{"product_id":"replacement-piston-rings-4","title":"Replacement Piston Rings","description":"\u003cp\u003ePiston Rings - 3.437\" + 0.030\" - 74\" Big Twin\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes top compression rings, second compression rings, and oil control rings\u003c\/li\u003e\n\u003cli\u003eTop Compression Rings are Barrel Face\u003c\/li\u003e\n\u003cli\u003eHelps in the the heat transfer process between the piston and cylinder wall\u003c\/li\u003e\n\u003cli\u003eControls combustion chamber gases allowing the piston to transfer the energy of the expanding combustion gases, to the crankshaft\u003c\/li\u003e\n\u003cli\u003eSecond Compression Ring are Reverse Torsional Taper Face\u003c\/li\u003e\n\u003cli\u003ePromotes side sealing that prevents oil from being forced under and behind the ring resulting in better oil economy\u003c\/li\u003e\n\u003cli\u003eReverse twist ring along with a taper-machined ring face duplicates the OD bottom side scraping edge of a positive twist torsional ring\u003c\/li\u003e\n\u003cli\u003eOil Control Rings are Three Piece Flex Vent\u003c\/li\u003e\n\u003cli\u003eThree-piece design allows rails to be manufactured with a small cross sectional area for better conformability to bore\u003c\/li\u003e\n\u003cli\u003eProvides uniform pressure through four steel rails and two expanders assuring positive oil control\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eDue to the thermal conductivity and design of KB pistons, special attention is required to the top ring end gap. Please read instructions furnished with piston for correct ring installation.\u003c\/li\u003e\n\u003cli\u003eIncludes enough rings for two pistons (unless noted).\u003c\/li\u003e\n\u003cli\u003eTwo rings per groove, except for the rails that will be two rail rings per one expander ring.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HASTINGS","offers":[{"title":"3.437\" + 0.030\" \/ 74\" Big Twin","offer_id":53178067550575,"sku":"DS-750823","price":80.95,"currency_code":"USD","in_stock":true},{"title":"3.875\" + 0.005\" \/ 95\" Big Bore Twin Cam","offer_id":53178067583343,"sku":"DS-750875","price":87.95,"currency_code":"USD","in_stock":true},{"title":"3.437\" + 0.020\" \/ 74\" Big Twin","offer_id":53178067616111,"sku":"DS-750822","price":80.95,"currency_code":"USD","in_stock":true},{"title":"3.498\" + 0.040\" \/ Evolution Big Twin","offer_id":53178067648879,"sku":"0912-0926","price":49.95,"currency_code":"USD","in_stock":true},{"title":"3.437\" Standard \/ 74\" Big Twin","offer_id":53178067681647,"sku":"DS-750820","price":80.95,"currency_code":"USD","in_stock":true},{"title":"3.437\" + 0.010\" \/ 74\" Big Twin","offer_id":53178067714415,"sku":"DS-750821","price":80.95,"currency_code":"USD","in_stock":true},{"title":"3.437\" + 0.040\" \/ 74\" Big Twin","offer_id":53178067747183,"sku":"DS-750824","price":80.95,"currency_code":"USD","in_stock":true},{"title":"3.437\" + 0.050\" \/ 74\" Big Twin","offer_id":53178067779951,"sku":"DS-750825","price":80.95,"currency_code":"USD","in_stock":true},{"title":"3.437\" + 0.060\" \/ 74\" Big Twin","offer_id":53178067812719,"sku":"DS-750826","price":80.95,"currency_code":"USD","in_stock":true},{"title":"3.625\" Big Bore \/ 88\" Big Twin","offer_id":53178067845487,"sku":"DS-750861","price":39.95,"currency_code":"USD","in_stock":true},{"title":"3.875\" Standard \/ 95\" Big Bore Twin Cam","offer_id":53178067878255,"sku":"DS-750874","price":87.95,"currency_code":"USD","in_stock":true},{"title":"3.437\" + 0.070\" \/ 74\" Big Twin","offer_id":53178067911023,"sku":"DS-750827","price":80.95,"currency_code":"USD","in_stock":true},{"title":"3.498\" + 0.040\" \/ 80\" Big Twin","offer_id":53178067943791,"sku":"DS-750834","price":82.95,"currency_code":"USD","in_stock":true},{"title":"3.750\" Standard \/ 88\" Twin Cam","offer_id":53178067976559,"sku":"DS-750869","price":75.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/0323\/6463\/files\/8550FB01-D277-4EB1-BBBE-0392752B8FD6_e3992615-95aa-4846-81e5-61779d293916.png?v=1783021632","url":"https:\/\/factory47.com\/products\/replacement-piston-rings-4","provider":"Factory 47","version":"1.0","type":"link"}