Yes John, I installed the new tensioner in my '04 RT last year. New design was put into '05 Oilheads and later. Gets rid of the rattle on startup and in my case, must have improved the left camshaft timing because my 7,000 rpm detonation problem totally disappeared.
And remember you only need to do the left side.
One of the better upgrades you can do to your bike.
Upper classes are a nation's past; the middle class is its future.