The Poulan Pro 375 (Farm Pro) (PP375) is all in the same. Just how someone happens to write it.
They are good saws and no different than the green ones in that regard. The 375 & 395 were made at the end of that mid-size counter vibe series. The reason they are yellow & black, is that was when they began the Poulan Pro name, colors, brand. Like 1989-90.
The 375 is 61cc with a couple 4000 type features. Like taller nylon air filter, side outlet on muffler etc. The 395 was 64cc. and usually had a gray top cover instead of black. Some in this series had brakes, some not. Usually not on the 375. Like others have said, parts are interchangeable with all saws in this series. 3400, 3700, 4000, 375, 395.
Here is my 375
Gregg,