6637 Mod
Hotshot
Joined: Feb 2009
Posts: 10,410
Likes: 77
From: Plankinton, SD
It could be an issue, but I'm with madpogue, and I think it would be more of a problem getting the idm wet. If I ran a 6637, I'd make sure it had a wire mesh inside the filter and not just the filter. There are different brands, made different. Heard of someone sucking the filter into the turbo, one that did not have a wire mesh on the inside.
S&B makes a cold air kit, but much more expensive. It looks like the side is open, but the top is closed.
S&B OBS Powerstroke Cold Air Intake Kit - Dry - Riffraff Diesel Performance
S&B OBS Powerstroke Cold Air Intake Kit - Riffraff Diesel Performance
S&B makes a cold air kit, but much more expensive. It looks like the side is open, but the top is closed.
S&B OBS Powerstroke Cold Air Intake Kit - Dry - Riffraff Diesel Performance
S&B OBS Powerstroke Cold Air Intake Kit - Riffraff Diesel Performance
Lead Driver
Joined: Jun 2004
Posts: 6,361
Likes: 593
From: Amarillo, TEXAS!
If getting the filter moist is a concern, the NAPA 2326 filter in my signature has the hydrophobic filter media and the dimensions are the same as the 6637. It's a bit pricy when it's not on sale, though. Regular is $144; I got it during their spring filter sale for about $36. It was hard to pass up at that price. It had a Duralite sticker on it inside the NAPA box, and the Donaldson number for the filter is B085046.
Hotshot
Joined: Dec 2005
Posts: 10,253
Likes: 7,684
From: Chino Valley, Arizona
I don't even worry about my 6637 when I wash the batteries! I wash the top of them a couple times a year with soap and water, when I am done the filter is quite wet! and i start it up and drive it that way.
Cargo Master
Joined: Jul 2006
Posts: 2,756
Likes: 38
From: Nampa, ID
That gap is quite significant. As others have previously stated, I think the concern would be more about the IDM getting wet than the air filter. The "water-resistant" air filter numbers were already given, so I won't state them again.
You do have options with the air filter, but you might want to verify your IDM will not suffer due to excessive moisture conditions.
You do have options with the air filter, but you might want to verify your IDM will not suffer due to excessive moisture conditions.
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