{"product_id":"husqvarna-531350601-3-inch-backside-idler-pulley-genuine-oem-replacement-drive-pulley","title":"Husqvarna 531350601 3-Inch Backside Idler Pulley – Genuine OEM Replacement Drive Pulley","description":"\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-(--sticky-padding-top)\" dir=\"auto\"\u003e\u003c\/section\u003e\n\u003cbr\u003e\n\u003c\/div\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 531350601\u003cbr\u003e\u003cstrong\u003eCategory:\u003c\/strong\u003e Outdoor Power Equipment Replacement Parts \u0026amp; Drive Components\u003cbr\u003e\u003cstrong\u003eType:\u003c\/strong\u003e 3-Inch Backside Idler Pulley – Genuine OEM Replacement Drive Pulley\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eThe \u003cstrong\u003eHusqvarna 531350601 3-Inch Backside Idler Pulley\u003c\/strong\u003e is a genuine OEM replacement drive component designed for select \u003cstrong\u003eHusqvarna lawn tractors, riding mowers, and compatible outdoor power equipment drive systems\u003c\/strong\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 531350601\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 Backside Idler Pulley\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Designation:\u003c\/strong\u003e 3-Inch Backside Idler Pulley\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize Designation:\u003c\/strong\u003e 3-Inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePulley Style:\u003c\/strong\u003e Backside Idler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlternate Description:\u003c\/strong\u003e Backside Pulley \/ Belt Idler Pulley \/ Drive Belt Pulley \/ Tension Idler \/ Equipment Drive Pulley\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Belt Drive \/ Power Transmission Component\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Application:\u003c\/strong\u003e Outdoor Power Equipment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon Equipment Types:\u003c\/strong\u003e Lawn Tractors \/ Riding Mowers – Model Dependent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Belt Drive System – Model Dependent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Helps Guide, Route, Support, and Maintain Proper Positioning of the Applicable Drive Belt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Location:\u003c\/strong\u003e Belt Drive Assembly – Model Dependent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssociated Components:\u003c\/strong\u003e Drive Belt \/ Idler Arm \/ Tension Spring \/ Drive Pulley \/ Spindle Pulley \/ Mounting Hardware – Model Dependent\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 Idler Pulley\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number Reference:\u003c\/strong\u003e 531350601\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlternate Number Format:\u003c\/strong\u003e 531 35 06-01\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine \u003cstrong\u003eHusqvarna OEM\u003c\/strong\u003e replacement idler pulley\u003c\/li\u003e\n\u003cli\u003eFactory-designated \u003cstrong\u003e3-inch backside idler pulley\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDesigned for compatible Husqvarna belt-drive systems\u003c\/li\u003e\n\u003cli\u003eReplaces the applicable original equipment pulley\u003c\/li\u003e\n\u003cli\u003eHelps maintain proper drive belt routing\u003c\/li\u003e\n\u003cli\u003eSupports correct belt positioning and alignment\u003c\/li\u003e\n\u003cli\u003eHelps maintain the intended belt-drive geometry\u003c\/li\u003e\n\u003cli\u003eDesigned for contact with the applicable belt surface in a backside-idler configuration\u003c\/li\u003e\n\u003cli\u003eSupports smooth movement of the belt through the drive system\u003c\/li\u003e\n\u003cli\u003eHelps reduce unwanted belt movement when the drive assembly is functioning correctly\u003c\/li\u003e\n\u003cli\u003eApplication-specific pulley diameter, profile, and mounting configuration\u003c\/li\u003e\n\u003cli\u003eDesigned to interface with applicable OEM belts and drive components\u003c\/li\u003e\n\u003cli\u003eSuitable for replacing worn, noisy, loose, seized, cracked, or damaged pulleys\u003c\/li\u003e\n\u003cli\u003eDirect replacement for equipment specifying \u003cstrong\u003e531350601\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eBackside Idler Pulley Function \u0026amp; Importance\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e531350601 3-Inch Backside Idler Pulley\u003c\/strong\u003e serves as a belt-routing and supporting component within the applicable Husqvarna drive system.\u003c\/p\u003e\n\u003cp\u003eA simplified belt-drive arrangement can be represented as:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDrive Pulley → Drive Belt → 531350601 Backside Idler → Driven Pulley \/ Assembly\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnlike a pulley designed to engage the V-shaped driving surface of a belt, a backside idler is positioned according to the factory routing so that the applicable backside surface of the belt travels across the pulley.