Midland Industries Electric Utility Boxes

Overview

The MIDLAND INDUSTRIES 39819 is a 7-way cap plug in blade style, designed to protect air brake electrical connectors on commercial trailers and tractor-trailer combinations when the glad hands or electrical connections are disconnected. Constructed with a plastic body, this cap plug seals the 7-way socket from dirt, moisture, and debris that can cause corrosion and connector failure. It weighs 0.19 pounds and measures 3.65 inches in length, 2.65 inches in width, and 1.75 inches in height. Fleet maintenance technicians and truck shop mechanics install this part as a standard protective accessory during trailer storage or between hauls. This cap plug is used in commercial trucking and heavy-duty trailer applications where 7-way blade-style electrical connectors are standard equipment. It is suited for both over-the-road fleets and yard trailers that sit disconnected for extended periods. Keeping the socket capped prevents contact contamination that leads to lighting and ABS system faults at inspection or hookup. Key Features Blade-style 7-way configuration matches standard commercial trailer electrical sockets Plastic body construction resists corrosion in outdoor storage environments Compact form factor: 3.65 inches long, 2.65 inches wide, 1.75 inches tall Lightweight at 0.19 pounds for easy handling and storage in a toolbox or cab Protects connector pins from dirt, moisture, and physical damage when trailer is uncoupled Compatibility Designed as a protective cap for…