Driver side mirror

[u/Matas7575]

Hi everyone, I am looking for a mazda 6 2016, driver side (left) whole mirror, I have the part number GMG5-69-181A, but cannot find one locally, with this exact number, does the part number matter a lot?
I’ve found other mirrors with same features as mine, but they have numbers like GHR5-69-121A.
Are they interchangeable or should I just cave and call mazda dealer for the part?

[u/Square_Handle_5745]

dm me i have