Hard to find part but was reasonably priced at Greenworks. The blade is easily damaged if you hit a rock but just keep it regularly sharpened with a flat file or table grinder and it will provide years of life.
Perfect replacement for bringing the performance of my mower back to factory new. I've been using my Greenworks mower for nearly three seasons now and it's been carefree and very reliable.
We bought this 80V 21" self-propelled mower to replace a 21" snapper that was 25 years old. As good as the snapper was the Greenworks mower was such a relief & delight - so much lighter and easier to use, not to mention not having to mess with gas, oil, pull start, etc. We are both in our 70's and still enjoy keeping up our own yard but this mower has enabled us to continue to do it easily. Thank you Greenworks!!