Overview. The Grote 82-1019 Trailer Plug, 7 Pole, W/Guard, Die Cast, is engineered for dependable power and lighting connections on heavy-duty combinations. Designed for demanding fleet service, this cable‑mount plug provides a stable interface for core trailer circuits—brake, turn, tail/marker, ABS, and auxiliaries—helping maintain reliable operation across tractors, trailers, and converter dollies.

Durable, fleet-ready design. The die-cast metal housing resists impact, abrasion, and corrosion common to road and yard environments. Its integrated spring cable guard adds robust strain relief, protecting the cable jacket at the highest-stress bend point to reduce conductor fatigue. The plug uses the common 7-way round‑pin layout to mate securely with standard heavy‑duty receptacles, promoting consistent contact and current transfer under vibration.

Compatibility and serviceability. Built around the widely used 7‑pole heavy‑duty format, this field‑wireable plug supports quick on-vehicle repair to minimize downtime. It is well-suited for 12 V DC tractor–trailer electrical systems and routine fleet maintenance practices. Use it where a durable, die‑cast 7‑way plug with an integrated guard is required to protect the pigtail and maintain reliable connections in harsh operating conditions.