RN switched the suppliers because the one I ordered was out of stock. One of the nuts affixed to the radiator, for the overflow bottle, was all messed up and it took me forever to figure out that, although it was the right size nut, the threads were jacked up. I had to remove the nut from the radiator to see that it was, for a small little nut, really damaged. I thought I was putting the screw in at a weird angle or the nut was the wrong size, but no, the nut was actually damaged, thus making it impossible to get the screw installed. I messaged support and was told a technician would contact me, but never did. I ended up using the old nut from the radiator that was being replaced. If I'm correct, the radiator they sent me was the slightly more expensive one of the two original choices on the website. Higher price/different vendor, did not necessarily mean higher quality.