{"product_id":"pto-clutch-44-0770","title":"44-0770 \/ 54-0220 PTO Clutch for Toro \u0026 Lawn-Boy | 1\" Internal Keyway | X0491A","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003e44-0770 \/ 54-0220 electric PTO clutch replacement\u003c\/strong\u003e is an aftermarket clutch for select older \u003cstrong\u003eToro\u003c\/strong\u003e and \u003cstrong\u003eLawn-Boy\u003c\/strong\u003e mower applications using the \u003cstrong\u003e44-0770 \/ 54-0220\u003c\/strong\u003e clutch path.\u003c\/p\u003e\n\u003cp\u003eThis clutch uses a \u003cstrong\u003e1-inch bore with an internal machined keyway in the clutch hub\u003c\/strong\u003e, an approximately \u003cstrong\u003e5-5\/16-inch pulley\u003c\/strong\u003e, and \u003cstrong\u003eCCW rotation from the pulley side\u003c\/strong\u003e. It is associated with the \u003cstrong\u003eOgura MA-GT-TRO \/ MA-GT-TROC\u003c\/strong\u003e family and \u003cstrong\u003eXtreme X0491 \/ X0491A\u003c\/strong\u003e replacement path.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCritical keyway warning:\u003c\/strong\u003e Similar-looking PTO clutches exist with different key and hub arrangements. This listing is specifically for the clutch configuration with the \u003cstrong\u003einternal keyway machined into the 1-inch clutch bore\u003c\/strong\u003e. Match your original part number and inspect the bore\/key arrangement before ordering.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAftermarket electric PTO clutch assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Toro \/ Lawn-Boy Numbers:\u003c\/strong\u003e 44-0770, 54-0220\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eXtreme Cross-Reference:\u003c\/strong\u003e X0491, X0491A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrankshaft Bore:\u003c\/strong\u003e 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeyway Configuration:\u003c\/strong\u003e internal machined keyway in clutch bore\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePulley Diameter:\u003c\/strong\u003e approximately 5.313 inch \/ 5-5\/16 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotation:\u003c\/strong\u003e CCW from pulley side\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBelt Compatibility:\u003c\/strong\u003e 1\/2-inch or 5\/8-inch V-belt path on supported applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector:\u003c\/strong\u003e wire lead and connector configuration as shown in product photos\u003c\/li\u003e\n\u003cli\u003eIntegrated electric clutch and brake assembly\u003c\/li\u003e\n\u003cli\u003eFully assembled and ready to install after fitment verification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eCompatible Brands \u0026amp; Model Series\u003c\/h2\u003e\n\u003cp\u003eThis is a \u003cstrong\u003epart-number-first replacement\u003c\/strong\u003e for Toro and Lawn-Boy equipment using the 44-0770 \/ 54-0220 clutch path.\u003c\/p\u003e\n\u003ch3\u003eToro Applications\u003c\/h3\u003e\n\u003cp\u003ePublished Xtreme application data includes select:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eToro 11-32, 11-38, 11-42 and 11-44\u003c\/strong\u003e lawn tractors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToro 12-32\u003c\/strong\u003e lawn tractor\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eToro Groundsmaster 117 and 120\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eToro ProLine Series 120\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToro Pro Lawn Tractor \/ Front Engine Rider\u003c\/strong\u003e applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePublished Toro model numbers include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e30544, 30610, 30611\u003c\/li\u003e\n\u003cli\u003e57365, 57400, 57410\u003c\/li\u003e\n\u003cli\u003e57420, 57430, 59147\u003c\/li\u003e\n\u003cli\u003e30108, 30111, 30136\u003c\/li\u003e\n\u003cli\u003e30718, 30612TE, 30612\u003c\/li\u003e\n\u003cli\u003e30754, 30768, 57450\u003c\/li\u003e\n\u003cli\u003e57300, 30152, 57354\u003c\/li\u003e\n\u003cli\u003e57356, 57357, 57360\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eLawn-Boy Applications\u003c\/h3\u003e\n\u003cp\u003eUse this listing for select Lawn-Boy applications whose original clutch is marked \u003cstrong\u003e44-0770\u003c\/strong\u003e or \u003cstrong\u003e54-0220\u003c\/strong\u003e. Match the original clutch number and physical keyway configuration before ordering.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eReplaces OEM Part Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eToro:\u003c\/strong\u003e 44-0770, 54-0220\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLawn-Boy:\u003c\/strong\u003e 44-0770, 54-0220\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eAftermarket \u0026amp; Manufacturer Cross-Reference Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOgura:\u003c\/strong\u003e MA-GT-TRO, MAGTTRO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOgura:\u003c\/strong\u003e MA-GT-TROC, MAGTTROC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eXtreme:\u003c\/strong\u003e X0491, X0491A\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon Symptoms of a Failing PTO Clutch\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBlades will not engage when the PTO switch is activated\u003c\/li\u003e\n\u003cli\u003ePTO clutch clicks but the deck belt does not turn\u003c\/li\u003e\n\u003cli\u003eBlades engage when cold and stop after the mower heats up\u003c\/li\u003e\n\u003cli\u003eIntermittent blade engagement under load\u003c\/li\u003e\n\u003cli\u003eDeck belt slips, squeals, or smokes during engagement\u003c\/li\u003e\n\u003cli\u003eBurning smell or excessive heat near the clutch\u003c\/li\u003e\n\u003cli\u003eGrinding, bearing noise, or vibration from the clutch area\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 complete aftermarket electric PTO clutch assembly\u003c\/li\u003e\n\u003cli\u003eApproximately 5-5\/16-inch pulley\u003c\/li\u003e\n\u003cli\u003e1-inch clutch bore with internal machined keyway\u003c\/li\u003e\n\u003cli\u003ePre-installed bearing assembly\u003c\/li\u003e\n\u003cli\u003eEncapsulated electromagnetic coil\u003c\/li\u003e\n\u003cli\u003eIntegrated brake assembly\u003c\/li\u003e\n\u003cli\u003eWire lead and connector as shown in product photos\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy Buy From PTO Direct USA?