Fix your dead electric chainsaw, replace the drive sprocket gear.

I got my electric chainsaw seized in a tree stump, kept on pushing a damaged the drive sprocket gear. Luckily it's about $15 for a replacement part. It's also a very quick and easy fix especially on the 16" Troy-built 4.5Hp chainsaw.
Keep in mind that mine had a 56 teeth inside and the one sold has 55, don't worry its compatible. The metal gear MUST HAVE 5 teeth.
SIZE: (Dia.)*(H) 8.9*3.5cm / 3.5*1.4inch(Approx.)

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