{"product_id":"mcs915353","title":"Hastings 3-7\/8\" Chr\/Moly Piston Ring Set. +.020\"","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eReplacement for 99-06 Twin Cam models that are equipped with the 95\" (1550cc) 3-7\/8\" OEM big bore kit. Also fits 07-17 Twin Cam 103\" (1690cc) engine. Std cyl. bore: 3.875\" (98.425mm). 1st ring: 1.5mm. 2nd ring: 1.5mm. oil ring: 2.5mm. Tech tip: Piston grooves vs piston rings. It''s not difficult to determine if a Hastings piston ring set will fit a certain piston. You should measure the height of the piston groove in the piston itself. The 2 top grooves will be for compression rings; the lower groove will be for the oil ring. In most cases Hastings oil rings are of the low tension 3-piece flex vent type. Ring heights are listed for reference. Tech tip: Piston oversizes. For each oversize cylinder diameter will increase with .010\" (0.254mm). The standard bore of the cylinder is listed for reference. (Information provided by Hastings Manufacturing Company; Inc.)\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003e99-06 (NU) Twin Cam A\/B with 1550CC (95\") Big Bore; 07-17 Twin Cam 103\" engine\u003c\/p\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Hastings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e MOTOR PARTS \u0026gt; PISTON RINGS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e PR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e 915353\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Numbers\u003c\/h2\u003e\n\u003cp\u003eMCS Part Number: 915353\u003cbr\u003eManufacturer Part Number: 2M4941020\u003c\/p\u003e","brand":"Hastings","offers":[{"title":"Default Title","offer_id":57378427437443,"sku":"MCS915353","price":65.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/908440k.jpg?v=1785973336","url":"https:\/\/hogparts.co.uk\/products\/mcs915353","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}