{"product_id":"sierra-piston-rings-18-3902","title":"Sierra 18-3902 Piston Rings for Mercury\/Mariner Outboard Motors","description":"\u003cp\u003eThis Piston Rings for Mercury\/Mariner Outboard Motors is Sierra part 18-3902.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer part number\u003c\/th\u003e\n\u003ctd\u003e18-3902\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBore Size\u003c\/th\u003e\n\u003ctd\u003e2.875 \/ STD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFor\u003c\/th\u003e\n\u003ctd\u003e3 Ring Pistons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003ePart-number references\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMallory: 9-54217\u003c\/li\u003e\n\u003cli\u003eMercury Marine: 39-45155A12, 39-78816A12\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eMatch the part number and listed configuration to your application before ordering.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":54035562234139,"sku":"47-3902","price":43.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/8652\/0347\/files\/sierra-18-3902-47-3902.jpg?v=1790297108","url":"https:\/\/partsduck.com\/products\/sierra-piston-rings-18-3902","provider":"PartsDuck.com","version":"1.0","type":"link"}