{"product_id":"heavy-duty-nikasil-cylinder-and-piston-kit-49mm-fo","title":"Heavy Duty Nikasil Cylinder And Piston Kit 49mm For Stihl MS391 Chainsaw 3Bolt Engine Upgrade Direct Oem Replacement Restore Compression And Boost Cutting Power With Complete Hardware Set","description":"\u003cdiv\u003eUpgrade Power On This Single 49mm Chainsaw Nikasil Kit\u003cbr\u003e\n✔️ Includes 49mm unit with piston, rings, wrist pin, and clips \u003cp\u003eThis heavy duty replacement kit gives you a fresh bore and piston assembly built to cut through hard wood again. You will slip it into a Stihl MS391 chainsaw to fix blown seals, low compression, or worn liners. The complete hardware set snaps right onto your existing crankcase without guesswork.\u003c\/p\u003e ✅ Bore size measures 49 millimeters for tight tolerance fits.\u003cbr\u003e\n✅ Slow gravity-fed casting makes the wall thicker and longer lasting.\u003cbr\u003e\n✅ Full CNC machining keeps the inner diameter perfectly round.\u003cbr\u003e \u003cp\u003e💡 What makes a reliable rebuild combo handy for aging gas motors?\nYou restore steady airflow and trap more pressure to slice thick logs clean.\n- Hard nickel silicon layer resists scoring when you push thin cuts.\n- Tight ring gap lowers blowback while keeping oil pressure steady.\n- Direct bolt pattern saves time so you can finish the job faster.\u003c\/p\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":68097326055659,"sku":"VXB08667HQ2H","price":302.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/71szRN-5QDL.jpg?v=1792118222","url":"https:\/\/vxbom.com\/products\/heavy-duty-nikasil-cylinder-and-piston-kit-49mm-fo","provider":"VXB Bearings","version":"1.0","type":"link"}