{"product_id":"b1sb724-pulley-flat-idler-w-flang","title":"B1SB724 PULLEY\/FLAT IDLER W\/FLANG","description":"\u003ch3\u003eOne New Aftermarket Replacement Flat Idler Pulley with Flanges for Simplicity Lawn Tractors\u003c\/h3\u003e\u003cp\u003eThis flanged flat idler pulley is a direct-fit replacement for the belt drive system on Simplicity lawn tractors and mowers. The flanges keep the drive belt tracking smoothly and prevent slippage, helping restore consistent power transfer to the cutting deck. Replaces Simplicity OEM part numbers 1685144SM, 1685144, 1603515, and 1603515SM.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOutside Diameter (OD): 3-5\/8 in.\u003c\/li\u003e\n\u003cli\u003eInside Diameter (ID): 3\/8 in.\u003c\/li\u003e\n\u003cli\u003eHeight: 1 in.\u003c\/li\u003e\n\u003cli\u003eBelt Surface (Flat): 3-1\/4 in.\u003c\/li\u003e\n\u003cli\u003eMaterial: Heavy-duty metal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eSimplicity:\u003c\/strong\u003e Lawn tractors and mower decks requiring OEM part numbers 1685144, 1685144SM, 1603515, or 1603515SM - verify fitment by part number before ordering.\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003eB1SB724, A-B1SB724-AI, 280-420, 280-107, 1685144SM, 1685144, 1603515SM, 1603515, IF5216, 7-05208, 34-017\u003c\/p\u003e\u003ch4\u003eAftermarket Interchange Numbers\u003c\/h4\u003e\u003cp\u003eFits Stens 280-420, Oregon 78-035, Edgewater 499021, NHC 276-9442\u003c\/p\u003e\u003cp\u003eNew aftermarket replacement part - not remanufactured, not used.\u003c\/p\u003e","brand":"Reliable Aftermarket Parts, Inc® -OD","offers":[{"title":"Default Title","offer_id":42182419644499,"sku":"A-B1SB724-AI","price":20.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/A-B1SB724-AI_01.jpg?v=1757725240","url":"https:\/\/www.reliableaftermarketparts.co.uk\/products\/b1sb724-pulley-flat-idler-w-flang","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}