{"product_id":"503289015-piston-rings-48mm-x-1-5mm-for-husqvarna-61-365","title":"503289015 Piston Rings 48mm X 1.5mm for Husqvarna 61 365","description":"\u003cstrong\u003eThis Piston Rings Set is a replacement piston ring set compatible with Husqvarna 61 and 365 chainsaws and matches OEM Part# 503 28 90-15 \/ 503289015.\u003c\/strong\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThis precision-machined piston ring set is designed for 48mm bore engines, providing a reliable seal for optimal compression. Ideal for rebuilding Husqvarna 61 and 365 chainsaw engines, these rings restore performance and extend engine life.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Performance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e48mm bore diameter with 1.5mm ring thickness for exact fit\u003c\/li\u003e\n\u003cli\u003eHigh-strength cast iron construction for durability and heat resistance\u003c\/li\u003e\n\u003cli\u003ePrecision-ground edges ensure proper cylinder wall contact\u003c\/li\u003e\n\u003cli\u003eSold as a complete set of rings for one piston\u003c\/li\u003e\n\u003cli\u003eDirect replacement for OEM part numbers 503289015 and 503 28 90-15\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHusqvarna 61\u003c\/li\u003e\n\u003cli\u003eHusqvarna 365\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRebuilding chainsaw engines for professional and homeowner use\u003c\/li\u003e\n\u003cli\u003eRestoring compression in worn or damaged piston assemblies\u003c\/li\u003e\n\u003cli\u003ePerforming top-end engine overhauls\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number(s):\u003c\/strong\u003e 503289015, 503 28 90-15\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Bore Size:\u003c\/strong\u003e 48mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Thickness:\u003c\/strong\u003e 1.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Cast iron\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Are these rings pre-gapped?\u003cstrong\u003e A:\u003c\/strong\u003e No, the rings are not pre-gapped; you must check and adjust end gap according to your cylinder specifications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will these fit a Husqvarna 372?\u003cstrong\u003e A:\u003c\/strong\u003e No, these rings are specifically designed for 48mm bore Husqvarna 61 and 365 models; verify your engine bore size before purchasing.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eProduct appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.\u003c\/em\u003e\u003c\/p\u003e","brand":"DURAFORCE","offers":[{"title":"Default Title","offer_id":53721867059473,"sku":"ZZ3C00215","price":22.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/2446\/2929\/files\/s-l1600_3b2a99bf-b902-4ed6-b606-7f3ca2e5dabc.jpg?v=1782823526","url":"https:\/\/www.duraforce.com\/products\/503289015-piston-rings-48mm-x-1-5mm-for-husqvarna-61-365","provider":"DURAFORCE","version":"1.0","type":"link"}