{"product_id":"namura-na-40008r-84-42-mm-piston-rings-for-yamaha-namura-pistons","title":"Namura NA-40008R 84.42 mm Piston Rings for Yamaha Namura Pistons","description":"\u003cp\u003eRestore proper compression and support reliable engine performance with Namura NA-40008R piston rings. Designed for use with Namura pistons measuring 84.42 mm, this ring set is intended for compatible Yamaha applications and provides a precise fit when matched to the correct piston and engine configuration.\u003c\/p\u003e\u003cp\u003eManufactured by Namura, these replacement piston rings help seal combustion gases, manage oil consumption, and maintain efficient transfer of heat from the piston to the cylinder wall. The NA-40008R is specifically intended for Namura pistons only, so verify piston compatibility and application details before installation. Proper ring orientation, ring-gap inspection, and cylinder preparation are essential for dependable service.\u003c\/p\u003e\u003cp\u003eUse this Namura piston ring set when rebuilding or servicing a compatible Yamaha engine equipped with a Namura 84.42 mm piston. Fitment may vary by year, model, engine, and piston design; confirm the manufacturer’s application information and compare the existing piston ring profile before ordering. This product is identified by manufacturer part number NA-40008R and vendor part number 186-4008R.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSize: 84.42 mm piston ring set\u003c\/li\u003e\n\u003cli\u003eApplication: Designed for compatible Yamaha engine applications\u003c\/li\u003e\n\u003cli\u003eCompatibility: For Namura pistons only\u003c\/li\u003e\n\u003cli\u003eBrand: Namura\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: NA-40008R\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: 186-4008R\u003c\/li\u003e\n\u003cli\u003eFunction: Helps restore compression, manage oil consumption, and support efficient engine operation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NAMURA","offers":[{"title":"Default Title","offer_id":67558445744363,"sku":"186-4008R","price":23.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/9abe-5e94de126dd51.gif?v=1790762588","url":"https:\/\/ctracingservices.com\/products\/namura-na-40008r-84-42-mm-piston-rings-for-yamaha-namura-pistons","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}