I would bet my favorite basher they are fake, look deeper into the reviews.
"Arrived b fast However already burned in test"
The pictures show stickers placed over the OS logo to hide details that give them away as counterfeit.
I purchased this listing, similarly well reviewed, and got fakes...
OS made two press releases last winter about counterfeit glow plugs:
Announcement 1 - pictures of fake packaging
Announcement 2 - #6's are also being counterfeited
Complicating the issue is that vendors will use pictures of the genuine packaging in their listings and ship you fakes, which...