I took a chance with Dennis Kirk (I know some folks disagree with this company) for one single reason...they actually had a very clear listing for my 07. I searched quite a few places and not many were clear on the fact it was a SM. I chose the Moose racing application in the catalog and it turned out it was made by Venhill.(http://www.venhill.co.uk/) It fits great and I have had no trouble with it. This part number 1901688 fits 2005 thru 2008 DR-Z400SM.