{"product_id":"a-20817sw-ai-seal-473215","title":"A-20817SW-AI Seal (473215)","description":"\u003ch3\u003eOne New Aftermarket Replacement Oil Seal for Sidewinder Rotary Cutters\u003c\/h3\u003e\u003cp\u003eThis nitrile rubber double-lip oil seal with spring fits Sidewinder rotary cutter gearboxes and is sourced through A\u0026amp;I Products under part number A-20817SW. It seals the gearbox shaft to prevent fluid leakage and keep contaminants out of the gear Fits Case, helping extend gearbox service life. The 473215 cross-reference number is widely used by National (Timken) and other seal manufacturers, making this a well-documented replacement.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSeal Type: Nitrile Rubber (NBR), Double Lip with Spring\u003c\/li\u003e\n\u003cli\u003eInside Diameter (ID): 1.375 in (34.9 mm)\u003c\/li\u003e\n\u003cli\u003eOutside Diameter (OD): 2.374 - 2.378 in (60.3 - 60.4 mm)\u003c\/li\u003e\n\u003cli\u003eWidth \/ Thickness: 0.312 in (7.9 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eSidewinder:\u003c\/strong\u003e Rotary Cutter - Various Models\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003eA-20817SW\u003c\/p\u003e\u003ch4\u003eAftermarket Interchange Numbers\u003c\/h4\u003e\u003cp\u003e473215 (National \/ Timken); A-473215\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":41172764229715,"sku":"A-20817SW-AI","price":19.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/RAP_ComingSoon_Tractor_5071966f-e3fd-4e28-b686-8de52472fd8a.jpg?v=1757937859","url":"https:\/\/www.reliableaftermarketparts.com\/products\/a-20817sw-ai-seal-473215","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}