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Old 04-01-2017, 10:02 AM   #1
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Question Big Honkin air filter.

Hello, Will this replace my 97 stock 5.9 12v air filter?

AFE 21-90058 Pro Dry S BHAF (Big Honkin' Air Filter)
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Old 04-01-2017, 08:07 PM   #2
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the napa filter for my '93 blue bird 5.9 is this guy. you can compare measurements

https://www.napaonline.com/en/p/FIL6500
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Old 04-01-2017, 08:18 PM   #3
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Probably the two most important air filter numbers are...

1. Particle size (in microns)...and...
2. CFM (Cubic feet per minute of flow)

Big is good, but unless the flow rate is adequate for your engine it will run fat and sluggish.

Best to check factory specs.

A good example of particle size vs flow issues are the K&N units that so many rodders love. They love'em because they have very high flow (cool). They flow at a very high rate because they don't stop much of anything from getting into your engine (not cool).

Match the right flow rate and particle size for a long lived, happy motor.
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Old 04-02-2017, 09:00 AM   #4
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Quote:
Originally Posted by turf View Post
the napa filter for my '93 blue bird 5.9 is this guy. you can compare measurements

https://www.napaonline.com/en/p/FIL6500
Thanks. Yours is quite a bit taller etc.
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Old 04-03-2017, 01:31 PM   #5
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what price are you seeing on that link?

yesterday it was $72, today its $40?


edit:
arrrgh, i tried to buy it and it showed up in my basket at $72

try this link:

Luber-finerĀ®, Built to do More - Heavy Duty Products
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Old 04-03-2017, 03:41 PM   #6
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Try this.

https://www.amazon.com/Luber-finer-L.../dp/B0049LP3SA
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Old 04-03-2017, 03:55 PM   #7
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Here's a few more.

https://www.grainger.com/product/LUB...-Filter-36DD50

Luber-Finer LAF2523 Air Filter NEW OPEN BOX | eBay

http://www.opticatonline.com/part/lu...523-air-filter

https://www.zoro.com/luberfiner-air-...23/i/G9776794/

https://www.newegg.com/Product/Produ...9SIA5D52YU9950

https://www.carid.com/fram/air-filter-mpn-laf2523.html

Walmart used to carry this filter but it has been discontinued. On average most are $35 to $40 +or- shipping.
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Old 04-03-2017, 07:29 PM   #8
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Thanks Robin!

i scored 2 fuel filters, an oil filter, and an air filter delivered for $62.

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Old 04-03-2017, 09:39 PM   #9
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Cool. That was a learning experience for me too.
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Old 04-04-2017, 08:30 AM   #10
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Thanks Robin. I was reading about 5.9's on the Cummins Forum of the Dodge Diesel forum and they talk about using a filter called Big Honkin Airfilters to use on Dodge trucks. Can't find it know but i read you can gain 15 hp with one.
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Old 04-04-2017, 09:23 AM   #11
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i looked up the thomas filters and they look quite different than the bluebird ones.

imo, the bluebird is already a big honking filter. its the size of a small trash can. and now after hooking up my turbo and replacing hoses, its quite easy to believe that a dodge air intake is much more restrictive than the bluebird one.

by the shape of the thomas filters, they do look more restrictive. than the BB one. i would think you'd want a whole kit to change the intake hardware.

thomas looks like what i call a "donaldson" type filtration system. you may look to them for an aftermarket breather.

i think i read somewhere that the BB filter was rated 330 cfm @3 microns iirc
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Old 04-04-2017, 10:47 AM   #12
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This is what I found for BHAF. The following information is taken from this identified source as follows.

"Big Honkin Air Filters" (BHAF) are standard TRACTOR filters,.incase you didnt know! - Dodge Diesel - Diesel Truck Resource Forums

"Most people are getting ripped off paying BIG for the BHAF "Big Honkin Air Filters" thats for sure!"

Here's some Alternate BHAF (Big Honkin Air Filter) part numbers:
-Fleetguard AH19037
-NAPA 2790
-WIX 42790
-Baldwin PA2820
-Hastings AF1012
-Donaldson B105006
-Donaldson ECB15006
-Cummins 3912986
-Cummins 3924541
-Fleetguard AH19037
-Baldwin PA-2806 (metal housing)
-Baldwin PA2820

All of which are the very SAME,....but sell for a hell of alot LESS, at your local Tractor Parts Supply.


Another source says: "Big Honkin Air Filters" (BHAF) are standard TRACTOR filters ...

Thanks guys, I'd never researched this before. This is good to know since I've been thinking I should get a new air filter. Hope it helps.
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Old 04-05-2017, 09:38 AM   #13
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Thanks Robin. Great money saving info.
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Old 04-05-2017, 09:53 AM   #14
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Another option is the BC-ECO type of filter. BC means Behind the Cab, so it's a self-contained canister that can be mounted anywhere, even outside. I had Racor make one for me because nobody in the USA had the size I needed in stock, which meant that it was not dried out from having sat on a shelf for umpteen years. They are available in several different flow rates and inlet/outlet diameters - mine is about 1700CFM with 7" inlet and outlet, and after I installed it I noticed more power and the turbo sounded louder. I also modified the intake plenum so I can now easily remove it to look down inside the filter to check for any cracks and deterioration - remember that a Filter Minder restriction gauge won't warn you if the filter is cracked and leaking air!

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Old 04-08-2017, 04:09 PM   #15
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Wow!! $20 delivered



i think there is a difference in the BHAF and this one. in the neck, the other one looks like it has more to attach to than this one. but its big.
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Old 04-08-2017, 04:31 PM   #16
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Quote:
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Wow!! $20 delivered



i think there is a difference in the BHAF and this one. in the neck, the other one looks like it has more to attach to than this one. but its big.
Will it fit the stock can? How about a link? thanks $20.00 is a steal.
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Old 04-08-2017, 04:44 PM   #17
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yes, that is my Bluebird stock filter, not the BHAF. it better fit in the can!

Robin found the link earlier in the post but here it is again:

https://www.amazon.com/Luber-finer-L.../dp/B0049LP3SA
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Old 04-08-2017, 07:08 PM   #18
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If you buy the same filter at a tractor shop it should be equal to the BHAF. At least that's what I understood from what I read yesterday. Then again the tractor shop isn't going to charge $20. There was no mention of adaptors.
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Old 04-09-2017, 06:41 AM   #19
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Quote:
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Wow!! $20 delivered

i think there is a difference in the BHAF and this one. in the neck, the other one looks like it has more to attach to than this one. but its big.
Are these the measurements?

13" Length x 10.5 Outer Diameter x 10 inches Inner Diameter

Thanks
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Old 04-09-2017, 06:49 AM   #20
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Are these the measurements?

13" Length x 10.5 Outer Diameter x 10 inches Inner Diameter

Thanks
its a bit smaller. it was the same size as the Napa one i took out.

12.37" tall, 9.218" wide. just guessing but the inner hole was about 6"

also that's no flange on the end, just a piece of compression foam for a seal.
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