\u003c\/p\u003e\n\u003cp\u003eDepending on the specific drive system, the idler pulley can help provide:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProper belt routing\u003c\/li\u003e\n\u003cli\u003eBelt positioning\u003c\/li\u003e\n\u003cli\u003eDrive-system alignment\u003c\/li\u003e\n\u003cli\u003eAppropriate belt wrap around other pulleys\u003c\/li\u003e\n\u003cli\u003eSmooth belt movement\u003c\/li\u003e\n\u003cli\u003eSupport for the intended tensioning arrangement\u003c\/li\u003e\n\u003cli\u003eMaintenance of factory drive geometry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA worn or damaged idler pulley may contribute to \u003cstrong\u003ebelt squealing, abnormal vibration, uneven belt wear, belt tracking problems, excessive belt movement, repeated belt derailment, or premature drive belt failure\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eReplacement, Inspection \u0026amp; Installation\u003c\/h2\u003e\n\u003cp\u003eReplacement of the \u003cstrong\u003eHusqvarna 531350601 3-Inch Backside Idler Pulley\u003c\/strong\u003e may be appropriate if the original has:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDeveloped excessive rotational play\u003c\/li\u003e\n\u003cli\u003eBecome noisy during operation\u003c\/li\u003e\n\u003cli\u003eBecome difficult to rotate\u003c\/li\u003e\n\u003cli\u003eSeized completely\u003c\/li\u003e\n\u003cli\u003eDeveloped cracks or physical damage\u003c\/li\u003e\n\u003cli\u003eBecome bent or distorted\u003c\/li\u003e\n\u003cli\u003eDeveloped excessive pulley-surface wear\u003c\/li\u003e\n\u003cli\u003eBegun causing abnormal belt wear\u003c\/li\u003e\n\u003cli\u003eFailed to maintain proper belt tracking\u003c\/li\u003e\n\u003cli\u003eSustained damage from a failed or derailed belt\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen replacing the pulley, inspect the surrounding \u003cstrong\u003edrive belt, idler arm, mounting bolt, washers, spacers, bushings, tension spring, belt keepers, and other drive pulleys\u003c\/strong\u003e for wear or damage.\u003c\/p\u003e\n\u003cp\u003eBefore beginning service, shut off the equipment completely, remove the ignition key, disengage the applicable drive system, and prevent accidental starting. Note the original \u003cstrong\u003ebelt routing, pulley orientation, spacer arrangement, and mounting hardware sequence\u003c\/strong\u003e before disassembly.\u003c\/p\u003e\n\u003cp\u003eInstall the replacement \u003cstrong\u003e531350601 Backside Idler Pulley\u003c\/strong\u003e in the correct factory position and verify that it rotates freely and that the belt follows the specified OEM routing.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFitment \u0026amp; Important Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify compatibility with your exact \u003cstrong\u003eHusqvarna equipment model, product number, serial number, drive configuration, and production revision\u003c\/strong\u003e before ordering.\u003c\/li\u003e\n\u003cli\u003eMatch \u003cstrong\u003epart number 531350601\u003c\/strong\u003e directly with the applicable OEM parts documentation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e531350601\u003c\/strong\u003e is identified as a \u003cstrong\u003e3-Inch Backside Idler Pulley\u003c\/strong\u003e for applicable equipment.\u003c\/li\u003e\n\u003cli\u003eThe exact installation location, pulley orientation, belt routing, and drive-system function are \u003cstrong\u003emodel dependent\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eDo not assume every Husqvarna lawn tractor, riding mower, or belt-driven equipment model uses \u003cstrong\u003e531350601\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eSimilar-looking idler pulleys can differ in \u003cstrong\u003eoutside diameter, width, bearing or bushing configuration, center bore, offset, mounting style, and belt-contact profile\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eDo not select a replacement pulley solely by its approximate 3-inch diameter or visual appearance.\u003c\/li\u003e\n\u003cli\u003eUse \u003cstrong\u003e531350601\u003c\/strong\u003e as the primary OEM fitment reference.\u003c\/li\u003e\n\u003cli\u003eVerify whether the pulley contacts the \u003cstrong\u003ebackside or driving surface of the belt\u003c\/strong\u003e according to the applicable OEM belt-routing diagram.\u003c\/li\u003e\n\u003cli\u003eInspect the drive belt whenever replacing a failed idler pulley. A belt showing cracks, glazing, fraying, stretching, cuts, or abnormal wear may also require replacement.\u003c\/li\u003e\n\u003cli\u003eCheck the idler arm, tension spring, mounting hardware, and other pulleys if the previous belt repeatedly came off or experienced premature wear.\u003c\/li\u003e\n\u003cli\u003eA seized, misaligned, or excessively loose pulley can quickly damage a replacement drive belt.\u003c\/li\u003e\n\u003cli\u003eDo not lubricate belt-contact surfaces or apply substances that could cause belt slipping.\u003c\/li\u003e\n\u003cli\u003eDo not grind, drill, bend, reshape, or otherwise modify the pulley to force fitment.\u003c\/li\u003e\n\u003cli\u003eVerify that the pulley rotates freely and that the belt is correctly seated and routed before operating the equipment.\u003c\/li\u003e\n\u003cli\u003eShut off the equipment and prevent accidental starting before servicing belt-drive components.\u003c\/li\u003e\n\u003cli\u003eThis listing is for \u003cstrong\u003eone Husqvarna 531350601 3-Inch Backside Idler Pulley only\u003c\/strong\u003e unless otherwise specified. Belts, idler arms, tension springs, mounting bolts, washers, spacers, and other drive components are sold separately unless explicitly included.\u003c\/li\u003e\n\u003cli\u003eMatch \u003cstrong\u003eHusqvarna 531350601\u003c\/strong\u003e with your equipment's OEM parts 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\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Husqvarna","offers":[{"title":"Default Title","offer_id":53784685543787,"sku":"531350601","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/9201\/5723\/files\/531350601.jpg?v=1788099531","url":"https:\/\/generalsprayers.com\/products\/husqvarna-531350601-3-inch-backside-idler-pulley-genuine-oem-replacement-drive-pulley","provider":"GeneralSprayers","version":"1.0","type":"link"}