Grote 66145 - 26' Marker Light Jumper Harness, Two Standard Males to Two Double Females

Heavy-Duty Power Extension for Large-Chassis Trailers The Grote 66145 Jumper Harness is an industrial-grade wiring solution designed to provide reliable, extended power delivery for marker and clearance lamps on heavy-duty trailers. Measuring 26 feet (312 inches) in length, this harness is specifically engineered to bridge the long distances found in large trailer configurations, ensuring consistent signal performance across the entire vehicle frame.

Versatile Power Splitting and Connectivity This harness features a specialized configuration of Two Standard .180" Male Bullets to Two Double Slim-Line .180" Female Receptacles. This "double-female" design acts as a high-quality power splitter, allowing for the connection of multiple marker lamps from a single power source. Whether you are outfitting a new trailer or performing a full system overhaul, the 66145 provides a clean, "plug-and-play" solution that eliminates the need for messy, unreliable manual splicing.

Built for the Long Haul Constructed with premium 14-gauge GPT wire, the Grote 66145 is built to withstand the punishing vibrations and environmental stresses of the open road. The factory-molded connectors are designed to resist moisture, road chemicals, and corrosion—the primary causes of electrical failure in trailer systems. By maintaining a secure, watertight seal, this harness reduces maintenance downtime and ensures your fleet remains safe and FMVSS 108 compliant.