Black & Decker Mower/Tiller Replacement Key for Sale. The OEM part number is 90530033. Compatible with the following Black and Decker products: CMM1200, SPCM1936, CM1836, CM1936, & CTL36. Used, but in good condition. For more info, please go to https://www.amazon.ca/Black-Decker-OEM-90530033-Key/dp/B00XEVEGUM