Roadmaster 155 Bulb-and-Socket Towed Vehicle Wiring Kit - Two 1157 Bulbs, 30-Foot Harness

Roadmaster 155 is a complete incandescent bulb-and-socket flat-towing lighting kit. Instead of splicing into the towed car's factory taillight circuits, it installs two independent 1157 bulbs inside compatible lamp housings, isolating the motorhome lighting wiring from the vehicle electronics. Diodes are not included or required for this separate-light arrangement.

Kit contents and required clearance

• Two 1157 incandescent bulbs with low-profile sockets and pigtails.
• 30-foot electrical harness with molded four-way flat connectors and six-foot RV-to-towed-vehicle patch cord.
• Wiring hardware, split loom, cable ties and instructions.
• Each socket requires a 1-inch-diameter mounting hole. The bulb projects 1-7/8 inches from the hole, and at least 1/4 inch of clearance is required between bulb and lens.

Not all vehicle taillight housings can accommodate an extra bulb. Confirm space and vehicle applicability through Roadmaster FitMaster before drilling. This kit is different from diode kit 154 and the replacement bulb/socket pair 155-2.

• It provides wiring for the towed vehicle lighting connection; diodes are not included.

Key Features

• Eliminates the Concern of Interacting with Any Vehicle Electronics.
• Hands-On Design and Manufacturing.
• The Most Stringent Testing in the Industry.
• Limited 90 Day Warranty.

Specifications

Package Contents & Exclusions

Part Identification