{"title":"Lawn Mower Engines Replacements","description":"\u003cp\u003eExplore new replacement engines for select riding lawn mowers and zero-turn mowers. Compare engine model numbers, crankshaft specifications and application details to find the right replacement for your equipment.\u003c\/p\u003e\n\u003ch2\u003eFind the Right Replacement Engine\u003c\/h2\u003e\n\n\u003cp\u003eStart with your original engine’s complete model and specification or type number, along with your mower’s model and serial number. Matching horsepower alone does not confirm that a replacement engine will fit.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCrankshaft:\u003c\/strong\u003e Compare shaft orientation, diameter, length and keyway configuration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Confirm the mounting pattern and clearance around the engine.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnections:\u003c\/strong\u003e Check starting and electrical requirements, controls and fuel connections.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExhaust:\u003c\/strong\u003e Verify muffler placement, exhaust direction and clearance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eReview the individual listing for application details and included components. If your original engine number differs, confirm the replacement with the seller before ordering.\u003c\/p\u003e\n\n\u003cp\u003eNeed help identifying your engine? \u003ca href=\"\/pages\/contact\"\u003eContact PTO Direct USA\u003c\/a\u003e with clear photographs of the engine identification label and your equipment’s model and serial numbers.\u003c\/p\u003e","products":[{"product_id":"engine-fr730v-as40","title":"Kawasaki FR730V-AS40 Engine — 24 HP, 1-Inch Vertical Shaft","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eRestore your mower’s power with the \u003cstrong\u003eKawasaki FR730V-AS40 vertical-shaft engine\u003c\/strong\u003e. This \u003cstrong\u003e24 HP, 726cc V-twin\u003c\/strong\u003e is offered for riding mower and zero-turn repower applications requiring a \u003cstrong\u003e1-inch diameter × 3-5\/32-inch crankshaft\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe engine features \u003cstrong\u003eelectric start, a 15-amp alternator, overhead valves and pressurized lubrication\u003c\/strong\u003e. Match the complete engine specification, shaft dimensions and mower configuration before ordering.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine specification:\u003c\/strong\u003e Kawasaki FR730V-AS40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 24 HP maximum at 3,600 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement:\u003c\/strong\u003e 726cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e air-cooled, 4-stroke OHV V-twin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrankshaft:\u003c\/strong\u003e vertical, 1-inch diameter × 3-5\/32-inch length\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 15-amp alternator\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLubrication:\u003c\/strong\u003e pressurized lubrication system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e cast-iron cylinder liners\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition:\u003c\/strong\u003e electronic spark ignition with automatic compression release\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\u003ch2\u003eKawasaki FR730V-AS40 Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; table-layout:fixed;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width:42%; padding:12px; border:1px solid #dfe3e8; text-align:left; background:#f6f8fa;\"\u003eManufacturer \/ Series\u003c\/th\u003e\n\u003ctd style=\"padding:12px; border:1px solid #dfe3e8;\"\u003eKawasaki \/ FR Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:12px; border:1px solid #dfe3e8; text-align:left; background:#f6f8fa;\"\u003eEngine Specification\u003c\/th\u003e\n\u003ctd style=\"padding:12px; border:1px solid #dfe3e8;\"\u003eFR730V-AS40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:12px; border:1px solid #dfe3e8; text-align:left; background:#f6f8fa;\"\u003eDisplacement\u003c\/th\u003e\n\u003ctd style=\"padding:12px; border:1px solid #dfe3e8;\"\u003e726cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:12px; border:1px solid #dfe3e8; text-align:left; background:#f6f8fa;\"\u003eMaximum Power\u003c\/th\u003e\n\u003ctd style=\"padding:12px; border:1px solid #dfe3e8;\"\u003e24 HP at 3,600 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:12px; border:1px solid #dfe3e8; text-align:left; background:#f6f8fa;\"\u003eCrankshaft Orientation\u003c\/th\u003e\n\u003ctd style=\"padding:12px; border:1px solid #dfe3e8;\"\u003eVertical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:12px; border:1px solid #dfe3e8; text-align:left; background:#f6f8fa;\"\u003eCrankshaft Dimensions\u003c\/th\u003e\n\u003ctd style=\"padding:12px; border:1px solid #dfe3e8;\"\u003e1-inch diameter × 3-5\/32-inch length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:12px; border:1px solid #dfe3e8; text-align:left; background:#f6f8fa;\"\u003eStarting \/ Charging\u003c\/th\u003e\n\u003ctd style=\"padding:12px; border:1px solid #dfe3e8;\"\u003eElectric start \/ 15-amp