{"product_id":"midland-industries-39774-solid-pin-7-way-socket","title":"Midland Industries 39774 Solid Pin 7-way Socket","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe MIDLAND INDUSTRIES 39774 is a solid pin 7-way socket designed for air brake trailer wiring connections. The metal body construction provides durability in demanding commercial vehicle and fleet service environments. At 0.52 pounds and compact dimensions, it fits into standard trailer nose box installations without modification. The 7-way configuration supports the full range of trailer lighting, brake, and auxiliary circuits required by DOT-compliant tractor-trailer setups. This fitting is handled by fleet technicians, heavy truck mechanics, and trailer service shops.\u003c\/p\u003e\u003cp\u003eThis socket is categorized under air brake accessories and brass fittings, indicating application in commercial vehicle air brake and electrical systems. The 7-way socket style is the standard connector format for Class 7 and Class 8 tractor-trailer combinations, as well as heavy-duty flatbed, dry van, and refrigerated trailer configurations. It is typically installed at the trailer nose box or on the tractor rear apron plate where the umbilical connection is made between tractor and trailer.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid pin design for secure, low-resistance electrical contact\u003c\/li\u003e\n\u003cli\u003eMetal body construction for resistance to road vibration, moisture, and mechanical wear\u003c\/li\u003e\n\u003cli\u003e7-way configuration supports lighting, electric brakes, and auxiliary circuits\u003c\/li\u003e\n\u003cli\u003eCompact footprint at 3 inches length by 2.85 inches width by 2.85 inches height\u003c\/li\u003e\n\u003cli\u003eLow minimum order quantity suitable for single-unit service replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement 7-way trailer socket for commercial tractor-trailer air brake and electrical systems requiring a standard solid pin connector format.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified heavy truck or trailer technicians. Disconnect shore power and verify the tractor is shut down and all trailer circuits are de-energized before replacing the socket. Secure all wiring connections per SAE J560 wiring color and pin assignment conventions and confirm the mounting hardware is torqued to the chassis manufacturer's specification. Inspect the socket housing and seal condition before returning the unit to service.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration\u003c\/strong\u003e: 7-Way Solid Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 2.85 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 2.85 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.52 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: MIDLAND INDUSTRIES\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 39774\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MIDLAND INDUSTRIES","offers":[{"title":"Default Title","offer_id":67949365756210,"sku":"39774","price":23.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/235effdf6252d7263887bb44ad512be5.jpg?v=1791690269","url":"https:\/\/voomisupply.com\/products\/midland-industries-39774-solid-pin-7-way-socket","provider":"Voomi Supply","version":"1.0","type":"link"}