{"product_id":"roadmaster-rm-767-heavy-duty-manual-master-battery-disconnect-switch","title":"Roadmaster RM-767 Heavy-Duty Manual Master Battery Disconnect Switch","description":"\u003cdiv class=\"product-description-roadmaster\"\u003e\n\u003cp\u003eSafely and instantly disconnect your towed vehicle's battery without tools using the heavy-duty \u003cstrong\u003eRoadmaster RM-767 Manual Master Battery Disconnect Switch\u003c\/strong\u003e. Designed to eliminate the constant hassle and terminal wear of unbolting battery cables before flat towing, the 767 features a heavy-duty rotary master dial mounted conveniently under the hood or on the frame rail.\u003c\/p\u003e\n\n\u003cp\u003eEngineered for high-demand applications, the Roadmaster 767 handles up to 300 amps continuous duty and 1,000 amps surge, making it the ideal solution for large gas engines, high cold-cranking amp batteries, and heavy-duty diesel pickup trucks flat-towed behind motorhomes. It isolates the vehicle starter and electrical system while preserving dedicated power leads for supplemental braking systems (such as the Roadmaster InvisiBrake) and breakaway safety circuits.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features \u0026amp; Engineering Highlights:\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Rotary Master Dial:\u003c\/strong\u003e Simple turn of the dial completely isolates the battery terminal—no wrenches, no sparks, and no stripped terminal bolts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtreme High-Amp Capacity:\u003c\/strong\u003e Rated for 300 amps continuous duty and 1,000 amps cold-cranking surge, making it fully certified for heavy diesel and high-draw vehicle electrical systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuxiliary Constant Power Supply:\u003c\/strong\u003e Built-in terminal bypass maintains active power to supplemental brakes, breakaway devices, and towed vehicle monitoring accessories while the starter circuit is isolated.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial Zinc-Plated \u0026amp; Copper Construction:\u003c\/strong\u003e Built with corrosion-resistant mounting brackets and solid copper electrical terminals to withstand road spray, salt, and severe underhood environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Security Application:\u003c\/strong\u003e Can also serve as a high-security manual battery cut-off switch to prevent parasitic battery drain during seasonal storage and deter vehicle theft.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTurnkey Professional Installation:\u003c\/strong\u003e Certified in-store installation available at Truck Guy Upfitters (510 W North 1st St, Seneca, SC 29678).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eSpecifications \u0026amp; Kit Contents:\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Roadmaster Inc.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 767 (SKU: RM-767)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 758306339040\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContinuous Duty Rating:\u003c\/strong\u003e 300 Amps @ 12V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurge Duty Rating:\u003c\/strong\u003e 1,000 Amps\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Heavy-duty gas and diesel vehicles requiring battery disconnect for dinghy \/ flat towing, seasonal storage, or anti-theft protection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Heavy-duty rotary switch, mounting bracket, heavy-gauge battery cables with crimped copper lugs, terminal boots, hardware, and installation manual.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: If your vehicle utilizes dual starting batteries on the starting circuit (common in dual-battery diesel pickups), one 767 disconnect is required per starting battery.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Roadmaster","offers":[{"title":"Default Title","offer_id":67597210353798,"sku":"RM-767","price":144.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/8877\/1462\/files\/roadmaster_767_studio_1.webp?v=1790874732","url":"https:\/\/truckguy.pro\/products\/roadmaster-rm-767-heavy-duty-manual-master-battery-disconnect-switch","provider":"                        truck guy   UPFITTERS","version":"1.0","type":"link"}