Doorking Replacement Circuit Board
**UPDATE**Doorking recently changed their control board parts. These new partsmay be different than the partsin your user manual. Please select the year range of your machineabove or look below for new partsand corresponding model year**
4502-010 = January 2016 to August 2018 (soon to be discontinued)
4502-012 = All openers madebeforeJanuary 2016 (your literature will say 4502-010)
4502-018 = All models made after January 2016 to current date (replaces 4502-010)
Used in models 6050, 6100 and 6300.
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