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFast USA shipping\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/fitment-guarantee\"\u003e\u003cstrong\u003eFitment guarantee\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e1-year warranty\u003c\/li\u003e\n\u003cli\u003eFitment-first product descriptions\u003c\/li\u003e\n\u003cli\u003eClear keyway and part-number identification\u003c\/li\u003e\n\u003cli\u003eProduct photos that show the actual clutch configuration\u003c\/li\u003e\n\u003cli\u003eSupport for older and difficult-to-identify PTO clutch applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eNeed Help Confirming Fitment?\u003c\/h2\u003e\n\u003cp\u003eEmail \u003cstrong\u003esupport@ptodirectusa.com\u003c\/strong\u003e with your mower model number, original clutch number, and clear photos of the clutch bore, crankshaft\/key, pulley, connector, and anti-rotation setup.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eWhat PTO clutch replaces Toro 44-0770?\u003c\/h3\u003e\n\u003cp\u003eThis clutch is offered for select Toro applications using the \u003cstrong\u003e44-0770\u003c\/strong\u003e clutch path. Xtreme catalogs 44-0770 with its \u003cstrong\u003eX0491 \/ X0491A\u003c\/strong\u003e replacement family.\u003c\/p\u003e\n\u003ch3\u003eWhat PTO clutch replaces Toro 54-0220?\u003c\/h3\u003e\n\u003cp\u003eThis clutch is offered for select Toro applications using \u003cstrong\u003e54-0220\u003c\/strong\u003e. Match the original clutch number and internal-keyway configuration before ordering.\u003c\/p\u003e\n\u003ch3\u003eAre Lawn-Boy 44-0770 and 54-0220 part of this same clutch path?\u003c\/h3\u003e\n\u003cp\u003eYes. Published replacement data associates both \u003cstrong\u003eLawn-Boy 44-0770\u003c\/strong\u003e and \u003cstrong\u003e54-0220\u003c\/strong\u003e with this X0491 clutch family.\u003c\/p\u003e\n\u003ch3\u003eWhat is the keyway configuration?\u003c\/h3\u003e\n\u003cp\u003eThis clutch uses a \u003cstrong\u003e1-inch bore with an internal machined keyway in the clutch hub\u003c\/strong\u003e. Confirm that the original installation uses the matching crankshaft and separate drive-key arrangement.\u003c\/p\u003e\n\u003ch3\u003eWhat pulley diameter does this clutch use?\u003c\/h3\u003e\n\u003cp\u003eThe published replacement specification is approximately \u003cstrong\u003e5.313 inches \/ 5-5\/16 inches\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat direction does this clutch rotate?\u003c\/h3\u003e\n\u003cp\u003eThis clutch uses \u003cstrong\u003eCCW rotation from the pulley side\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eDoes this fit Toro Groundsmaster 117 or 120?\u003c\/h3\u003e\n\u003cp\u003eThe Xtreme X0491 application catalog includes select \u003cstrong\u003eToro Groundsmaster 117 and 120\u003c\/strong\u003e applications. Confirm the original clutch number and physical configuration before ordering.\u003c\/p\u003e\n\u003ch3\u003eIs this related to Ogura MA-GT-JD2?\u003c\/h3\u003e\n\u003cp\u003eYes. Current replacement data places \u003cstrong\u003eMA-GT-JD2\u003c\/strong\u003e, MA-GT-TRO, MA-GT-TROC, 44-0770, and 54-0220 within the same X0491 replacement family. If your original clutch is specifically marked MA-GT-JD2, see the dedicated \u003ca href=\"\/products\/pto-clutch-ma-gt-jd2\"\u003e\u003cstrong\u003eMA-GT-JD2 PTO clutch listing\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eCan I order this clutch by appearance alone?\u003c\/h3\u003e\n\u003cp\u003eNo. Pay particular attention to the \u003cstrong\u003einternal clutch-bore keyway\u003c\/strong\u003e. Similar-looking PTO clutches with a different key or hub arrangement should not be substituted simply because the bore and pulley dimensions look close.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eNeed installation help?\u003c\/strong\u003e Read the \u003ca href=\"\/blogs\/pto-clutch-guides\/pto-clutch-installation\"\u003e\u003cstrong\u003ePTO Clutch Installation Guide\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNeed a different Toro clutch?\u003c\/strong\u003e Browse the \u003ca href=\"\/collections\/toro-pto-clutches\"\u003e\u003cstrong\u003eToro PTO clutch collection\u003c\/strong\u003e\u003c\/a\u003e or the full \u003ca href=\"\/collections\/pto-clutches\"\u003e\u003cstrong\u003eelectric PTO clutch catalog\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e","brand":"PTO Direct USA","offers":[{"title":"Default Title","offer_id":53292852347247,"sku":"PTO-44-0770-hd","price":174.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0957\/5058\/6735\/files\/44-0770-internal-keyway-clutch.jpg?v=1786688649","url":"https:\/\/ptodirectusa.com\/products\/pto-clutch-44-0770","provider":"PTO Direct USA","version":"1.0","type":"link"}