alternator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:12px; border:1px solid #dfe3e8; text-align:left; background:#f6f8fa;\"\u003eCooling\u003c\/th\u003e\n\u003ctd style=\"padding:12px; border:1px solid #dfe3e8;\"\u003eForced-air cooling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:12px; border:1px solid #dfe3e8; text-align:left; background:#f6f8fa;\"\u003eFuel Delivery\u003c\/th\u003e\n\u003ctd style=\"padding:12px; border:1px solid #dfe3e8;\"\u003eCarburetor with fuel shut-off solenoid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:12px; border:1px solid #dfe3e8; text-align:left; background:#f6f8fa;\"\u003eCondition\u003c\/th\u003e\n\u003ctd style=\"padding:12px; border:1px solid #dfe3e8;\"\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\u003ch2\u003eRiding Mower \u0026amp; Zero-Turn Repower Applications\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFR730V-AS40\u003c\/strong\u003e is offered for riding mower and zero-turn applications using the specified vertical crankshaft. Repower compatibility depends on the complete installation, including the engine mounting pattern, shaft geometry, pulley or PTO clutch position, electrical connections, controls and exhaust clearance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUse the full engine specification code when comparing replacements.\u003c\/strong\u003e FR730V identifies the engine family; the AS40 specification identifies the configuration offered here. Engines sharing the FR730V name or horsepower rating can have different installation requirements.\u003c\/p\u003e\n\n\u003ch3\u003eBefore Ordering\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRecord your mower’s complete model and serial numbers and photograph the original engine identification label.\u003c\/li\u003e\n\u003cli\u003eConfirm the 1-inch crankshaft diameter, 3-5\/32-inch shaft length, keyway and retaining-bolt requirements.\u003c\/li\u003e\n\u003cli\u003eCompare the mounting pattern, PTO clutch or pulley position and belt alignment.\u003c\/li\u003e\n\u003cli\u003eCheck the wiring connections, charging requirements, throttle and choke controls.\u003c\/li\u003e\n\u003cli\u003eConfirm the muffler arrangement, exhaust clearance and which accessories are included or must be transferred.\u003c\/li\u003e\n\u003cli\u003eFor a different original engine specification, confirm the repower application with the seller or an authorized Kawasaki Engines dealer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\u003ch2\u003eOrdering Information\u003c\/h2\u003e\n\u003cp\u003eUse the \u003cstrong\u003ebuy button above\u003c\/strong\u003e to view the current seller offer, price, availability and shipping details. This engine is sold and fulfilled by an independent eBay seller. Review the current listing for included components, returns and warranty terms.\u003c\/p\u003e\n\u003cp\u003ePTO Direct USA may earn a commission from qualifying purchases through our affiliate link.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003eNeed Help Identifying Your Engine?\u003c\/h2\u003e\n\u003cp\u003eSend photographs of your engine identification label and mower model tag through our \u003ca href=\"\/pages\/parts-desk\"\u003e\u003cstrong\u003eParts Desk\u003c\/strong\u003e\u003c\/a\u003e, or text \u003cstrong\u003e541-361-8778\u003c\/strong\u003e. You can also \u003ca href=\"\/collections\/engines\"\u003ebrowse our replacement engine collection\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment support before and after purchase.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Kawasaki","offers":[{"title":"Default Title","offer_id":53435205484911,"sku":"ENGINE-FR730V-BS40","price":1599.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0957\/5058\/6735\/files\/kawasaki-fr730V-bs40-engine-shopbot.jpg?v=1788683351"},{"product_id":"engine-44s977-0033-g1","title":"Briggs \u0026 Stratton 44S977-0033-G1 Engine — 25 HP, 1-1\/8\" Shaft","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eBriggs \u0026amp; Stratton 44S977-0033-G1 replacement engine\u003c\/strong\u003e is a \u003cstrong\u003e25 gross HP, 724cc Professional Series V-twin\u003c\/strong\u003e for select riding mower, lawn tractor and zero-turn repower applications. It features a \u003cstrong\u003evertical crankshaft measuring 1-1\/8 inches in diameter × 4-19\/64 inches long\u003c\/strong\u003e, electric start, ReadyStart and full-pressure lubrication.\u003c\/p\u003e\n\u003cp\u003eReplacement references include \u003cstrong\u003e44S877-0001-G1\u003c\/strong\u003e and \u003cstrong\u003e44Q777-3136-G5\u003c\/strong\u003e. Specific Husqvarna and Craftsman mower references are listed below to help identify the original engine and confirm the installation requirements.