I have had to replace both with in the last 18 months (lucky me) but did not go with Merc and have seen no difference and the warranty was for a year on the new ones.
Yea, that's exactly what I'm going to do. I'm putting the Sierra part number 18-2412.1adamb said:I also had the triangle one, replaced with a round OEM one on ebay for 1/2 the price.