Product review (4 stars): Be aware that there are two different gaskets for the same model LG washer
The gasket does fit the LG WM2277HW washer fine.  I highly recommend purchasing the spring removal tool; it makes the job much easier.  Please be aware that there are two different gaskets that fit this model.  The difference is whether or not there is a drainage port at the bottom of the gasket when fitted in the washer.  This gasket is if there is a drainage port.  If there is not a port, then you will need gasket #4986ER0004A.  The website is not clear about this issue at all.