\u003c\/p\u003e\n\n\u003ch2\u003eEngine Specifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEngine number:\u003c\/strong\u003e 44S977-0033-G1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Briggs \u0026amp; Stratton Professional Series\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 25 gross HP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisplacement:\u003c\/strong\u003e 724cc\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e V-twin, overhead valve, vertical shaft\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCrankshaft:\u003c\/strong\u003e 1-1\/8\" diameter × 4-19\/64\" length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKeyway:\u003c\/strong\u003e 1\/4\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCrankshaft end:\u003c\/strong\u003e Drilled and tapped 7\/16\"-20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStarting:\u003c\/strong\u003e Electric start with ReadyStart\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCharging system:\u003c\/strong\u003e 16 amp\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuel system:\u003c\/strong\u003e Gasoline with fuel pump\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLubrication:\u003c\/strong\u003e Full-pressure lubrication with oil filter\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCylinder construction:\u003c\/strong\u003e Dura-Bore cast iron sleeves\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eReplacement Engine References\u003c\/h2\u003e\n\u003cp\u003eEngine supplier cross-reference information lists \u003cstrong\u003e44S977-0033-G1\u003c\/strong\u003e as a replacement for the following complete engine numbers:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e44S877-0001-G1\u003c\/li\u003e\n  \u003cli\u003e44Q777-3136-G5\u003c\/li\u003e\n  \u003cli\u003e44Q777-0136-G1\u003c\/li\u003e\n  \u003cli\u003e44Q777-0006-G1\u003c\/li\u003e\n  \u003cli\u003e44P777-0016-G1\u003c\/li\u003e\n  \u003cli\u003e44P777-0016-E1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMatch the complete engine model and type, including the suffix. Installation may require transferring mower-specific components or adapting controls and wiring.\u003c\/p\u003e\n\n\u003ch2\u003eHusqvarna and Craftsman Mower Application References\u003c\/h2\u003e\n\u003cp\u003eThe following mower manuals identify original Briggs engines associated with this replacement family through engine parts catalogs. These are \u003cstrong\u003erepower candidates requiring seller confirmation\u003c\/strong\u003e of the exact engine number and installation details.\u003c\/p\u003e\n\n\u003cdiv style=\"max-width: 100%; overflow-x: auto;\"\u003e\n  \u003ctable style=\"width: 100%; border-collapse: collapse; text-align: left;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"col\" style=\"padding: 10px; border: 1px solid #dce3ec;\"\u003eMower reference\u003c\/th\u003e\n        \u003cth scope=\"col\" style=\"padding: 10px; border: 1px solid #dce3ec;\"\u003eOriginal Briggs engine to match\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #dce3ec;\"\u003eHusqvarna GTH2448T, model 917.279260\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #dce3ec;\"\u003e445677-0476-E1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #dce3ec;\"\u003eHusqvarna YTH2454, manual reference 287581\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #dce3ec;\"\u003e445677-0479-E1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #dce3ec;\"\u003eCraftsman 917.276080, 48-inch garden tractor\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #dce3ec;\"\u003e446777-0244-E1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #dce3ec;\"\u003eCraftsman 917.276081, 48-inch garden tractor\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #dce3ec;\"\u003e446777-0244-E1\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cstrong\u003eMatch the engine currently installed.\u003c\/strong\u003e Mower names can cover different engines and production versions, and older equipment may already have been repowered. Send the seller your engine label and mower identification tag before ordering.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Details to Confirm\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShaft and PTO fit:\u003c\/strong\u003e Compare shaft diameter, length, keyway, retaining-bolt thread, clutch position and pulley alignment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting and clearance:\u003c\/strong\u003e Check the engine mounting pattern and clearance around the hood, air cleaner, oil filter and exhaust.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectrical system:\u003c\/strong\u003e Confirm the starter, charging connection, fuel-solenoid connection and ignition shutdown wiring match the mower. Some earlier replacement instructions call for transferring a six-pin harness.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControls:\u003c\/strong\u003e Confirm how the mower's throttle controls work with this ReadyStart engine and whether the original manual choke control is needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExhaust and supplied parts:\u003c\/strong\u003e Ask which muffler, exhaust hardware and installation components are included. Original mower-specific exhaust parts may need to be reused or replaced.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eIs 44S977-0033-G1 the same as 44S977-0032-G1?\u003c\/h3\u003e\n\u003cp\u003eNo. The \u003cstrong\u003e0033\u003c\/strong\u003e version has a \u003cstrong\u003e1-1\/8\" × 4-19\/64\" shaft\u003c\/strong\u003e. Briggs lists the \u003cstrong\u003e0032\u003c\/strong\u003e version with a \u003cstrong\u003e1\" × 3-5\/32\" shaft\u003c\/strong\u003e. That difference affects the PTO clutch, drive pulley and installation.