6637 Filter Cross Reference Questions
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Tuned
Joined: Oct 2009
Posts: 270
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6637 Filter Cross Reference Questions
Hi all,
So I have been reading all about this filter mod. Great stuff! But I have some questions....
B085011 is the Donaldson part number
6637 is the Wix/Napa part number
Some have stated that they are not the same filter - Donaldson is water resistant where Wix is not.
So Napa sells the 6637 for 58.49.
I put in B085011 in the search on the Napa site and it came back as "TWD B085011" - for 43.99. Is this the actual Donaldson filter? Napa guy did not know. Link to description on Napa site : http://www.napaonline.com/Search/Det...011_0000999999
TWD B085011, if it is the correct one ( and "better" than the 6637) is the same cost as the 6637 from FleetFilter.com (shipped to me at a 11.72)
Can someone help clear this up??
So I have been reading all about this filter mod. Great stuff! But I have some questions....
B085011 is the Donaldson part number
6637 is the Wix/Napa part number
Some have stated that they are not the same filter - Donaldson is water resistant where Wix is not.
So Napa sells the 6637 for 58.49.
I put in B085011 in the search on the Napa site and it came back as "TWD B085011" - for 43.99. Is this the actual Donaldson filter? Napa guy did not know. Link to description on Napa site : http://www.napaonline.com/Search/Det...011_0000999999
TWD B085011, if it is the correct one ( and "better" than the 6637) is the same cost as the 6637 from FleetFilter.com (shipped to me at a 11.72)
Can someone help clear this up??
Cargo Master
Joined: Feb 2005
Posts: 2,837
Likes: 1
I can help. Go to Riffraff Diesel and get his kit. It has everything you need for less than what you are talking about spending for the filter alone.
Postmaster
Joined: Dec 2008
Posts: 3,340
Likes: 2
Like Bob said check out Clay's kit: Riffraff Diesel: RDP 6637 Filter Kit
Comes with everything you need.
Comes with everything you need.
PREMIUM SPONSOR
Joined: Feb 2009
Posts: 6,039
Likes: 73
X2, Clux has it nailed. The Donaldson B085046 was made for high humidity environments.
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Tuned
Joined: Oct 2009
Posts: 270
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So here is a pic of my setup:
Are you saying take out tube to the orange connector or beyond it? Then get a pipe?
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Cross-Country
Joined: Jun 2009
Posts: 75
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From: West Central Indiana
I had the same exact set up as you before my 6637. You can use the K&N tube, its what I use. As for the shield, I had it crammed between the shield and the battery for a while, but like i said, its crammed. So I just took out the K&N shield. Then youre all set.
Senior User
Joined: Jul 2006
Posts: 189
Likes: 0
From: Manitoba,Canada
heres a link for the cross ref for the 6637
https://www.ford-trucks.com/forums/5...reference.html
And here is a link for plans to build a cold air box to replace the stock one
in post 72 mudmaker has a really good templates that you can print.
https://www.ford-trucks.com/forums/7...or-6637-a.html
https://www.ford-trucks.com/forums/5...reference.html
And here is a link for plans to build a cold air box to replace the stock one
in post 72 mudmaker has a really good templates that you can print.
https://www.ford-trucks.com/forums/7...or-6637-a.html
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