{"product_id":"cummins-onan-qd12500-diesel-rv-generator-a055e844","title":"Cummins Onan QD 12,500W Diesel RV Generator – A055E844 (12.5HDKCB-11506)","description":"\u003ch2\u003eMaximum Diesel Power for Luxury Motorhomes\u003c\/h2\u003e\n\n\u003cp\u003eThe Cummins Onan QD 12500 Diesel RV Generator A055E844 is designed for RV owners who refuse to compromise on comfort, convenience, or performance. Built around the proven 12.5HDKCB-11506 platform, this premium diesel-powered generator delivers 12,500 watts of dependable onboard electricity for the largest and most demanding motorhomes on the road.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're operating multiple air conditioning systems, residential appliances, battery charging systems, entertainment equipment, induction cooking appliances, or extended off-grid living setups, the QD 12500 is engineered to provide dependable power without sacrificing comfort.\u003c\/p\u003e\n\n\u003cp\u003eAs one of the most capable RV generators in the Cummins Onan lineup, the QD 12500 is the preferred choice for luxury diesel coaches, full-time RV travelers, and owners seeking commercial-grade onboard power performance.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e12,500 watts of diesel-powered RV electricity\u003c\/li\u003e\n\u003cli\u003eQuiet Diesel™ technology\u003c\/li\u003e\n\u003cli\u003ePure sine wave electrical output\u003c\/li\u003e\n\u003cli\u003eLiquid-cooled diesel engine\u003c\/li\u003e\n\u003cli\u003eDesigned for luxury diesel motorhomes\u003c\/li\u003e\n\u003cli\u003eDigital voltage regulation\u003c\/li\u003e\n\u003cli\u003eMicroprocessor-based controls\u003c\/li\u003e\n\u003cli\u003eAdvanced onboard diagnostics\u003c\/li\u003e\n\u003cli\u003eLow-vibration mounting system\u003c\/li\u003e\n\u003cli\u003eSupports multiple rooftop air conditioners\u003c\/li\u003e\n\u003cli\u003eCommercial-grade durability\u003c\/li\u003e\n\u003cli\u003eTrusted Cummins Onan engineering\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBest Uses\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eLuxury Class A diesel motorhomes\u003c\/li\u003e\n\u003cli\u003eFull-time RV living\u003c\/li\u003e\n\u003cli\u003eExtended off-grid camping\u003c\/li\u003e\n\u003cli\u003eMultiple air conditioner operation\u003c\/li\u003e\n\u003cli\u003eResidential-style RV appliances\u003c\/li\u003e\n\u003cli\u003eLong-distance travel\u003c\/li\u003e\n\u003cli\u003eHigh-demand electrical systems\u003c\/li\u003e\n\u003cli\u003eLuxury coach conversions\u003c\/li\u003e\n\u003cli\u003eGenerator replacement projects\u003c\/li\u003e\n\u003cli\u003ePremium RV power applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuilt for the Largest RV Electrical Demands\u003c\/h2\u003e\n\n\u003cp\u003eModern luxury coaches often require significantly more power than traditional RVs. Residential refrigerators, electric cooking equipment, battery charging systems, entertainment centers, and multiple climate-control systems all place substantial demands on onboard electrical systems.\u003c\/p\u003e\n\n\u003cp\u003eThe QD 12500 was engineered specifically to support these requirements while delivering the reliability expected from a premium diesel-powered generator platform.\u003c\/p\u003e\n\n\u003ch2\u003eRun Multiple Air Conditioners with Power to Spare\u003c\/h2\u003e\n\n\u003cp\u003eThe QD 12500 is designed to operate up to three 15,000 BTU rooftop air conditioners while still providing additional capacity for appliances, electronics, lighting, and other RV electrical loads. This makes it an excellent choice for travelers spending time in hot-weather destinations or full-time RV owners who demand residential-level comfort. :contentReference[oaicite:0]{index=0}\u003c\/p\u003e\n\n\u003ch2\u003eQuiet Operation for Premium Camping Experiences\u003c\/h2\u003e\n\n\u003cp\u003eThe QD 12500 utilizes advanced sound attenuation, vibration isolation, and Quiet Diesel technology to help reduce operating noise. Cummins notes that the generator is quieter than National Park Service sound-level requirements, making it ideal for campgrounds, RV resorts, and remote destinations. :contentReference[oaicite:1]{index=1}\u003c\/p\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eCummins Onan QD 12500 Diesel Generator\u003c\/li\u003e\n\u003cli\u003eModel 12.5HDKCB-11506\u003c\/li\u003e\n\u003cli\u003eFactory Documentation\u003c\/li\u003e\n\u003cli\u003eOperator Information\u003c\/li\u003e\n\u003cli\u003eWarranty Documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCummins Onan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eQD 