{"product_id":"engine-kawasaki-fx820a-as00-s","title":"Kawasaki FX820A-AS00-S Engine | 34.5 HP, 1-1\/8\" Vertical Shaft","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFind a high-output replacement powerplant for your commercial zero-turn or riding mower with the \u003cstrong\u003eKawasaki FX820A-AS00-S vertical-shaft engine\u003c\/strong\u003e. This seller-listed new engine is advertised at \u003cstrong\u003e34.5 HP\u003c\/strong\u003e with a \u003cstrong\u003e1-1\/8-inch diameter × 4-9\/32-inch crankshaft\u003c\/strong\u003e, electric start, and multi-port digital fuel injection.\u003c\/p\u003e\n\u003cp\u003eThe FX820V EVO family is an air-cooled, 90° V-twin with pressurized lubrication, cast-iron cylinder liners, and a heavy-duty canister air filtration system. Kawasaki publishes \u003cstrong\u003e34.5 HP at 3,600 RPM\u003c\/strong\u003e and \u003cstrong\u003e822cc displacement\u003c\/strong\u003e for this series.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConfirm the complete engine specification before ordering.\u003c\/strong\u003e FX820A identifies the engine family; the AS00-S (or equivalent) specification identifies the configuration offered here. Shaft length, charging system output, and wiring can vary between specification codes.\u003c\/p\u003e\n\u003chr\u003e\n\n\u003ch2\u003eKawasaki FX820A-AS00-S Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Kawasaki\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvertised engine specification:\u003c\/strong\u003e FX820A-AS00-S (also known as FX820AAS00S \/ FX820A-(A)S00-S)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine family:\u003c\/strong\u003e FX Series \/ FX820V EVO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePublished family power:\u003c\/strong\u003e 34.5 HP at 3,600 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement:\u003c\/strong\u003e 822cc (50.2 cu. in.)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Air-cooled, 4-stroke, OHV 90° V-twin gasoline engine with EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrankshaft orientation:\u003c\/strong\u003e Vertical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvertised shaft diameter:\u003c\/strong\u003e 1-1\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvertised shaft length:\u003c\/strong\u003e 4-9\/32 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStarting system:\u003c\/strong\u003e Electric start\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging system:\u003c\/strong\u003e Typically 15–30 amp (confirm exact output with seller)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel system:\u003c\/strong\u003e Multi-port digital fuel injection with electric fuel pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLubrication:\u003c\/strong\u003e Pressurized lubrication with spin-on oil filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir filtration:\u003c\/strong\u003e Heavy-duty multi-stage dual-element canister filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMuffler:\u003c\/strong\u003e Not included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New, as listed by the seller\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eShaft dimensions, charging system amperage, and included components reflect the selected seller’s advertised configuration. Compare them with your original engine and confirm the complete code of the engine supplied.\u003c\/p\u003e\n\u003chr\u003e\n\n\u003ch2\u003eRiding Mower and Zero-Turn Engine Fitment\u003c\/h2\u003e\n\u003cp\u003eThis listing is organized around the \u003cstrong\u003eFX820A-AS00-S\u003c\/strong\u003e specification. An FX820V-equipped mower is a starting point for comparison, not automatic confirmation that this exact specification will fit.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine identification:\u003c\/strong\u003e Compare the model, full specification code, and serial number on your original engine label.