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While PMDG does offer free trials and demos of their aircraft, a completely free, full version of the PMDG 737 for FsX is unlikely to be available due to copyright and intellectual property protections. Fsx Pmdg 737 Free Download
You're looking for a guide on how to download a free Fsx Pmdg 737. Here's what you need to know: Hope this helps
The PMDG 737 is a highly detailed and realistic Boeing 737 aircraft model for FsX. It's a popular choice among flight simulator enthusiasts due to its accuracy, features, and performance. a completely free