Going down to pay Sharon at H&H about $450 for two new air filter housing and filters from Volvo. Volvo does not sell the original metal housing any longer and now uses a smaller filter for the new plastic housings. Called Napa, they never called back with info. Valley diesel took a few hours to get back and would have been cheaper but the guy did not sound like he new what he was doing. Sharon got the info, has someone she uses that is on top of it. Sharon got back to me within 10 minutes. She marked up the price for her research but got to give it to her, she was on top of it. glad to help her make a living. Mine is a TAMD41D . Spent about 4 hours tracking down this info. So if you need any info, I now have it on a PDF file.