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Old 03-23-2011, 09:21 AM   #1
Join Date: Dec 2009
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Looking for a turbo hose

I own a 2006 40 ft Alpine. On last trip a Turbocharger hose got a hole in it causing a loss of power. I have it at a Cummins dealer and this hose is not a Cummins part. The hose is about 4 inches in diameter and has a 90degree bend in it. It has 2 sets of numbers on it. 90-400-16 and A0518. Any ideas where we could get this part? Thanks, Doug

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Old 03-23-2011, 10:08 AM   #2
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Do a search on this forum for part number and source--this is a common problem with newer coaches. Make sure you get the higher temp orange color hose and not the original blue color, low temp hose...

Old Scout
2003 40' MDTS
Garden Ridge, Texas
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Old 03-23-2011, 10:12 AM   #3
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Dont know about locally but try here.....This company has the Purosil hose available online for $60.32

Wayne & Kathy
05 Alpine 40FDQS #75330 Motosat F1,D2 7000S HDSL5 2004 Tundra Limited,
Old Scout
2003 40' MDTS
Garden Ridge, Texas
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Old 03-23-2011, 03:40 PM   #4
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Posts: 495

The link given by Old Scout provides the correct part number for the high temperature replacement hose. See this link and look at post #9 by NorCal C&H for comments about part number 3648-400-MK:

Turbo system elbows
Dale & Karin
2006 Alpine Coach Limited 36FDTS
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