\u003c\/p\u003e\n\n\u003ch3\u003eCan I select this engine by horsepower alone?\u003c\/h3\u003e\n\u003cp\u003eUse the original engine's complete model and type number first. Horsepower, mower brand and deck size alone do not establish compatibility.\u003c\/p\u003e\n\n\u003ch3\u003eIs this a complete mower conversion kit?\u003c\/h3\u003e\n\u003cp\u003eThis listing is for a replacement engine. Check the eBay seller's description for the included components and any additional parts required for your mower.\u003c\/p\u003e\n\n\u003ch2\u003eParts Help From PTO Direct USA\u003c\/h2\u003e\n\u003cdiv style=\"box-sizing: border-box; max-width: 100%; margin: 16px 0; padding: 20px; border: 1px solid #dce3ec; border-left: 4px solid #d95818; border-radius: 12px; background: #f5f8fc; color: #18283e; overflow-wrap: anywhere;\"\u003e\n  \u003ch3 style=\"margin: 0 0 10px; font-size: 21px; line-height: 1.3;\"\u003eText a Photo. Get Parts Help.\u003c\/h3\u003e\n  \u003cp style=\"margin: 0 0 14px;\"\u003eText your \u003cstrong\u003eengine model, type and code label\u003c\/strong\u003e and your mower's \u003cstrong\u003emodel and serial tag\u003c\/strong\u003e to \u003cstrong\u003e541-361-8778\u003c\/strong\u003e. Include photos of the crankshaft, PTO clutch, wiring connectors and exhaust arrangement.\u003c\/p\u003e\n  \u003ca href=\"\/pages\/parts-desk\" style=\"display: inline-block; box-sizing: border-box; max-width: 100%; padding: 12px 18px; border-radius: 8px; background: #17365b; color: #fff; font-weight: bold; line-height: 1.4; text-align: center; text-decoration: none;\"\u003eOpen the Parts Desk\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cstrong\u003eFitment support before and after purchase.\u003c\/strong\u003e Final engine compatibility and included installation parts should be confirmed with the selling dealer.\u003c\/p\u003e\n\n\u003cp\u003eCompare other options in our \u003ca href=\"\/collections\/engines\"\u003ereplacement mower engine collection\u003c\/a\u003e, or browse \u003ca href=\"\/collections\/pto-clutches\"\u003eelectric PTO clutch replacements\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eAffiliate disclosure: This engine is sold and fulfilled by an independent seller on eBay. PTO Direct USA may earn a commission if you buy through the affiliate link. Check the seller listing for current price, availability, shipping, returns and warranty terms.\u003c\/em\u003e\u003c\/p\u003e","brand":"Briggs \u0026 Stratton","offers":[{"title":"Default Title","offer_id":53520805298543,"sku":"ENGINE-44S977-0033-G1","price":1249.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0957\/5058\/6735\/files\/briggs-44s977-0033-g1-engine.jpg?v=1790152942"},{"product_id":"engine-kohler-kt740-3097","title":"KT740-3097 Kohler 7000 Series Engine — 25 HP, 1-inch Vertical Shaft","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFind a replacement powerplant for a compatible riding mower or zero-turn mower with the \u003cstrong\u003eKohler KT740-3097 7000 Series engine\u003c\/strong\u003e. This seller-listed new engine is advertised at \u003cstrong\u003e25 HP\u003c\/strong\u003e with a \u003cstrong\u003e1-inch diameter × 3-5\/32-inch vertical crankshaft\u003c\/strong\u003e and a \u003cstrong\u003e15-amp alternator\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe KT740 family uses an \u003cstrong\u003eair-cooled, four-cycle, OHV V-twin design\u003c\/strong\u003e with cast-iron cylinder liners and pressure lubrication with a full-flow oil filter. The complete \u003cstrong\u003eKT740-3097\u003c\/strong\u003e specification identifies the engine offered here.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Match the complete engine specification and your mower's requirements before ordering. A matching horsepower rating or shaft diameter alone does not establish compatibility.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKohler KT740-3097 Engine Specifications\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003eManufacturer \/ Series\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eKohler \/ 7000 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003eModel and Specification\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eKT740-3097\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003ePublished KT740 Power Rating\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e25 HP at 3,600 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003eAdvertised Displacement\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e725cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003eEngine Design\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eFour-cycle gasoline, OHV V-twin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003eCrankshaft Orientation\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eVertical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003eAdvertised Crankshaft Dimensions\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e1-inch diameter × 3-5\/32-inch length, keyed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003eAdvertised Crankshaft End Thread\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e7\/16-20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003eStarting