{"product_id":"mcs531975","title":"S\u0026S Rocker Arm \u0026 Shaft Kit, Kucklehead \u0026 Kn – 1940–1947 Knucklehead; All S\u0026S Kn…","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eStock 1:1 rocker ratio. Will fit stock 40-47 Knucklehead and is stock replacement for S\u0026amp;S KN-series engines. Note: S\u0026amp;S rocker arms \u0026amp; shafts must be used as a kit. S\u0026amp;S rocker arms are not compatible with stock shafts. S\u0026amp;S shafts are not compatible with stock rocker arms. Note: See 531976 for replacement rocker set only for this 531975 kit.Note: Special Order Product only. To order please contact your MCS sales representative.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e40-47 (NU) Knucklehead\u003c\/li\u003e\n\u003cli\u003eall S\u0026amp;S KN (Knuckle style) engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e S\u0026amp;S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Motor parts \u0026gt; Rocker arms and shafts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e SET\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e 531975\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003eMCS Part Number: 531975\u003cbr\u003eManufacturer Part Number: 106-2412\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":44341757378880,"sku":"MCS531975","price":1343.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/531975k.jpg?v=1776035521","url":"https:\/\/hogparts.co.uk\/products\/mcs531975","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}