Pennzoil Q&A

Click here to participate in the Pennzoil Q&A

Recent Topics
Is this whats wrong with BMW?
by edwardh1
2 minutes 52 seconds ago
Harley Softail Slim S and Fatboy S 110ci Rumors...
by LoneRanger
23 minutes 17 seconds ago
Kmart Super S 5qts $7.99, 1qt $1.69 thru Sep 5
by GreenFocus
43 minutes 48 seconds ago
Need a ride?
by CourierDriver
48 minutes 13 seconds ago
Weapons of the US Military
by CourierDriver
Today at 07:22 AM
Roald Dahl's Matilda
by Shannow
Today at 06:10 AM
Watch question
by Toy4x4
Today at 01:54 AM
Thermostat rusty after 7 months installed?
by Xrs2zz
Today at 12:59 AM
Nankang getting into the All-weather action
by UG_Passat
Today at 12:29 AM
Oil leak, which motor oil should I use?
by MightMirage
Yesterday at 10:49 PM
off the air?
by pb
Yesterday at 10:04 PM
2006 Jaguar Vanden Plas
by Torrid
Yesterday at 09:14 PM
Newest Members
smb530, Johnny12, gthorpe, snake123, ChooChooMan74
55192 Registered Users
Who's Online
77 registered (babyivan, AlienBug, B20z, andyd, b1amgm47, afree, 8 invisible), 1291 Guests and 147 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
55192 Members
66 Forums
236681 Topics
3813475 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3444572 - 08/03/14 09:42 AM NAPA Gold 7899 (Chrysler) vs 1372 (Ford)
Bookmaker Offline


Registered: 01/19/08
Posts: 124
Loc: Virginia, USA
So according to the following NAPA memo from 2008:

NAPA memo

NAPA makes separate filters for Chrysler and Ford applications due to the different pitch of the 22mm threads on the Chrysler engines.

So why then do other manufacturers specify the same filter for both Chrysler and Ford applications?

The NAPA filters in question cross reference to the Fram XG2, Bosch 3410, etc., which are listed for both Ford and Chrysler applications. If you go to Rockauto.com it lists the Wix 57899 and MC FL-820S for my 2013 Dodge 5.7 Hemi. Then Rockauto.com lists the MC FL-820s and Wix 53172 for a 2008 Mustang 4.6L.

So WIX/NAPA states different filter applications between Chrysler and Ford, but everyone else says they are the same.

Does anyone know why this is?

Top
#3444588 - 08/03/14 10:02 AM Re: NAPA Gold 7899 (Chrysler) vs 1372 (Ford) [Re: Bookmaker]
Texan4Life Offline


Registered: 01/28/10
Posts: 2261
Loc: Texas
interesting..

22X1.5-6-H MM

22X1.5 MM

I think I might need to look up what the difference actually is.

what does the -6-H designate?
_________________________
2005 Dodge Ram 1500, 5.7L
[Current Fill: PP 0w-20][Baldwin B2-HPG]

Top
#3444594 - 08/03/14 10:09 AM Re: NAPA Gold 7899 (Chrysler) vs 1372 (Ford) [Re: Bookmaker]
Texan4Life Offline


Registered: 01/28/10
Posts: 2261
Loc: Texas
ok here is the skinny... They are both the same thread... just the mopar specifies a thread tolerance class of 6H
_________________________
2005 Dodge Ram 1500, 5.7L
[Current Fill: PP 0w-20][Baldwin B2-HPG]

Top
#3444664 - 08/03/14 11:46 AM Re: NAPA Gold 7899 (Chrysler) vs 1372 (Ford) [Re: Bookmaker]
Bookmaker Offline


Registered: 01/19/08
Posts: 124
Loc: Virginia, USA
So it's safe then to use a NAPA 1372 or MC-820s on Mopar?

Top
#3444757 - 08/03/14 01:53 PM Re: NAPA Gold 7899 (Chrysler) vs 1372 (Ford) [Re: Texan4Life]
ZeeOSix Offline


Registered: 07/22/10
Posts: 9474
Loc: PNW
Originally Posted By: Texan4Life
ok here is the skinny... They are both the same thread... just the mopar specifies a thread tolerance class of 6H


+1 ... it's just tolerance of the cut thread profile. You can have the same thread dia and pitch, but can cut the threads so they screw together loose of tight, depending on exactly how the profile of the threads are cut.
_________________________
A filter's brand name doesn't matter ... what's inside does.

Top
#3444761 - 08/03/14 01:57 PM Re: NAPA Gold 7899 (Chrysler) vs 1372 (Ford) [Re: Bookmaker]
ZeeOSix Offline


Registered: 07/22/10
Posts: 9474
Loc: PNW
Originally Posted By: Bookmaker
So it's safe then to use a NAPA 1372 or MC-820s on Mopar?


If they are both 22mm dia x 1.5 mm pitch, then I'd say they will all screw on fine. A little bit of thread profile difference isn't going to make or break the fit IMO. That's why others show them both cross referencing as applicable filters.
_________________________
A filter's brand name doesn't matter ... what's inside does.

Top
#3444780 - 08/03/14 02:30 PM Re: NAPA Gold 7899 (Chrysler) vs 1372 (Ford) [Re: Bookmaker]
Bookmaker Offline


Registered: 01/19/08
Posts: 124
Loc: Virginia, USA
Though I had no trouble from the Bosch D+ filters I used on my Hemi, I think it speaks well for Wix that they are the only manufacturer that took this OEM spec seriously enough to produce a special filter for it.

Top