{"product_id":"adefol-big-bore-47mm-cylinder-chrome-piston-kit-for-stihl-ms271-ms291-complete-overhaul-gaskets-filters","title":"Adefol Big Bore 47mm Cylinder \u0026 Chrome Piston Kit for Stihl MS271 MS291 — Complete Overhaul Gaskets \u0026 Filters","description":"\u003cp\u003e\u003cstrong\u003eAdefol's Big Bore 47mm cylinder and chrome piston kit replaces OEM 1141 020 1206 \/ 1141 020 1201 for Stihl MS271 and MS291 engines, restoring compression and performance with a complete hardware set.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis complete replacement kit is built to match the original equipment dimensions for Stihl MS271, MS271C, MS291 and MS291C chainsaws. It includes the 47mm cylinder and chrome piston plus the consumables and gaskets you need to return the two-stroke engine to dependable running condition after wear or damage. All parts are manufactured to fit OEM tolerances so installation aligns with factory clearances and mounting points.\u003c\/p\u003e\n\n\u003ch3\u003eWhat parts are included in the Adefol big bore kit?\u003c\/h3\u003e\n\u003cp\u003eThe kit bundles the core cylinder and piston assembly with the fast-moving consumables often replaced during an overhaul. You get both engine and fuel-related items so fewer separate purchases are required for a full rebuild.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x 47mm cylinder (old style) matched to the chrome piston\u003c\/li\u003e\n  \u003cli\u003e1 x chrome piston and rings set sized for 47mm bore\u003c\/li\u003e\n  \u003cli\u003e1 x air filter screen and 1 x oil filter for maintenance\u003c\/li\u003e\n  \u003cli\u003eCarburetor gaskets (2), fuel pipe, fuel line (2.5x5mm), and fuel filter\u003c\/li\u003e\n  \u003cli\u003e1 x spark plug and 2 x bar nuts to complete installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this kit fit my Stihl MS271 or MS291 chainsaw?\u003c\/h3\u003e\n\u003cp\u003eThis replacement is engineered to the OEM part numbers 1141 020 1206 and 1141 020 1201 so bolt patterns, port locations and bore size match factory specifications. That reduces the need for machining, modification, or adapted mounts during rebuilds.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-fit 47mm bore to match MS271\/MS291 engine cases\u003c\/li\u003e\n  \u003cli\u003ePorts and mounting holes align with original Stihl layouts\u003c\/li\u003e\n  \u003cli\u003eChrome piston surface for wear resistance and smooth operation\u003c\/li\u003e\n  \u003cli\u003eIncludes gaskets and seals to restore proper compression\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs installation difficult and what tools are required?\u003c\/h3\u003e\n\u003cp\u003eInstallation follows standard small-engine cylinder replacement procedures and is straightforward for anyone comfortable with basic chainsaw maintenance. Use common mechanic tools plus a torque wrench to secure fasteners to manufacturer-specified values; if unsure, a technician can complete the job quickly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTypical tools: socket set, torque wrench, piston ring compressor or careful ring installation tool\u003c\/li\u003e\n  \u003cli\u003eFollow engine timing and spark plug gap recommendations during reassembly\u003c\/li\u003e\n  \u003cli\u003eReplace gaskets and seals included in the kit to avoid air or fuel leaks\u003c\/li\u003e\n  \u003cli\u003eAllow for a proper break-in period per two-stroke best practices\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance or longevity differences can I expect?\u003c\/h3\u003e\n\u003cp\u003eThe kit restores original displacement and compression levels, which helps the saw return to intended torque and throttle response. The chrome-coated piston and matched cylinder bore improve wear resistance versus a worn cast surface, extending time between future overhauls when installed and broken in correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores factory compression for reliable starting and load response\u003c\/li\u003e\n  \u003cli\u003eChrome piston surface resists scoring and reduces friction\u003c\/li\u003e\n  \u003cli\u003eComplete gasket and filter set reduces leak and contamination risks\u003c\/li\u003e\n  \u003cli\u003eProper fit minimizes the need for additional machining or shimming\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Adefol Big Bore Cylinder \u0026amp; Piston Kit is made for owners, professional arborists, and repair shops working on Stihl MS271 or MS291 models who need a direct-fit replacement to revive engine performance. It’s ideal when the existing cylinder is scored, compression is low, or you need a consolidated parts pack — including gaskets, filters and hardware — to finish a rebuild without sourcing multiple items separately.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this kit replace OEM part 1141 020 1206?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The Adefol kit is designed to replace OEM 1141 020 1206 and 1141 020 1201 for MS271\/MS291 models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will I need to machine the cylinder to fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No machining is normally required; the kit matches OEM dimensions for direct installation when used with compatible engine cases.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Adefol","offers":[{"title":"Default Title","offer_id":56834403959124,"sku":"B0DSCX1QVD","price":89.57,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/adefol-front-packaging-kit.jpg?v=1787049919","url":"https:\/\/gardenluxe.co.uk\/products\/adefol-big-bore-47mm-cylinder-chrome-piston-kit-for-stihl-ms271-ms291-complete-overhaul-gaskets-filters","provider":"Gardenluxe Uk","version":"1.0","type":"link"}