This is a genuine vintage replacement logic board for older Sears Craftsman garage door openers. It is a hard-to-find part for units manufactured typically between 1984 and 1992.

​Part Number: 41A3066

​FCC ID Compatibility: Works perfectly to replace boards marked BYF8GK41A3065 or BYF8GK41A3066.

​Technology: 9 Dip Switches (Code Switches).

​Frequency: 390 MHz.

​Compatible Remotes: Works with older "Dip Switch" remotes like the 61LM or Craftsman 139.53403.

​Compatibility Note:

Please verify that your existing board has 9 small white switches (dip switches) and operates on 390MHz. This board is NOT compatible with newer "Learn Button" (Smart/Green/Orange/Purple/Yellow) openers.

​What's Included:

​1x Logic Board 41A3066 (Used/Tested)

​No mounting hardware or housing included (Board only).

​Shipping & Handling:

Item will be packed carefully . We ship fast!

​Buy with confidence from a trusted seller!

?"RETURN POLICY NOTICE: All items are serialized and UV marked. Returns claimed as 'defective' will be fully tested upon arrival. If the unit is found to be in working order, a deduction will be applied to the refund to cover shipping and restocking costs as per eBay Seller Protection Policy."