Recent Topics
Re-packing trailer bearings
by philipp10
03/29/15 11:42 AM
Plane crash at Halifax airport
by OVERKILL
03/29/15 11:41 AM
Traction Control....disable?
by wolfehunter
03/29/15 11:19 AM
Going to try and sell my car for the 1st time
by DreamerGT
03/29/15 11:18 AM
Is 75k miles really high mileage?
by RyanCreasia
03/29/15 11:08 AM
Transmission "Stiction" Eliminatir - Snake oil?
by SumpChump
03/29/15 10:52 AM
What filter for 2007 IS250?
by antik
03/29/15 09:25 AM
Oil Change reminder light reset
by Kira
03/29/15 09:12 AM
Learning to fly
by Astro14
03/29/15 09:03 AM
Value Home Centers Peak Motor Oil $9.97 - 5Qts.
by Nickdfresh
03/29/15 08:41 AM
WET SUMP
by mikeyyy
03/29/15 08:35 AM
Salt waterproof grease
by miro
03/29/15 08:22 AM
Newest Members
mikeyyy, T151P951, antik, JoeSubaru, sjr
53355 Registered Users
Who's Online
91 registered (Al, 951Indy, A_Harman, bigt61, BigLee, AccordK24, 5 invisible), 1974 Guests and 163 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
53355 Members
66 Forums
228850 Topics
3657135 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: 119
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: 2213
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: 2213
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: 119
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: 8369
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: 8369
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: 119
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