Hello will it hurt to delete air box just put air filter on inner fender. also opinions on spectre air filters with pre filter thanks.

I found that the Napa, Wix, Fleetguard and Cummins had the same size specifications.  The Baldwin and Hastings have almost identical web site lay outs and had the same specifications. 

 

 

Quote

 

BHAF: NAPA FIL 2790, WIX 42790, Fleetguard AH19037, Hastings Af1012, and Baldwin PA2820

L          11.88”

OD      10.50”

ID         4.00”

 

Pre filter for above BHAF

FILTERWEARS F105K

 

BHAF: Napa FIL 6637, WIX 46637, Fleetguard AH1141, Hastings AF2329, Donaldson ECB085011, Baldwin PA2818 and Cummins 3912020

L          12.38”

OD        8.50”

ID        4.50”

 

Pre filter for above BHAF

FILTERWEARS K104k

 

Donaldson B105006

L          10.50”

OD      10.50”

ID          4.00”

 

 

 

ID 4.50" on the small one?

 

 

 

 

 

I run the 6637. It's a 4" ID. Fits right up. I'm not sure why this chart says 4.5"  unless the filter ID is 4.5". The neck s 4" on the last 2 I've owned.

11 minutes ago, GSP7 said:

 

ID 4.50" on the small one?

 

Thanks for the proof reading.  It's been corrected to  ID: 4.0"

Edited March 11, 20187 yr by IBMobile

I have run the big and the small one and the Id's are the same. Just a typo Mr. @IBMobile?

3 hours ago, IBMobile said:

 

 

Fleetwear makes pre filters for both sizes. 

Do you have a link for this? I'd like to have a pre filter for my 6637. I googled 'fleetwear' and don't get anything hat has to do with air filters.

3 minutes ago, IBMobile said:

 

Thanks for the proof reading.  It's been corrected to  ID: 4.0"

@dripley

7 minutes ago, IBMobile said:

 

Thanks for the proof reading.  It's been corrected to  ID: 4.0"

I figured it was a typo  ......

3 minutes ago, dave110 said:

Do you have a link for this? I'd like to have a pre filter for my 6637. I googled 'fleetwear' and don't get anything hat has to do with air filters.

I found them on Amazon in the automotive parts section.

FILTERWEAR pre filter F104K $24.95

FILTERWEAR pre filter F105K $29.95

Do you think you could put the 6637 on a tube that's 4 3/8 inch diameter? I have an afe box that I can just use, but is it flexible enough to fit over it?

1 hour ago, Alexio Auditore said:

Do you think you could put the 6637 on a tube that's 4 3/8 inch diameter? I have an afe box that I can just use, but is it flexible enough to fit over it?

No, It's stiff rubber with no give. 

10 minutes ago, IBMobile said:

No, It's stiff rubber with no give. 

 

More like a semi-soft plastic of some sort. But its still very stiff material.