My 2006-2740 Montana has an LS filter on it. # is 400007638. There is also a second # below that on the box it came in: A1823315. Hope this helps.....Dan.
My 2006-2740 Montana has an LS filter on it. # is 400007638. There is also a second # below that on the box it came in: A1823315. Hope this helps.....Dan.