12500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA055E844\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12.5HDKCB-11506\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12,500 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120\/240V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle Phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFuel Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiesel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLiquid-Cooled Diesel Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStarting System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRemote Electric Start\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePure Sine Wave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApproximate Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e787–794 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (L x W x H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e41.4\" x 24.5\" x 27\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLuxury Motorhome \/ RV Power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat fuel does the A055E844 use?\u003c\/h3\u003e\n\u003cp\u003eThe QD 12500 operates on diesel fuel and is designed specifically for diesel-powered motorhomes and luxury RV applications.\u003c\/p\u003e\n\n\u003ch3\u003eCan the QD 12500 run three air conditioners?\u003c\/h3\u003e\n\u003cp\u003eYes. The QD 12500 is designed to operate up to three 15,000 BTU rooftop air conditioners while still providing additional power capacity for other onboard loads. :contentReference[oaicite:2]{index=2}\u003c\/p\u003e\n\n\u003ch3\u003eWhy choose a diesel generator for a luxury motorhome?\u003c\/h3\u003e\n\u003cp\u003eMany diesel coach owners prefer a diesel generator because it utilizes the same fuel source as the vehicle, simplifying fuel management while supporting long runtime and durability.\u003c\/p\u003e\n\n\u003ch3\u003eIs the QD 12500 considered a quiet generator?\u003c\/h3\u003e\n\u003cp\u003eYes. Quiet Diesel technology, advanced sound insulation, and vibration reduction systems help minimize operating noise. :contentReference[oaicite:3]{index=3}\u003c\/p\u003e\n\n\u003ch3\u003eDoes this generator provide clean power for electronics?\u003c\/h3\u003e\n\u003cp\u003eYes. The QD 12500 produces pure sine wave power suitable for modern electronics and sensitive RV equipment. :contentReference[oaicite:4]{index=4}\u003c\/p\u003e\n\n\u003ch3\u003eIs this generator suitable for full-time RV living?\u003c\/h3\u003e\n\u003cp\u003eAbsolutely. The QD 12500 is commonly selected by full-time RV travelers and owners of luxury diesel coaches who depend on consistent electrical power every day.\u003c\/p\u003e\n\n\u003ch3\u003eCan it support residential appliances?\u003c\/h3\u003e\n\u003cp\u003eYes. The QD 12500 is designed to power high-demand appliances commonly found in luxury motorhomes.\u003c\/p\u003e\n\n\u003ch3\u003eDoes the generator include diagnostic capabilities?\u003c\/h3\u003e\n\u003cp\u003eYes. Microprocessor-based controls provide onboard diagnostics and troubleshooting support. :contentReference[oaicite:5]{index=5}\u003c\/p\u003e\n\n\u003ch3\u003eIs professional installation recommended?\u003c\/h3\u003e\n\u003cp\u003eYes. Professional installation is recommended to ensure proper fuel, cooling, exhaust, and electrical integration.\u003c\/p\u003e\n\n\u003ch3\u003eWho is the ideal buyer for the QD 12500?\u003c\/h3\u003e\n\u003cp\u003eThe QD 12500 is ideal for luxury diesel motorhome owners, full-time RV travelers, and users requiring maximum onboard electrical capacity.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy From All Pro Generators?\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eFamily-Owned Since 2018\u003c\/li\u003e\n\u003cli\u003eFree Shipping Across the Continental United States\u003c\/li\u003e\n\u003cli\u003eAuthorized Dealer Support\u003c\/li\u003e\n\u003cli\u003eCompetitive Pricing\u003c\/li\u003e\n\u003cli\u003eKnowledgeable Generator Specialists\u003c\/li\u003e\n\u003cli\u003eU.S.-Based Customer Service\u003c\/li\u003e\n\u003cli\u003eSupport Available 7 Days Per Week\u003c\/li\u003e\n\u003cli\u003eCall 954-249-2314 for Expert Assistance\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cummins","offers":[{"title":"Default Title","offer_id":45106246647923,"sku":"A055E844","price":16965.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/2359\/7385\/files\/cummins-onan-a055e844-main.jpg?v=1781577222","url":"https:\/\/allprogenerators.com\/products\/cummins-onan-qd12500-diesel-rv-generator-a055e844","provider":"AllProGenerators","version":"1.0","type":"link"}