{"product_id":"husqvarna-521981501-18-inch-gator-blade-genuine-oem-replacement-mower-blade","title":"Husqvarna 521981501 18-Inch Gator Blade – Genuine OEM Replacement Mower Blade","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-8 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 521981501\u003cbr\u003e\u003cstrong\u003eCategory:\u003c\/strong\u003e Zero-Turn Mower Blades, Mulching Blades \u0026amp; Cutting Deck Parts\u003cbr\u003e\u003cstrong\u003eType:\u003c\/strong\u003e 18-Inch Gator Blade – Genuine OEM Replacement Mower Blade\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eThe \u003cstrong\u003eHusqvarna 521981501 18-Inch Gator Blade\u003c\/strong\u003e is a genuine OEM replacement cutting blade designed for select \u003cstrong\u003eHusqvarna zero-turn mowers and compatible 52-inch cutting deck applications\u003c\/strong\u003e. Husqvarna's official illustrated parts documentation identifies \u003cstrong\u003e521981501\u003c\/strong\u003e as \u003cstrong\u003e“BLADE, 18\" GATOR”\u003c\/strong\u003e and specifies a quantity of three on applicable mower deck configurations. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 521981501\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Husqvarna\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Gator Mower Blade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Description:\u003c\/strong\u003e Blade, 18\" Gator\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlade Length:\u003c\/strong\u003e 18\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlade Style:\u003c\/strong\u003e Gator \/ Mulching\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Mower Deck Cutting Component\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Zero-Turn Lawn Mower\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Brand:\u003c\/strong\u003e Husqvarna\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumented Models:\u003c\/strong\u003e MZ5225 \/ MZT52\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumented Deck Application:\u003c\/strong\u003e 52\" Cutting Deck\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlades Required for Applicable 52\" Deck:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Star Center\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Mower Deck \/ Cutting System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement Type:\u003c\/strong\u003e Direct OEM Replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Status:\u003c\/strong\u003e Genuine Husqvarna OEM Part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 Blade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 705788537402\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number Reference:\u003c\/strong\u003e 521981501\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHusqvarna parts sources consistently identify \u003cstrong\u003e521981501\u003c\/strong\u003e as a genuine \u003cstrong\u003e18-inch Gator blade\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Husqvarna OEM replacement mower blade\u003c\/li\u003e\n\u003cli\u003eFactory-designated \u003cstrong\u003e18\" Gator Blade\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDesigned for select Husqvarna zero-turn mowers\u003c\/li\u003e\n\u003cli\u003eCompatible with documented 52-inch mower deck applications\u003c\/li\u003e\n\u003cli\u003eGator-style cutting profile\u003c\/li\u003e\n\u003cli\u003eDesigned for effective grass cutting and clipping processing\u003c\/li\u003e\n\u003cli\u003eSuitable for compatible mulching configurations\u003c\/li\u003e\n\u003cli\u003eHelps circulate and recut grass clippings within the mower deck\u003c\/li\u003e\n\u003cli\u003eHelps restore cutting performance when replacing worn blades\u003c\/li\u003e\n\u003cli\u003eManufactured for the applicable Husqvarna spindle and deck configuration\u003c\/li\u003e\n\u003cli\u003eFactory-style 18-inch blade dimensions\u003c\/li\u003e\n\u003cli\u003eStar-style center mounting configuration\u003c\/li\u003e\n\u003cli\u003eDesigned to maintain proper blade positioning and deck clearance\u003c\/li\u003e\n\u003cli\u003eSuitable for routine mower deck maintenance\u003c\/li\u003e\n\u003cli\u003eIdeal replacement for dull, worn, bent, chipped, cracked, or damaged blades\u003c\/li\u003e\n\u003cli\u003eDirect replacement for equipment requiring \u003cstrong\u003e521981501\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eGenuine OEM blade rather than an unspecified aftermarket substitute\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eDocumented Applications\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eHusqvarna 521981501 18-Inch Gator Blade\u003c\/strong\u003e is documented for select Husqvarna zero-turn mower applications, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eHusqvarna MZ5225\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHusqvarna MZT52\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eSelect Husqvarna 52-inch zero-turn mower decks\u003c\/li\u003e\n\u003cli\u003eCompatible 52-inch mulching configurations\u003c\/li\u003e\n\u003cli\u003eMower decks specifying three 18-inch Gator blades\u003c\/li\u003e\n\u003cli\u003eOEM replacement applications requiring \u003cstrong\u003e521981501\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHusqvarna's official MZ5225 parts diagram lists \u003cstrong\u003ethree 521981501 18-inch Gator blades\u003c\/strong\u003e in the accessories\/mulching configuration. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA separate parts reference specifically lists the genuine \u003cstrong\u003e521981501 18\" Gator Blade\u003c\/strong\u003e as fitting the \u003cstrong\u003eHusqvarna MZT52\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e52-Inch Deck Configuration\u003c\/h2\u003e\n\u003cp\u003eOn applicable 52-inch mower decks, \u003cstrong\u003ethree 18-inch blades\u003c\/strong\u003e work together to provide coverage across the deck's cutting width. Husqvarna's MZ5225 documentation specifies:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 521981501\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDescription:\u003c\/strong\u003e Blade, 18\" Gator\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity Required:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis listing is for \u003cstrong\u003eone blade unless otherwise specified\u003c\/strong\u003e, so three individual blades would be required when replacing the complete set on a documented three-blade deck.