{"product_id":"mcs915195","title":"Compression Release Kit for S\u0026S T-Style Heads – 1999–2017 Style T S\u0026S Heads (Twin Cam…","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eElectrically operated. Large displacement \/ high compression Twin Cam motors with S\u0026amp;S cylinder heads can sometimes be troublesome to start. These electrical operated compression release valves are opened by two separate solenoids; when the starterbutton is activated. When starter button is released the release valves close. Note 1: Will only work with S\u0026amp;S Twin Cam style heads. OEM heads will not have enough material in critical areas to allow machining. Note 2: All 89cc S\u0026amp;S TC cylinder heads are machined at the S\u0026amp;S factory. Machining on the 79cc S\u0026amp;S TC heads is optional. Note 3: Will only work with S\u0026amp;S style rocker covers ''with the central hole'' which provides the necessary clearance for the solenoids. Note 4: For replacement parts see 531408 (compression release assembly); 531407 (wiring harness) and 531422 (silicone solenoid caps).\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eAll S\u0026amp;S cylinder heads machined by S\u0026amp;S to accept compression releases (NU)\u003c\/li\u003e\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; Compression release kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e KIT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e 915195\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003eMCS Part Number: 915195\u003cbr\u003eManufacturer Part Number: 90-4915\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":44310011904320,"sku":"MCS915195","price":471.05,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/915195k_6f2003c5-f3f3-4634-b475-0401baa44944.jpg?v=1776026923","url":"https:\/\/hogparts.co.uk\/products\/mcs915195","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}