{"product_id":"503169171-piston-kit-for-husqvarna-55-46mm-503-16-91-71-oem-replaces","title":"503169171 Piston Kit For Husqvarna 55 46mm 503 16 91 71 OEM Replaces","description":"\u003cstrong\u003eThis Piston Kit is a 46mm replacement piston for Husqvarna 55 chainsaws and matches OEM Part# 503 16 91-71 and 503169171.\u003c\/strong\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThis piston kit is a 46mm bore piston assembly designed specifically for Husqvarna 55 chainsaw engines. It replaces worn or damaged pistons to restore compression and power output. Ideal for DIY mechanics and professional repair shops servicing the popular Husqvarna 55 model.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Performance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e46mm bore diameter matches original Husqvarna 55 specifications\u003c\/li\u003e\n\u003cli\u003eIncludes piston, rings, and wrist pin for a complete top-end rebuild\u003c\/li\u003e\n\u003cli\u003eReplaces OEM part numbers 503 16 91-71 and 503169171\u003c\/li\u003e\n\u003cli\u003eHigh-quality alloy construction withstands high RPM and heat\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves and pin bore for reliable sealing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDirect fit for Husqvarna 55 chainsaw (all variants using 46mm piston)\u003c\/li\u003e\n\u003cli\u003eCompatible with Husqvarna 55 Rancher and standard 55 models\u003c\/li\u003e\n\u003cli\u003eDoes not fit Husqvarna 55 with larger 50mm bore\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRebuilding Husqvarna 55 chainsaw engines after piston seizure or wear\u003c\/li\u003e\n\u003cli\u003eRestoring compression and cutting performance in professional and homeowner saws\u003c\/li\u003e\n\u003cli\u003eReplacing original equipment during top-end overhaul\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 503 16 91-71, 503169171\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Diameter:\u003c\/strong\u003e 46mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Piston, rings, wrist pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-strength aluminum alloy\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this kit include the piston rings?\u003cstrong\u003e A:\u003c\/strong\u003e Yes, the piston rings and wrist pin are included in this piston kit for a complete replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this fit a Husqvarna 55 with a 50mm cylinder?\u003cstrong\u003e A:\u003c\/strong\u003e No, this kit is only for 46mm bore cylinders; verify your cylinder 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":53721890029841,"sku":"ZZ3C00264","price":23.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/2446\/2929\/files\/s-l1600_88bab788-bb47-46cb-954c-35383d1e1ec8.jpg?v=1782823606","url":"https:\/\/www.duraforce.com\/products\/503169171-piston-kit-for-husqvarna-55-46mm-503-16-91-71-oem-replaces","provider":"DURAFORCE","version":"1.0","type":"link"}