Grote 66904 6” Sentry Light Pigtail – Three-Wire Ground Return, Slim-Line .180 Male Terminals

Reliable Ground Return Connectivity for Sentry Lamps

The Grote 66904 is a professional-grade 6-inch pigtail designed specifically for the Grote Sentry lighting series. While other pigtails in the series rely on a chassis ground, the 66904 is engineered for Ground Return systems. This three-wire configuration provides a dedicated path for the ground circuit, making it the preferred choice for applications where grounding directly to the vehicle frame is not feasible or desired.

Superior ULTRA-BLUE-SEAL® Protection

In the harsh environment of heavy-duty trucking, moisture is the leading cause of electrical failure. The Grote 66904 is built with Ultra-Blue-Seal® technology, featuring factory-molded plugs and an integrated O-ring seal. This weather-tight design creates a robust barrier against road salt, dirt, and water wicking, effectively preventing the terminal corrosion that leads to flickering lights and premature lamp failure.

High-Performance Heavy-Duty Construction

Designed for long-haul durability, this pigtail is constructed with high-quality 14-gauge GPT wire. It features three Slim-Line .180" male bullet terminals on the power end, providing a precision "plug-and-play" fit into your existing wiring harness. Whether you are maintaining 5206-, 5202-, or 5306- series lamps, the 66904 delivers the consistent conductivity required for fleet safety and compliance.

• Ground Return System: Provides a dedicated ground wire for more reliable electrical circuits in complex wiring environments.
• Sentry Lamp Compatibility: Engineered to fit Grote 5206, 5202, and 5306 series marker and signal lamps.
• Ultra-Blue-Seal® Moisture Barrier: Factory-molded plugs and O-rings block out environmental contaminants.
• Heavy-Duty 14 GA Wire: GPT wire material ensures superior flexibility and resistance to abrasion.
• Precision Terminals: Features three .180" Slim-Line male bullet connectors for a secure, vibration-proof fit.