{"product_id":"5302223","title":"5302223 | Genuine Cummins® Onan FLEXPLATE","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e: Onan FLEXPLATE\u003cbr\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e: New\u003cbr\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 5302223\u003cbr\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e: Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003cp data-path-to-node=\"3\"\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"0\"\u003e1. Compatible Equipment Applications\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003eThis flexplate is specifically engineered for heavy-duty commercial and industrial \u003cb data-path-to-node=\"4\" data-index-in-node=\"83\"\u003eCummins Onan Diesel Generator Sets\u003c\/b\u003e. It serves as the mechanical bridge inside the flywheel housing. It fits:\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb data-path-to-node=\"5,0,0\" data-index-in-node=\"0\"\u003eOnan Protec™ Series:\u003c\/b\u003e Top-tier commercial mobile diesel generators.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"0\"\u003eOnan Commercial QD (Quiet Diesel) Series:\u003c\/b\u003e Heavy-duty generators ranging from \u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"77\"\u003e10.0 kW to 12.5 kW\u003c\/b\u003e (10,000–12,500 Watts).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb data-path-to-node=\"5,2,0\" data-index-in-node=\"0\"\u003eIndustrial \u0026amp; Specialty Generators:\u003c\/b\u003e Marine, specialized utility vehicle, and emergency backup power generators utilizing Kubota or small Cummins diesel power units.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003e2. Common Vehicle Types\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eBecause these specific high-capacity generators are permanently mounted inside heavy vehicles, this part is highly sought after for:\u003c\/p\u003e\n\u003cul data-path-to-node=\"8\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,0,0\"\u003e\u003cb data-path-to-node=\"8,0,0\" data-index-in-node=\"0\"\u003eClass A Motorhomes \u0026amp; Luxury RVs:\u003c\/b\u003e Large diesel pushers (e.g., Tiffin, Newmar, Monaco, Winnebago) running dual or triple air conditioners that rely on an Onan QD 10,000 or 12,500 generator.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\"\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003eCommercial Mobile Work Trucks:\u003c\/b\u003e Mobile medical clinics, television broadcast vehicles, command centers, and emergency response trucks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\"\u003e\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003eRace Car Haulers \u0026amp; Trailers:\u003c\/b\u003e Heavy-duty trailers that require autonomous, continuous electrical power at the track.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe Onan FLEXPLATE is an original equipment manufacturer (OEM) mechanical coupling disc designed to link a diesel engine directly to a generator's alternator rotor.\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003cp data-path-to-node=\"3\"\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"0\"\u003e1. What is it?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003eA flexplate is a stamped, high-tensile steel disc that replaces a traditional heavy flywheel in specialized generator setups. It bolts directly to the engine's crankshaft flange on one side, and to the generator's rotor shaft on the other.\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"0\"\u003e2. Core Functions\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"6\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,0,0\"\u003e\u003cb data-path-to-node=\"6,0,0\" data-index-in-node=\"0\"\u003eRotational Power Transfer:\u003c\/b\u003e Its primary role is to transmit 100% of the engine’s rotational torque directly into the generator rotor to spin the electrical fields and generate AC power.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,1,0\"\u003e\u003cb data-path-to-node=\"6,1,0\" data-index-in-node=\"0\"\u003eVibration and Shock Absorption:\u003c\/b\u003e As a diesel engine runs, it creates powerful torsional firing pulses. The flexplate is engineered to \"flex\" slightly along its flat axis. This absorbs micro-vibrations and prevents engine pulses from snapping or damaging the generator's internal rotor shaft.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,2,0\"\u003e\u003cb data-path-to-node=\"6,2,0\" data-index-in-node=\"0\"\u003eAlignment Compensation:\u003c\/b\u003e It accommodates microscopic thermal expansion and slight axial misalignments between the engine block and the generator housing as the machinery heats up under heavy electrical loads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSigns of Faulty\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003cp data-path-to-node=\"3\"\u003e\u003cstrong\u003e1. Loud Metal Clanking, Knocking, or Rattling Noises\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003eThe most common indicator of a failing flexplate is a loud, metallic noise coming directly from the bell housing area (where the engine meets the generator). If the plate cracks or the bolt holes oval out, it will create a severe clanking, rattling, or knocking sound—especially during generator startup, shutdown, or when a heavy electrical load (like an A\/C unit) kicks in.\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"0\"\u003e2. Heavy Mechanical Vibrations\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eA cracked or warped flexplate throws the rotating mass of the engine and generator rotor out of balance. This causes structural, harmonic vibrations that can shake the entire RV, mobile clinic, or truck chassis while the generator is running.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003e\u003cb data-path-to-node=\"7\" data-index-in-node=\"0\"\u003e3. Engine Cranks but Generator Doesn't Spin (No Power Output)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003eIf the flexplate suffers a catastrophic structural failure and shears completely in half around the bolt circle, the engine's crankshaft will spin freely without turning the generator rotor. The engine will sound like it is running perfectly, but the generator will fail to produce any electricity, often throwing an under-frequency or speed fault code on the control panel.\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003e4. Starter Engagement Issues or Grinding\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003eIf the generator engine relies on gear teeth attached to the perimeter of the flexplate assembly for the starter motor to grab, a warped plate or stripped teeth will cause a loud grinding noise when you press the start button, or the starter may spin without cranking the engine.\u003c\/p\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003e5. Visible Metal Shavings or Dust\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"12\"\u003eDuring a physical inspection of the flywheel housing vents or inspection cover, finding fine steel dust, metal shavings, or rusted powder (fretting residue) indicates that the flexplate is cracking and the metal is rubbing violently under load.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer information\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eCummins®\u003c\/strong\u003e is a worldwide leader in the production of engines, agricultural components, and other power-generating devices for various industries, including medium and heavy duty trucks, light commercial vehicles, buses, agriculture, and construction. Founded in 1919, this company stays true to its mission of making people's lives better by continuously improving its product line-up and introducing new solutions for a more prosperous world. Its core values—integrity, diversity and inclusion, excellence, caring, and teamwork—are what make it a successful company today—a worldwide leader with a network of more than 600 company-owned and independent distributors and almost 6,000 dealers in approximately 190 countries.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003cbr\u003eFirst Truck Parts offers a \u003cstrong\u003e365-days\u003c\/strong\u003e \u003cstrong\u003ewarranty\u003c\/strong\u003e for all types of parts and in any condition. The warranty applies only to buyers who have placed an order on our website.\u003c\/p\u003e","brand":"Cummins®","offers":[{"title":"Default Title","offer_id":48833629257972,"sku":"5302223","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/1479\/5764\/files\/s-l1600_11_1600x_31f272a2-0af3-42be-959e-edd6032d1bc1.jpg?v=1783533829","url":"https:\/\/firsttruckparts.com\/products\/5302223","provider":"First Truck Parts","version":"1.0","type":"link"}