{"product_id":"deck-pulley-603987","title":"603987 Deck Spindle Pulley Replacement for Hustler Mower Decks","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003e603987 deck spindle pulley\u003c\/strong\u003e is a replacement mower deck pulley for compatible \u003cstrong\u003eHustler\u003c\/strong\u003e mower deck applications, including select 42-inch Dash, Raptor, Raptor Limited, and open-deck Raptor configurations.\u003c\/p\u003e\n\u003cp\u003eUse this listing when your original pulley number matches \u003cstrong\u003e603987\u003c\/strong\u003e, \u003cstrong\u003e17136\u003c\/strong\u003e, or \u003cstrong\u003e13-17136\u003c\/strong\u003e. This pulley has a \u003cstrong\u003e4.80-inch outside diameter\u003c\/strong\u003e, \u003cstrong\u003e0.62-inch bore\u003c\/strong\u003e, \u003cstrong\u003e0.72-inch outer width\u003c\/strong\u003e, \u003cstrong\u003e0.39-inch inner width\u003c\/strong\u003e, and a \u003cstrong\u003e12-point mount hole\u003c\/strong\u003e.\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 4.80 in - 122 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore \/ Center Hole:\u003c\/strong\u003e 0.62 in - 16 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Width:\u003c\/strong\u003e 0.72 in - 18.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Width:\u003c\/strong\u003e 0.39 in - 10 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Hole Style:\u003c\/strong\u003e 12-point mount hole\u003c\/li\u003e\n\u003cli\u003eAftermarket replacement pulley for mower deck belt-drive systems\u003c\/li\u003e\n\u003cli\u003eUse for compatible Hustler riding mower and zero-turn 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 \u003cstrong\u003eHustler\u003c\/strong\u003e model paths include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e Dash Briggs \u0026amp; Stratton Intek Series 10.5HP, 42-inch deck\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e Dash Briggs \u0026amp; Stratton Powerbuilt 10.5HP, 42-inch deck\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e Raptor Kawasaki FR600 18HP, 42-inch deck, serial numbers 19113179 and higher or prior to 19113179\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e Raptor Kohler 7000 Series HD with Smart Choke 22HP, 42-inch deck\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e Raptor with open deck, Kawasaki FR600 18HP, 42-inch deck, serial numbers 19113179 and higher or prior to 19113179\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler:\u003c\/strong\u003e Raptor with open deck, Kohler 7000 Series HD with Smart Choke 22HP, 42-inch deck, serial numbers 19113179 and higher or prior to 19113179\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler Dash:\u003c\/strong\u003e 938498 - HTDSHS042BAS21R707A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler Dash:\u003c\/strong\u003e 939249 - HTDSHS042BAS21R707M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler Raptor:\u003c\/strong\u003e 934505US - HTRTRS042KOHKT725U\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler Raptor:\u003c\/strong\u003e 934786 - HTRTRS042KOHKT725M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler Raptor:\u003c\/strong\u003e 935742 - HTRTRS042KOHKT725A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler Raptor:\u003c\/strong\u003e 937748 - HTRTRS042KAWFR651V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler Raptor:\u003c\/strong\u003e 937847 - HTRTRS042KAWFR651VM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler Raptor:\u003c\/strong\u003e 938167 - HTRTRS042KOHKT725A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler Raptor:\u003c\/strong\u003e 938571 - HTRTRL042KOHKT725A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler Raptor:\u003c\/strong\u003e 938589 - HTRTRL042KAWFR600VA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler Raptor:\u003c\/strong\u003e 939215 - HTRTRL042KAWFR600VM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHustler Raptor Limited:\u003c\/strong\u003e 938977 - HTRTLL042KAWFR651VA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eReplaces Part Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e603987\u003c\/li\u003e\n\u003cli\u003e17136\u003c\/li\u003e\n\u003cli\u003e13-17136\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eRelated Spindle Assembly\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003e603987 deck spindle pulley\u003c\/strong\u003e is commonly associated with the Hustler spindle path referenced as \u003cstrong\u003e604214\u003c\/strong\u003e and \u003cstrong\u003e604214P\u003c\/strong\u003e. If you need the matching spindle assembly, see our \u003ca href=\"\/products\/spindle-assembly-604214\"\u003e604214 \/ 604214P Hustler spindle assembly\u003c\/a\u003e.\u003c\/p\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":53182207426927,"sku":"CAL-277078871173-1PK","price":16.95,"currency_code":"USD","in_stock":true},{"title":"2 Pack","offer_id":53182207459695,"sku":"CAL-277078884738-2PK","price":26.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0957\/5058\/6735\/files\/603987-pulley.jpg?v=1783298909","url":"https:\/\/ptodirectusa.com\/products\/deck-pulley-603987","provider":"PTO Direct USA","version":"1.0","type":"link"}