{"product_id":"deck-pulley-auc16478","title":"AUC16478 Idler Pulley Replacement for John Deere Mower Decks","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003eAUC16478 idler pulley\u003c\/strong\u003e is a replacement mower deck pulley for compatible \u003cstrong\u003eJohn Deere\u003c\/strong\u003e mower deck applications.\u003c\/p\u003e\n\u003cp\u003eUse this listing when your original pulley number matches \u003cstrong\u003eAUC16478\u003c\/strong\u003e or one of the replacement numbers below. This pulley has 148.6 mm - 5.85 in outside diameter, 18.8 mm - 0.74 in bore, 25 mm - 0.98 in pulley width, 29.5 mm - 1.16 in pulley height.\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 Idler Pulley\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 148.6 mm - 5.85 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore \/ Center Hole:\u003c\/strong\u003e 18.8 mm - 0.74 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePulley Width:\u003c\/strong\u003e 25 mm - 0.98 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePulley Height \/ Thickness:\u003c\/strong\u003e 29.5 mm - 1.16 in\u003c\/li\u003e\n\u003cli\u003eAftermarket replacement pulley for mower deck belt-drive systems\u003c\/li\u003e\n\u003cli\u003eUse for compatible John Deere 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\u003eJohn Deere:\u003c\/strong\u003e TerrainCut Front Mower\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e 1550 1570 1575 1580 1585\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e 1400 1500 62-inch 72-inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e Quik-Trak Mower\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e 648R 652B 652E 652R 661R 647 647A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e 657 657A 667 667A Q820E\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e Professional ZTrak\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e Z820A Z830A Z840A Z850A Z860A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e 1400\/1500 Front Mowers 62-inch 72-inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e Mini-Frame ZTrak\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e 717 717A 717E 727 727A 757\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e 777 797 Max-Frame ZTrak\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e Commercial Walk-Behind Mower\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e 7G18 7H17 7H19\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e F735 Front Mower (Diesel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e Estate ZTrak Z510A Z520A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e Z810A Professional ZTrak\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e ZTrak Pro Series Mower\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e Z910A Z920A Z925A Z930A Z950A\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eReplaces OEM Part Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAUC16478\u003c\/li\u003e\n\u003cli\u003eTCA17524\u003c\/li\u003e\n\u003cli\u003eTCA14593\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":53182209884527,"sku":"CAL-276473369571-1PK","price":39.95,"currency_code":"USD","in_stock":true},{"title":"2 Pack","offer_id":53182209917295,"sku":"CAL-276473375030-2PK","price":68.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0957\/5058\/6735\/files\/s-l1600_3fe3c7ab-70f5-41ad-b500-e892e7b87eaf.jpg?v=1783294553","url":"https:\/\/ptodirectusa.com\/products\/deck-pulley-auc16478","provider":"PTO Direct USA","version":"1.0","type":"link"}