{"product_id":"namura-na-50026r-3-5-inch-polished-piston-rings-for-namura-pistons","title":"Namura NA-50026R 3.5-Inch Polished Piston Rings for Namura Pistons","description":"\u003cp\u003eRestore proper cylinder sealing with the Namura NA-50026R Piston Rings, designed specifically for use with Namura pistons. This polished ring set is sized for an 87.89 mm piston, equivalent to approximately 3.5 inches, and is intended to support reliable compression, oil control, and efficient engine operation.\u003c\/p\u003e\u003cp\u003eManufactured for Namura piston applications, these rings provide a direct-fit replacement solution when worn, damaged, or fatigued rings are affecting engine performance. Proper ring fitment is essential for maintaining combustion pressure, minimizing oil consumption, and helping protect the cylinder and piston assembly. Verify that the piston, cylinder, and ring specifications match before installation.\u003c\/p\u003e\u003cp\u003eThe Namura NA-50026R is supplied as a replacement piston ring set for Namura pistons only. Always follow the engine manufacturer’s service procedures for ring orientation, end-gap inspection, installation, and break-in. This product is identified by manufacturer part number NA-50026R and vendor part number 186-5026R.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSize: 87.89 mm piston ring size, approximately 3.5 inches\u003c\/li\u003e\n\u003cli\u003eModel: NA-50026R\u003c\/li\u003e\n\u003cli\u003eBrand: Namura\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: NA-50026R\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: 186-5026R\u003c\/li\u003e\n\u003cli\u003eApplication: Designed for Namura pistons only\u003c\/li\u003e\n\u003cli\u003eFinish: Polished surface\u003c\/li\u003e\n\u003cli\u003eFunction: Supports compression sealing and oil control\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NAMURA","offers":[{"title":"Default Title","offer_id":67558413664491,"sku":"186-5026R","price":22.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/afe4-5e94e00e83aa6.jpg?v=1790761430","url":"https:\/\/ctracingservices.com\/products\/namura-na-50026r-3-5-inch-polished-piston-rings-for-namura-pistons","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}