Product review (5 stars): Worked great for my washing machine, seal may contain light hole
Fairly easy to install, search youtube for "134515300 installation" and there is a great video from Appliance Pro's.
As others have said watch out for the extra light hole.  I have a LTF2940FS1, and this was shown to fit (my old seal had part numbers 1347398 (light) and 1347409 (no light)marked on it), the seal that was shipped to me contained the light hole, I did not want to return it and wait 2-3 days for another so I fixed the hole.  I measured the hole at 15/16" with a tape measure, close enough to 1".  I purchased two rubber plugs from Lowe's, Item # 139550 Model # 881324, these are 1" rubber hole plugs.  They fit nice and tight from either side of the light hole but they both would not fit at the same time.  I used a utility knife to trim 1/2" off of one plug, then they both fit in.  I was able to zip tie the plug from the back of the boot.  I am getting no leaks from the light hole with the plugs installed, this light hole is not submerged in water but is at the top and is in a wet environment (obviously), after a few weeks and 20+ loads I still have no leaks.