circuit board 50A50 - 405

Need help determining which HVAC circut board I need. I have pulled several numbers from the board. here are the three numbers: "Model 50A50 - 405", "D340035P01", Replace with "CNT1309". can you guide me on which number I should use when ordering? the pictures of these circut boards look identical.

Hello,
Thank you for your question. Here is a link for the replacement part based off your part number:


http://www.northamericahvac.com/trane-c ... 50a50-405/


Please let us know if you have any other questions. Thank you!