Product review (5 stars): Freezer Door Gasket Review and tips.
Believe it or not, this freezer gasket appears to be better quality than the original.. I believe that's because this part has the "Q" suffix and the original part does not, meaning it's a redesign. So, do not spend $80-$120 for an OEM part when this part is excellent quality and priced right.  Here is a video on how to install it: https://www.youtube.com/watch?v=HfIE9tPBGnI

When installing it on a freezer that is not empty and in use, duct tape a  large plastic trash bag to seal the freezer compartment. You MUST have a power screw driver with a 1/4" hex nut attachment. Manual tools will take too long. Contrary to the video, my suggestion is not to remove the 1/4" hex screws completely, but rather to merely loosen them enough and work the gasket bead into the space between the plastic and he door-until it is seated and then sequentially tighten each screw while keeping the bead seated with your finger.  Be VERY careful not to over tighten because the old plastic door interior is brittle. The repair takes about 1/2 hour.  But do not begin the repair until you have all your ducks in a row. Rather than flatten the gasket using a hair dryer or heating it by throwing it into the bathtub or dryer (per the video), I put it on a flat table, making adjustments for a couple of days until it lay flat. You may want to have a rag and a bottle of ammonia or other cleaning solution ready to remove gook on the sealing surfaces rather than have to stop to look for it with a running fridge.. After the installation it is important to duct tape the door closed overnight, so the gasket conforms to the sealing surface for the best seal.

My beef is not with this product, but the design of the original gasket. I've seen a lot of refrigerators in my lifetime. They usually last about 25 years, maintenance free (more or less), until the compressor dies or the interior plastic cracks from old age. This is the first time I've seen the refrigerator outlive the door gaskets.

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