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eGator Blade Design\u003c\/h2\u003e\n\u003cp\u003eGator-style mower blades are commonly used for mulching and clipping-management applications. The blade's profile helps move grass clippings within the mower deck so they can be cut into smaller pieces before being discharged or returned to the lawn.\u003c\/p\u003e\n\u003cp\u003eFor best results, the blade should be used only on mower and deck configurations specifically approved for \u003cstrong\u003e521981501\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAn Oregon Gator G5 replacement cross-reference for Husqvarna \u003cstrong\u003e521981501\u003c\/strong\u003e specifies an 18-inch blade with a five-point star mounting configuration, further confirming the basic blade dimensions and mounting style associated with this OEM application. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify compatibility with your exact Husqvarna mower model, product number, serial number, cutting deck size, spindle configuration, and production revision before ordering.\u003c\/li\u003e\n\u003cli\u003eHusqvarna identifies \u003cstrong\u003e521981501\u003c\/strong\u003e as \u003cstrong\u003e“BLADE, 18\" GATOR.”\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eMatch \u003cstrong\u003epart number 521981501\u003c\/strong\u003e directly with the number shown in your mower's illustrated parts diagram or OEM documentation.\u003c\/li\u003e\n\u003cli\u003eThis is an \u003cstrong\u003e18-inch Gator-style mower blade\u003c\/strong\u003e intended for specific compatible mower deck configurations.\u003c\/li\u003e\n\u003cli\u003eThe Husqvarna MZ5225 parts diagram specifies \u003cstrong\u003ethree blades\u003c\/strong\u003e for the applicable configuration. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eThis listing is for \u003cstrong\u003eone blade unless otherwise specified\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eDo not assume that three blades are included simply because an applicable mower deck requires three.\u003c\/li\u003e\n\u003cli\u003eDo not select a replacement blade based solely on overall length or appearance.\u003c\/li\u003e\n\u003cli\u003eMower blades can differ in \u003cstrong\u003elength, width, thickness, center-hole configuration, lift profile, cutting geometry, offset, and rotation requirements\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eVerify the star mounting configuration against your existing spindle before installation.\u003c\/li\u003e\n\u003cli\u003eDo not substitute a blade with an incompatible center-hole pattern.\u003c\/li\u003e\n\u003cli\u003eInspect all blades on a multi-blade deck when replacing one damaged or excessively worn blade.\u003c\/li\u003e\n\u003cli\u003eFor consistent cutting and reduced vibration, blades installed on the same deck should be in comparable serviceable condition.\u003c\/li\u003e\n\u003cli\u003eInspect the blade spindle, spindle bearings, mounting hardware, washers, adapters, and surrounding mower deck components when replacing the blade.\u003c\/li\u003e\n\u003cli\u003eIf a blade was damaged by striking a rock, stump, curb, or other solid object, inspect the spindle and deck for corresponding impact damage.\u003c\/li\u003e\n\u003cli\u003eNever straighten and reuse a severely bent mower blade.\u003c\/li\u003e\n\u003cli\u003eReplace blades that are cracked, deeply chipped, excessively worn, or otherwise structurally compromised.\u003c\/li\u003e\n\u003cli\u003eIf sharpening a serviceable blade, maintain the original cutting profile and ensure the blade remains properly balanced.\u003c\/li\u003e\n\u003cli\u003eAn unbalanced blade can create excessive vibration and accelerate spindle, bearing, and mower deck wear.\u003c\/li\u003e\n\u003cli\u003eInstall the blade in the correct factory orientation with the cutting edges and lift surfaces positioned as specified by Husqvarna.\u003c\/li\u003e\n\u003cli\u003eMake sure the blade is fully seated against the spindle mounting surface before tightening the hardware.\u003c\/li\u003e\n\u003cli\u003eTighten blade hardware to the mower manufacturer's specified torque.\u003c\/li\u003e\n\u003cli\u003eAfter installation, verify adequate clearance between all three blades and surrounding deck components before operating the mower.\u003c\/li\u003e\n\u003cli\u003eNever operate the mower with damaged, loose, incorrectly installed, or improperly balanced blades.\u003c\/li\u003e\n\u003cli\u003eShut off the mower, engage the parking brake, remove the ignition key, disconnect the spark plug or battery where applicable, and wait for all moving components to stop before servicing the cutting deck.\u003c\/li\u003e\n\u003cli\u003eWear heavy protective gloves when handling mower blades.\u003c\/li\u003e\n\u003cli\u003eThis listing is for \u003cstrong\u003eone Husqvarna 521981501 18-Inch Gator Blade only\u003c\/strong\u003e unless otherwise specified. Blade bolts, washers, spindles, adapters, baffles, mulch caps, and other mower deck components are sold separately.\u003c\/li\u003e\n\u003cli\u003eMatch \u003cstrong\u003epart number 521981501\u003c\/strong\u003e with your equipment's illustrated parts diagram or OEM documentation before ordering to ensure proper fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden has-[\u0026gt;_:empty]:hidden\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Husqvarna","offers":[{"title":"Default Title","offer_id":53734263849323,"sku":"521981501","price":28.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/9201\/5723\/files\/husqvarnalogo_002a8684-e6da-48bb-8d54-696d9229684a.jpg?v=1786997094","url":"https:\/\/generalsprayers.com\/products\/husqvarna-521981501-18-inch-gator-blade-genuine-oem-replacement-mower-blade","provider":"GeneralSprayers","version":"1.0","type":"link"}