Partswcgg 4" Thin-Line Amber LED Trailer Clearance Marker Lights — 4-Pack, Waterproof, Low-Draw

These are Partswcgg 4" thin-line amber LED trailer clearance and side marker lights sold as a 4-piece sealed kit for quick, durable installation.

Keep your trailer visible and compliant with a slim, waterproof LED marker that fits most 12V DC systems. Each 4" x 1" rectangular light houses three bright LEDs in a one-piece sonically sealed lens and housing assembly. The set includes gray molded bases with pigtail wires and mounting screws for straightforward snap-in mounting on standard 3" centers.

How do these LED markers improve trailer visibility?

These thin-line markers use three concentrated LEDs in each unit to produce a clear amber signal that’s visible in daylight and low-light conditions. The sealed design protects the diodes and wiring from water and debris, so the output stays consistent over time.

• Triple LED array for brighter, more consistent light
• Amber lens color for standard clearance/marker signaling
• Waterproof sonic seal keeps out moisture and dust
• Low current draw (0.06 amps at 12.8V) for efficient operation

What makes installation fast and reliable?

Each light ships with a gray polycarbonate mounting bracket and two screws so you can snap the assembly into place and hardwire the supplied pigtail. The bracket’s 3" center hole pattern and plug-in style simplify alignment and replacement without special tools.

• Included mounting bracket and screws for snap-in mounting
• Hardwired pigtail for direct connection to trailer wiring
• Standard 3" center mount spacing for common compatibility
• Gray base resists corrosion and holds the lens securely

Will these lights fit my vehicle or trailer electrical system?

They are designed as universal 10V–13.8V DC marker lights suitable for most trailers, RVs, and light trucks on 12V systems. The compact rectangular footprint and standardized mounting make them a drop-in option for many existing marker light locations.

• Compatible with typical 12V DC trailer electrical systems
• Standard rectangular shape fits common marker cutouts
• Single-wire connection per unit simplifies wiring
• Low amperage draw minimizes load on circuits

How durable are these lights for outdoor use?

The lens and housing are sonically sealed into a single unit to prevent water intrusion and environmental damage. The polycarbonate base and sealed LED assembly resist vibration, dust, and road spray for long-term external use.

• One-piece sealed lens and housing prevents leaks
• Polycarbonate bracket resists impact and UV exposure
• Designed for vibration-prone trailer environments
• LEDs maintain brightness longer than incandescent bulbs

Who is this for: This 4-pack suits trailer owners, RV enthusiasts, fleet operators, and anyone needing low-profile amber side marker or clearance lights. It’s ideal when you want a compact, energy-efficient replacement or upgrade that installs quickly, fits standard mounting patterns, and stands up to outdoor conditions. If you need help selecting or installing these lights, Partswcgg customer support is available to assist within 24 hours.