Atlantic British has sent me aftermarket / non-OEM parts before, even though their web site doesn't identify them as such. A little over a ago I snapped and broke a front sway bar link while wheeling locally, and ordered a replacement from them using the OEM part # for the link (LR014145). Their price was competitive with other sites and I trusted AB's reputation so I ordered from them, but I received a "Moog" branded link instead. I mounted the link anyway since it looked compatible with the OEM part I had removed. It lasted about 3-4 months, then it broke / failed. For 30 bucks or so I didn't bother with AB's warranty (it's not the cost of the part, is the major PITA work it takes to install that sucker) and I sourced an actual OEM replacement from my local Land Rover dealer. I haven't had a problem since.