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

Upgrade Power On This Single 49mm Chainsaw Nikasil Kit
✔️ Includes 49mm unit with piston, rings, wrist pin, and clips

This 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.

✅ Bore size measures 49 millimeters for tight tolerance fits.
✅ Slow gravity-fed casting makes the wall thicker and longer lasting.
✅ Full CNC machining keeps the inner diameter perfectly round.

💡 What makes a reliable rebuild combo handy for aging gas motors? You restore steady airflow and trap more pressure to slice thick logs clean. - Hard nickel silicon layer resists scoring when you push thin cuts. - Tight ring gap lowers blowback while keeping oil pressure steady. - Direct bolt pattern saves time so you can finish the job faster.

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