Installed BHAF
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From: eastern pa
Installed BHAF
;D Hay I got my big filter installed today an have just one question, where do I get an outerwear cover for it, it is the napa #2790 an I can't seem to find anyone that sells them except to fit smaller filters.<br> Thanks Bob
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From: Sandy, Utah
Re:Installed BHAF
Outerwears Racing .com.<br>If they don't have one, they can make one.<br>They should have that size in stock though.<br><br>http://www.outerwearsracing.com/<br><br>If they don't list it on the website, give them a call and give them the Napa part #.<br><br><br>phox
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From: eastern pa
Re:Installed BHAF
;D BradN Hay yes I did install the heat shield an it worked out great, I cut a piece of fuel line hose to fit over the shield where the hose goes around so there wont be any chance of it rubbing thru, but everything turned out great.<br> as soon as I get my camera back (my son borrowed it) an if you have kids you know how that goes 
, I will post some pic's. of it. <br> Thanks Bob
, I will post some pic's. of it. <br> Thanks Bob
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From: Salem, Ohio
Re:Installed BHAF
Was wondering how long the BHAF will last compared to the standard filter in the airbox? I see they add more oomph, and would like to add one to mine, but will wait to see what you all have to say.
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From: Gig Harbor, WA
Re:Installed BHAF
I have a BHAF installed on my truck and love it! 
When I first got it, I was contemplating getting an outerwears cover for it, but I heard that the cover REDUCES airflow by something like 200cfm! 
Can anyone confirm or deny this rumor? ??? If it is true, I think that 200cfm reduction would put its flow close to a stock airbox... :'(
When I first got it, I was contemplating getting an outerwears cover for it, but I heard that the cover REDUCES airflow by something like 200cfm! Can anyone confirm or deny this rumor? ??? If it is true, I think that 200cfm reduction would put its flow close to a stock airbox... :'(
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Re:Installed BHAF
Some IMO's --
(1) The BHAF can be a good filter, far superior to the stock unit. You will see noticeable EGT increases over a K&N and an AFE 20-40044, however; but the filtration qualities are probably better than the K&N, the same or better than the AFE. However . . . see #4 below.
(2) You do not need a prefilter for the BHAF. Running in talcum-fine dust in Nevada in summer, I've never seen a trace inside the rubber pipe or on the turbo blades. A recent oil analysis showed near-zip on the dirt.
(3) You *do* need a heat shield, as the inside lower end of the BHAF will sit within a few inches of the turbo. On long hills, you'll be drawing in very hot air if you don't have one.
(4) The standard BHAF's include the Fleetgaurd AH19037 and the NAPA 2790, as well as Wix, Baldwin, and Donaldson variants. I don't recommend these units anymore, because they have no metal net or grill on the inside of the filter -- the paper element has a better chance of coming loose or shredding, and you'll have bits of paper flying through your turbo as it spins at 70K RPM. (This happened to me last week, and I had to open up the turbo and hoses and fish the flecks out. No damage, but I have a feeling I was very, very lucky.)
Rather, I would recommend the Fleetgaurd AH19004 BHAF. It's the same as the AH19037 size & shape-wise, but has a tougher marine filter element, and a metal net on the inside. Unfortunately, it's more expensive.
I think the AFE 20-40044 is a good alternative, and if you're worried, you can put a prefilter on it, although I understand it'll cut down the airflow to BHAF proportions. It needs to be mentioned, however, that Cummins does not recommend oiled cotton-gauze filters for the B5.9L.
GP
(1) The BHAF can be a good filter, far superior to the stock unit. You will see noticeable EGT increases over a K&N and an AFE 20-40044, however; but the filtration qualities are probably better than the K&N, the same or better than the AFE. However . . . see #4 below.
(2) You do not need a prefilter for the BHAF. Running in talcum-fine dust in Nevada in summer, I've never seen a trace inside the rubber pipe or on the turbo blades. A recent oil analysis showed near-zip on the dirt.
(3) You *do* need a heat shield, as the inside lower end of the BHAF will sit within a few inches of the turbo. On long hills, you'll be drawing in very hot air if you don't have one.
(4) The standard BHAF's include the Fleetgaurd AH19037 and the NAPA 2790, as well as Wix, Baldwin, and Donaldson variants. I don't recommend these units anymore, because they have no metal net or grill on the inside of the filter -- the paper element has a better chance of coming loose or shredding, and you'll have bits of paper flying through your turbo as it spins at 70K RPM.
(This happened to me last week, and I had to open up the turbo and hoses and fish the flecks out. No damage, but I have a feeling I was very, very lucky.) Rather, I would recommend the Fleetgaurd AH19004 BHAF. It's the same as the AH19037 size & shape-wise, but has a tougher marine filter element, and a metal net on the inside. Unfortunately, it's more expensive.
I think the AFE 20-40044 is a good alternative, and if you're worried, you can put a prefilter on it, although I understand it'll cut down the airflow to BHAF proportions. It needs to be mentioned, however, that Cummins does not recommend oiled cotton-gauze filters for the B5.9L.
GP
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From: Sandy, Utah
Re:Installed BHAF
[quote author=Gear Poet link=board=7;threadid=12110;start=0#117063 date=1047930157]<br>Rather, I would recommend the Fleetgaurd AH19004 BHAF. It's the same as the AH19037 size & shape-wise, but has a tougher marine filter element, and a metal net on the inside. Unfortunately, it's more expensive. <br><br>[/quote]<br><br>Can someone with the ability add this number to the official BHAF part number list in the teck facts?<br>Perhaps with the notation that it has the metal screen and maybe that it is the marine version?<br><br>I've been hunting for a part number that has the screen, and would be nice to know where to look next time.<br>I suffer from CRS disease, and need some help 
<br><br>phox
<br><br>phox
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Re:Installed BHAF
Here's a photograph of the Fleetguard AH19004 BHAF with the "marine" filter element and the interior metal mesh or net. As you can see, there's little or no visible outside difference from the AH19037 filter. <br><br>Here's the specs from the Fleetguard site: <br><br>"Fleetguard part information for AH19004 is listed below.<br><br>Part: AH19004<br>Manufacturer: FLEETGUARD<br>Part Type: Air Housing<br><br>End Connection ID: 101.6 mm (4 in) <br>End Connection Height: 35.052 mm (1.38 in) <br>Largest Housing OD: 266.7 mm (10.5 in) <br>Overall Height: 301.75 mm (11.88 in) <br><br><br>Additional Information:<br>CUMMINS 3924541 DONALDSON ECB105013 <br>For Non-Marine applications, use <br>AH19037 For Marine Applications, use AH19004 <br>Product Comment<br>Marine applied Cummins B & C engines" <br><br>The Cummins distributor in my area (WV) lists the filter for $92, which is about 1/3 more than the listing for the AH19037, so it ain't cheap. I have no information on airflow, but since the filter medium is apparently different, I would guess that the flow characteristics would be somewhat different as well. <br><br>GP
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