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrankshaft:\u003c\/strong\u003e Confirm 1-1\/8\" diameter, usable length, keyway, and retaining-bolt thread. Measure from the same reference points used in the engine drawing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting and clearance:\u003c\/strong\u003e Check mounting holes, engine height, and clearance around the air cleaner, exhaust, starter, and EFI components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePTO clutch and drive pulley:\u003c\/strong\u003e Confirm shaft engagement, pulley position, and belt alignment. A 1\" clutch bore will not fit this shaft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical system:\u003c\/strong\u003e Match charging requirements, connector arrangement, and mower wiring. EFI models have additional fuel-system and throttle-control connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControls and exhaust:\u003c\/strong\u003e Verify throttle cable travel, fuel routing, and muffler compatibility. Canister air filter clearance must also be confirmed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis engine is commonly referenced for higher-end commercial zero-turns (including certain Bad Boy Rebel \/ Rebel X configurations). Always confirm the exact original specification with the seller or an authorized Kawasaki Engines dealer before ordering.\u003c\/p\u003e\n\u003chr\u003e\n\n\u003ch2\u003eWhat’s Included?\u003c\/h2\u003e\n\u003cp\u003eOne engine in the seller’s advertised FX820A-AS00-S configuration. \u003cstrong\u003eThe muffler is not included.\u003c\/strong\u003e Confirm whether a fuel pump, oil filter, and any harness or sensors are supplied, and which components must be transferred from your existing engine.\u003c\/p\u003e\n\u003chr\u003e\n\n\u003ch2\u003eBuy Through the Selected eBay Seller\u003c\/h2\u003e\n\u003cp\u003eUse the \u003cstrong\u003eBuy on eBay\u003c\/strong\u003e button to view the seller’s current price, stock, shipping options, and purchase terms. Payment, fulfillment, returns, and any warranty arrangements are handled through the seller’s offer. Price and availability may change.\u003c\/p\u003e\n\u003chr\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eDoes this replace every Kawasaki FX820V or FX820A engine?\u003c\/h3\u003e\n\u003cp\u003eNo. FX820 engines can have different specification codes, shaft lengths, and charging systems. Compare the complete code and physical requirements before choosing the AS00-S offer.\u003c\/p\u003e\n\n\u003ch3\u003eDoes this listing use a 1-inch or 1-1\/8-inch shaft?\u003c\/h3\u003e\n\u003cp\u003eThe selected seller advertises a \u003cstrong\u003e1-1\/8-inch diameter × 4-9\/32-inch shaft\u003c\/strong\u003e. It should not be treated as a direct replacement for a 1-inch shaft application.\u003c\/p\u003e\n\n\u003ch3\u003eIs this an EFI engine?\u003c\/h3\u003e\n\u003cp\u003eYes. The FX820A EVO series uses multi-port digital fuel injection. Confirm the seller’s listing matches the electrical and fuel-system requirements of your mower.\u003c\/p\u003e\n\n\u003ch3\u003eCan I reuse my existing PTO clutch?\u003c\/h3\u003e\n\u003cp\u003eOnly if its bore, mounting arrangement, and position match the 1-1\/8\" replacement shaft and your mower’s drive system.\u003c\/p\u003e\n\u003chr\u003e\n\n\u003cp\u003eNeed help identifying your existing engine? \u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eContact PTO Direct USA\u003c\/strong\u003e\u003c\/a\u003e with your mower model, serial number, and clear photos of the engine identification label.\u003c\/p\u003e\n\u003cp\u003eCompare other options in our \u003ca href=\"\/collections\/engines\"\u003e\u003cstrong\u003ereplacement engine collection\u003c\/strong\u003e\u003c\/a\u003e, or browse our \u003ca href=\"\/collections\/pto-clutches\"\u003e\u003cstrong\u003eelectric PTO clutch catalog\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003e\u003cstrong\u003eAffiliate disclosure:\u003c\/strong\u003e PTO Direct USA may earn a commission from qualifying purchases made through links on this page.\u003c\/small\u003e\u003c\/p\u003e","brand":"Kawasaki","offers":[{"title":"Default Title","offer_id":67986334581103,"sku":"ENGINE-FX820A-AS00-S","price":3843.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0957\/5058\/6735\/files\/engine-fx820aas00s-top.jpg?v=1793588714","url":"https:\/\/ptodirectusa.com\/products\/engine-kawasaki-fx820a-as00-s","provider":"PTO Direct USA","version":"1.0","type":"link"}