{"product_id":"deck-pulley-603988","title":"603988 Deck Spindle Pulley Replacement for Hustler Mower Decks","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003e603988 deck spindle pulley\u003c\/strong\u003e is a replacement mower deck pulley for compatible \u003cstrong\u003eHustler\u003c\/strong\u003e mower deck applications.\u003c\/p\u003e\n\u003cp\u003eUse this listing when your original pulley number matches \u003cstrong\u003e603988\u003c\/strong\u003e. This pulley has 122.5 mm - 4.82 in outside diameter, 15.7 mm - 0.61 in bore, 21.6 mm - 0.85 in pulley width.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Deck Spindle Pulley\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 122.5 mm - 4.82 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore \/ Center Hole:\u003c\/strong\u003e 15.7 mm - 0.61 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePulley Width:\u003c\/strong\u003e 21.6 mm - 0.85 in\u003c\/li\u003e\n\u003cli\u003eAftermarket replacement pulley for mower deck belt-drive systems\u003c\/li\u003e\n\u003cli\u003eUse for compatible Hustler mower deck applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eCompatible Brands \u0026amp; Model Series\u003c\/h2\u003e\n\u003cp\u003eCommon compatible model paths include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e Raptor \u0026amp; Raptor Limited 52-inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 934513US HTRTRS052KOHKT735U\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 934794 HTRTRS052KOHKT735M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 934802 HTRTLS052KOHKT735M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 935759 HTRTRS052KOHKT735A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 935817 HTRTRS052KOHKT735M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 936492 HTRTLS052KAWFR691VA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 936500 HTRTLS052KAWFR691VM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e Raptor EX 52-inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 937755 HTRTRS052KOHKT735A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 937763 HTRTRS052KAWFR691VA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 937771 HTRTLS052KAWFR691VA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 937813 HTRTRS052BASPROM44U7M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 937854 HTRTRS052KAWFR691VM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 937862 HTRTLS052KAWFR691VM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 938597 HTRTRL052KOHKT735A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 938605 HTRTRL052KAWFR691VA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 938613 HTRTLL052KAWFR691VA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 939116EX HTRTRL052KAWFR691VE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 939165 HTRTRL052BASPROM44U7M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e 939223 HTRTRL052KAWFR691VM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eReplaces OEM Part Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e603988\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon Symptoms of a Worn Deck Pulley\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMower deck belt squealing, slipping, or jumping off track\u003c\/li\u003e\n\u003cli\u003eVisible pulley wobble or uneven belt tracking\u003c\/li\u003e\n\u003cli\u003eGrinding, rattling, or bearing noise near the deck pulley\u003c\/li\u003e\n\u003cli\u003eReduced blade speed or inconsistent cut quality caused by poor belt tension\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\u003eFitment-focused replacement parts support\u003c\/li\u003e\n\u003cli\u003eClear part-number matching to help reduce wrong-part orders\u003c\/li\u003e\n\u003cli\u003eReplacement mower deck parts for homeowners, shops, and landscape crews\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eNeed Help Confirming Fitment?\u003c\/h2\u003e\n\u003cp\u003eIf you are not sure this is the correct pulley, send us your mower model number, deck size, and the part number from your original pulley. We can help compare the replacement path before you order.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eHow do I confirm this pulley fits my mower?\u003c\/h3\u003e\n\u003cp\u003eStart by matching the OEM pulley number on your original part. Then compare the outside diameter, bore or center-hole size, pulley width, belt profile, deck layout, and mower model.\u003c\/p\u003e\n\u003ch3\u003eCan I order by appearance alone?\u003c\/h3\u003e\n\u003cp\u003eNo. Similar-looking deck pulleys can have different bore sizes, offsets, belt profiles, and deck applications. Match the part number and dimensions first.\u003c\/p\u003e\n\u003ch3\u003eWhat causes a mower deck pulley to fail?\u003c\/h3\u003e\n\u003cp\u003eCommon causes include worn bearings, belt misalignment, impact damage, seized hardware, or long-term wear from deck belt tension.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eNeed another pulley?\u003c\/strong\u003e Browse the full \u003ca href=\"\/collections\/pulleys\"\u003emower deck pulley collection\u003c\/a\u003e for additional replacement options.\u003c\/p\u003e","brand":"PTO Direct USA","offers":[{"title":"1 Pack","offer_id":53182207525231,"sku":"CAL-286379073405-1PK","price":18.95,"currency_code":"USD","in_stock":true},{"title":"3 Pack","offer_id":53182207557999,"sku":"CAL-286379078190-3PK","price":46.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0957\/5058\/6735\/files\/s-l1600_b0496089-0445-49c3-86b8-534768a32601.jpg?v=1783294526","url":"https:\/\/ptodirectusa.com\/products\/deck-pulley-603988","provider":"PTO Direct USA","version":"1.0","type":"link"}