System\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eElectric start\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003eAdvertised Charging System\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e15-amp alternator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003eCooling \/ Lubrication\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eAir cooling \/ pressure lubrication with full-flow oil filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003eCondition\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eNew, as listed by the seller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch2\u003eIncluded Components\u003c\/h2\u003e\n\u003cp\u003eThe seller identifies the following components and features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eKohler KT740-3097 engine assembly\u003c\/li\u003e\n\u003cli\u003e15-amp alternator\u003c\/li\u003e\n\u003cli\u003eOil filter and fuel pump\u003c\/li\u003e\n\u003cli\u003eFuel shut-off solenoid\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMuffler and fuel tank are not included.\u003c\/strong\u003e Confirm the exact wiring connectors, throttle and choke arrangement, exhaust components, and installation hardware in the current seller's offer.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eRiding Mower \u0026amp; Zero-Turn Engine Fitment\u003c\/h2\u003e\n\u003cp\u003eStart with the original engine's \u003cstrong\u003emodel, specification, and serial number\u003c\/strong\u003e. An existing KT740 label without its specification suffix is not enough to select a replacement.\u003c\/p\u003e\n\u003cp\u003eFor equipment originally using \u003cstrong\u003eKT740-3097\u003c\/strong\u003e, compare the identification label and installed configuration with the seller's engine photos. If your original specification differs, have a qualified engine dealer or repower specialist confirm the application.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrankshaft:\u003c\/strong\u003e Compare diameter, length, keyway, end thread, and shaft measurement reference points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting and clearance:\u003c\/strong\u003e Confirm the mounting pattern, air-cleaner clearance, hood clearance, and exhaust routing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical system:\u003c\/strong\u003e Match starter connections, charging requirements, fuel-solenoid wiring, and the mower's safety circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControls:\u003c\/strong\u003e Confirm the throttle cable and choke configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePTO clutch and drive pulley:\u003c\/strong\u003e Check shaft engagement, pulley position, spacers, retaining hardware, and belt alignment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis engine uses a 1-inch crankshaft.\u003c\/strong\u003e A clutch with a 1-1\/8-inch bore does not directly match this shaft. Compare your existing clutch and drive components before planning the installation.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eBefore the First Start\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe seller states that the engine ships without oil.\u003c\/strong\u003e Add the correct oil and verify the level before starting. Follow the applicable \u003ca href=\"https:\/\/techcomm.rehlko.com\/techcomm\/pdf\/32_590_29_AMERICAS.pdf\"\u003emanufacturer's owner's manual\u003c\/a\u003e for preparation and operation.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eDoes this replace every Kohler KT740?\u003c\/h3\u003e\n\u003cp\u003eNo. The specification suffix matters. Compare the complete engine code and installation requirements before choosing this KT740-3097.\u003c\/p\u003e\n\u003ch3\u003eDoes it include a muffler or fuel tank?\u003c\/h3\u003e\n\u003cp\u003eNo. The seller lists this engine without a muffler or fuel tank. Confirm whether your existing components can be transferred or whether different components are required.\u003c\/p\u003e\n\u003ch3\u003eHow do I order this engine?\u003c\/h3\u003e\n\u003cp\u003eUse the Buy button on this page to view the seller's eBay listing. Review the final price, shipping, availability, included components, and return and warranty terms before ordering.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eNeed help identifying your existing engine or PTO clutch? \u003ca href=\"\/pages\/contact\"\u003eContact PTO Direct USA\u003c\/a\u003e with clear photos of the engine label, mower identification tag, and clutch label. You can also \u003ca href=\"\/collections\/engines\"\u003ebrowse our replacement engine collection\u003c\/a\u003e or \u003ca href=\"\/collections\/pto-clutches\"\u003ecompare electric PTO clutches\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAffiliate disclosure:\u003c\/strong\u003e This engine is sold and fulfilled by the linked eBay seller. PTO Direct USA may earn a commission when you buy through our affiliate link, at no additional cost to you.\u003c\/p\u003e","brand":"Kohler","offers":[{"title":"Default Title","offer_id":67692386779503,"sku":"ENGINE-KT740-3097","price":1184.