Here's a direct
download link to a KML that will
display the old PLSS. That PLSS is HUGE so you are better off to display a streaming service like the one in this linked KML.
To put the actual PLSS data into a KML would be well outside the capabilities of the KML file format. It just wouldn't work. That's why some people charge you for making PLSS data KMLs in small parts. KML is a bloated slow and outdated format that was never suited to spatial information like the PLSS. KML will go the way of Google Earth and the Yugo eventually.
If you want the actual PLSS files you will need to set up a database or GIS program and download a bunch of vector shapefiles. For that you will need
considerable disk space available (13+ Gigabytes in compressed form). Those PLSS files are free from several sources including the old
geocommunicator.
The PLSS that is streamed from the linked KML and offered for download is deprecated since 2009. Deprecated means no longer, updated, supported or in use - like Google Earth browser as of this coming Saturday. Kaput.
Some of the new CadNSDI PLSS that replaces the old PLSS is becoming available in dribs and drabs. It's still got a lot of problems and finding the whole set took us months.
At
Land Matters we've fixed most of the problems with the new CadNSDI PLSS and have been using it on our maps for several months. We had been waiting for the government to do that job for nearly 5 years but despite billions of dollars and dozens of experts it didn't happen. Sometimes two people working on a borrowed computer can get more done quicker than the government.

Welcome to
Land Matters.
As far as we can tell Land Matters has the only publicly available complete working CadNSDI PLSS - anywhere. Due to your donations we will be expanding our server storage and memory and adding the Quarter Quarter Sections to the new CadNSDI PLSS over the next few weeks.
Between the recognized inaccuracies of Google Earth and the fact the KML linked is way out of date I will caution against using them for anything but entertainment. Using that combination to define a legal land location is a bad idea.
Please be aware the official PLSS is not in digital form or on a map. The only official Public Land Survey is the actual survey itself, on the ground, in place. Relying entirely on either the old or the new PLSS may lead to inaccurate locations. The PLSS as we use it is a reference tool - not a complete land description.
Heavy Pans