wire connections and fit into common mounting hole sizes (usually 3/4" or 2" diameter). However, you should verify your truck's mounting hole dimensions before ordering. Most universal lights work with 12V and 24V systems, making them compatible with virtually all commercial trucks including Peterbilt, Kenworth, Freightliner, Volvo, Mack, and International models from the 1980s to present.
What's the difference between LED and incandescent marker lights, and which should I choose?
LED marker lights last 50,000+ hours compared to 2,000-5,000 hours for incandescent bulbs, draw significantly less power (reducing alternator strain), and resist vibration damage better. While LEDs cost more upfront ($8-20 per light vs $3-8 for incandescent), they eliminate frequent bulb replacements and reduce downtime. LEDs also provide instant-on illumination and work better in extreme temperatures. Choose incandescent only if you need the lowest initial cost or have an older electrical system that requires the higher amp draw to function properly.
How difficult is the installation process, and what tools do I need?
Installation typically takes 15-30 minutes per light for someone with basic electrical knowledge. You'll need wire strippers, crimping tools, butt connectors or heat shrink terminals, electrical tape, and a drill with appropriate bits if adding new mounting holes. Most universal lights include pigtail wires that connect to your existing harness. The main challenges are accessing tight spaces behind panels and ensuring waterproof connections. Apply dielectric grease to connections and use heat shrink tubing to prevent corrosion, especially in areas exposed to road salt.
Are these lights DOT approved and will they pass inspection?
Quality universal marker lights sold by reputable suppliers are DOT approved and meet FMVSS 108 requirements. Look for lights with "DOT" stamped on the lens along with SAE ratings (P2, P3, or PC for clearance and side marker functions). These certifications ensure the lights meet federal brightness, visibility angle, and color standards. Amber lights are required on the front and side, red on the rear. Keep your purchase receipts and verify DOT markings are visible after installation to avoid inspection issues.
How long do these lights typically last, and what causes premature failure?
LED marker lights typically last 5-10 years in normal use, while incandescent versions need bulb replacements every 6-18 months. The most common failure points are corroded connections (responsible for 60% of failures), water intrusion through cracked lenses or failed gaskets, and vibration damage to internal components. To maximize lifespan, ensure proper grounding, use sealed connectors, check and replace weathered rubber gaskets annually, and apply a thin layer of silicone sealant around the lens edge during installation. Avoid over-tightening mounting screws which can crack plastic housings.