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0957\/5058\/6735\/files\/engines-kohler-kt740-3097-main.jpg?v=1791434305"},{"product_id":"engine-kawasaki-fr691v-s00-s","title":"Kawasaki FR691V-S00-S Engine | 23 HP, 1-Inch Vertical Shaft","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFind a replacement powerplant for your riding mower or zero-turn with the \u003cstrong\u003eKawasaki FR691V-S00-S vertical-shaft engine\u003c\/strong\u003e. The selected seller advertises this new engine with a \u003cstrong\u003e1-inch diameter × 3-5\/32-inch crankshaft\u003c\/strong\u003e, electric start and a \u003cstrong\u003e15-amp charging system\u003c\/strong\u003e. A muffler is not included.\u003c\/p\u003e\n\u003cp\u003eKawasaki publishes \u003cstrong\u003e23.0 HP at 3,600 RPM\u003c\/strong\u003e and \u003cstrong\u003e726cc displacement\u003c\/strong\u003e for the FR691V family. Its OHV V-twin design features pressurized lubrication, cast-iron cylinder liners, electronic ignition and automatic compression release.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConfirm the complete engine specification before ordering.\u003c\/strong\u003e FR691V identifies the engine family; it does not establish shaft dimensions, wiring or fitment for every mower equipped with an FR691V.\u003c\/p\u003e\n\u003chr\u003e\n\n\u003ch2\u003eKawasaki FR691V-S00-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 FR691V-S00-S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine family:\u003c\/strong\u003e FR Series \/ FR691V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePublished family power:\u003c\/strong\u003e 23.0 HP at 3,600 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement:\u003c\/strong\u003e 726cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Air-cooled, 4-stroke, OHV V-twin gasoline engine\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 inch \/ 25.4mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvertised shaft length:\u003c\/strong\u003e 3-5\/32 inches \/ 80mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStarting system:\u003c\/strong\u003e Electric Bendix starter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvertised charging system:\u003c\/strong\u003e 15 amp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControls:\u003c\/strong\u003e Separate throttle and choke controls\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, controls and included components above reflect the selected seller’s advertised S00-S 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 \u003cstrong\u003eFR691V-S00-S\u003c\/strong\u003e, rather than a broad mower-model list. An FR691V-equipped mower is a starting point for comparison, not automatic confirmation that this 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 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 and starter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePTO clutch and drive pulley:\u003c\/strong\u003e Confirm shaft engagement, pulley position and belt alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical system:\u003c\/strong\u003e Match the charging requirements, connector arrangement and mower wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControls and exhaust:\u003c\/strong\u003e Verify throttle and choke cable travel, fuel routing and muffler compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf your original specification differs, have the seller or an authorized Kawasaki Engines dealer confirm the repower application before ordering. No individual mower model is confirmed by this listing.\u003c\/p\u003e\n\u003chr\u003e\n\n\u003ch2\u003eWhat’s Included?\u003c\/h2\u003e\n\u003cp\u003eOne engine in the seller’s advertised FR691V-S00-S configuration. \u003cstrong\u003eThe muffler is not included.\u003c\/strong\u003e Confirm supplied accessories and any components that must be transferred from your existing engine with the seller.\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. The selected offer is from \u003cstrong\u003eEquipatron\u003c\/strong\u003e. The seller states that this engine is \u003cstrong\u003enot available to ship to California\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003ePayment, 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 FR691V engine?\u003c\/h3\u003e\n\u003cp\u003eNo. FR691V engines can have different specification codes and configurations. Compare the complete code and physical requirements before choosing the S00-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-inch diameter × 3-5\/32-inch shaft\u003c\/strong\u003e. It should not be treated as a direct replacement for a 1-1\/8-inch shaft application.\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 replacement shaft and your mower’s drive system. A matching bore alone does not confirm the complete installation.\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":67692715180399,"sku":"ENGINE-FR691V-S00-S-BS40","price":2159.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0957\/5058\/6735\/files\/engines-kawasaki-fr691v-main.jpg?v=1791435598"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0957\/5058\/6735\/collections\/lawn-mower-engines-robot-pto-direct-usa.jpg?v=1788681605","url":"https:\/\/ptodirectusa.com\/collections\/engines.oembed","provider":"PTO Direct USA","version":"1.0","type":"link"}