Does filter thread have to match exactly?

[Boxol]

My RV has a Cummins 6.7L engine. When I di research on the oil filter it states Fleetguard LF3970 and the thread is 1-1/8 16. I’d like to upgrade the filter with either a Donaldson blue or Fleetguard venturi. Now when I search for a Cummins 6.7L oil filter MOST come up for the “truck” models not RV and these have threads of 1 16. Not 1-1/8 16.

im just wondering if a 1 16 thread would fit on my RV that calls for a 1-1/8 16? Seems no place has the info and multiple places say they can or cannot be interchanged haha. Thanks all

 

[CDX825]

Not going to work.

Strange to me though that your 6.7 in your rv would have a different thread than whats on the trucks.

 

[billt460]

Oil filters do not seal on the threads, like a NPT thread does. The threads are utilized to provide torque to seal against the rubber gasket on the filter itself to the flange. That being said, they have to match. They're called "spin on filters" for a reason.

There should be zero resistance in the threads until the rubber meets the sealing flange. Nor should they be so loose they rattle around. The numbers have to match.... Not mix and match, like women's shorts and tops.

 

[Lubener]

Your question doesn't make sense to me? If the threads don't match, why would you even think of using it?

 

[ZeeOSix]

im just wondering if a 1 16 thread would fit on my RV that calls for a 1-1/8 16?

1 inch diameter and 1-1/8 inch diameter are different, so no way they are interchangeable. You can't thread a 1-1/8 inch nut (the filter) on a 1 inch bolt (the filter mount).

Just buy oil filters that have the same thread as what your RV has.

 

[demarpaint]

I wouldn't mix and match threads. Get the right filter for the application.

 

[MParr]

Nope, not going to work.

 

[RooflessVW]

Could install the 1⅛ spud from a 6.7 truck?

 

[Astro14]

Can you screw together a bolt and nut that are different sizes and thread pitch?

No, of course not.

That‘s what you’re asking here. No. It won’t work.

 

[Kira]

You're covered.
Your filter crosses with the WIX 57182; note the thread size.
The filter look-up at www.wixfilters.com is good to use.
Go "big picture" first by looking up interchangeable filters. Sweat the details later.


Product Specifications
Part Number: 57182
UPC Number: 765809571822
Style: Spin-On Lube Filter
Service: Lube/Hydraulic
Type: Full Flow
Media: Enhanced Cellulose
Height: 6.94(176)*
Outer Diameter Top: 3.67(93)*
Outer Diameter Bottom: Closed:
Thread Size: 1 1/8-16
By-Pass Valve Setting-PSI: None
Beta Ratio: 2/75=10/30
Burst Pressure-PSI: 300
Max Flow Rate: 18 GPM
Nominal Micron Rating: 10
( )* denotes metric
Gasket Diameters
Number O.D. I.D.
Attached 2.829 (72)* 2.459 (62)* 0.235 (6)*
Principle Application:
Principle Application: Apache, Case, Cummins B Series Engines, Freightliner, Komatsu, Other

Part Number: 57182

 

[dnewton3]

Ladies and gentlemen, we have a new winner!
A "winner"???? Of what?????
The OP registered in mid-2008, and has posted his first thread in more than 13 years !!!!!
That's the record for restraint.



As for the thread topic ...
No - do not mix thread types.
There might be a teeny bit of engagement such that the filter may hold on there while sitting still with engine not running, but there won't be enough thread engagement for good torque retention while in operation. The filter would be at great risk of falling off.

Get the right filter for the job.

 

[andyd]

Ladies and gentlemen, we have a new winner!
A "winner"???? Of what?????
The OP registered in mid-2008, and has posted his first thread in more than 13 years !!!!!
That's the record for restraint.



As for the thread topic ...
No - do not mix thread types.
There might be a teeny bit of engagement such that the filter may hold on there while sitting still with engine not running, but there won't be enough thread engagement for good torque retention while in operation. The filter would be at great risk of falling off.

Get the right filter for the job.

 

[ekrampitzjr]

Could some sources have left off the "1/8" in error, so it reads 1" instead of the correct 1-1/8"? I've seen mistakes spread that way before. Handling fractions is iffy on some computer apps.

 

[Boxol]

Not going to work.

Strange to me though that your 6.7 in your rv would have a different thread than whats on the trucks.

I 100% agree but alas it is. Guessing it’s the freightliner chassis that they made the change? Thanks for response

 

[Boxol]

Your question doesn't make sense to me? If the threads don't match, why would you even think of using it?

Because across multiple sites ive seen when researching some folks have mentioned filters made for Cummins 6.7L on a truck. I didn’t not see how this was possible because of the slight thread difference, even if everything else is exactly the same, so I thought I’d just make a post asking the experts.

 

[Boxol]

You're covered.
Your filter crosses with the WIX 57182; note the thread size.
The filter look-up at www.wixfilters.com is good to use.
Go "big picture" first by looking up interchangeable filters. Sweat the details later.


Product Specifications
Part Number: 57182
UPC Number: 765809571822
Style: Spin-On Lube Filter
Service: Lube/Hydraulic
Type: Full Flow
Media: Enhanced Cellulose
Height: 6.94(176)*
Outer Diameter Top: 3.67(93)*
Outer Diameter Bottom: Closed:
Thread Size: 1 1/8-16
By-Pass Valve Setting-PSI: None
Beta Ratio: 2/75=10/30
Burst Pressure-PSI: 300
Max Flow Rate: 18 GPM
Nominal Micron Rating: 10
( )* denotes metric
Gasket Diameters
Number O.D. I.D.
Attached 2.829 (72)* 2.459 (62)* 0.235 (6)*
Principle Application:
Principle Application: Apache, Case, Cummins B Series Engines, Freightliner, Komatsu, Other

Part Number: 57182

Thanks Kira

 

[Boxol]

Ladies and gentlemen, we have a new winner!
A "winner"???? Of what?????
The OP registered in mid-2008, and has posted his first thread in more than 13 years !!!!!
That's the record for restraint.



As for the thread topic ...
No - do not mix thread types.
There might be a teeny bit of engagement such that the filter may hold on there while sitting still with engine not running, but there won't be enough thread engagement for good torque retention while in operation. The filter would be at great risk of falling off.

Get the right filter for the job.

LOL I learned a lot about oil from this site and still read threads all the time, just never Posted questions because I found my answers in the search menu. Yes I realize now there is a reason why I didn’t find this answer in the search menu lolol.

thanks for the info

 

[Boxol]

So I did a cross search for the recommended LF3970 filter and below is what I got. Anyone suggest any of these filters over the LF3970 Stratapore filter? I was kinda hoping for a Donaldson Blue or even Fleetguard Venturi but can’t find any on the list.​

• FLEETGUARD LF3970:​

• Thread measurement: 1 1/8-16 UN-2B
• Height: 176.78 mm (Approx. 6.96")
• 
  

• • FLEETGUARD LF3970 replacement filters

• AC-Delco PF2233
• AG-CHEM-EQUIPMENT 723721
• AGCO 509249D1
• AGCO 702619A1
• Alco Filters SP1352
• ALLIANCE ABP/N10G-LF3970
• ALLIANCE ABPN10GLF3970
• AMMANN ND116140
• Baldwin B7177
• Baldwin BK6031
• Baldwin BT595
• BERING 26325-83000
• BERING 2632583000
• BIG A 91028
• BLOUNT 30010252
• CARQUEST 84028
• CARQUEST 84182
• CARQUEST 84182MP
• CASE-IH 71101552
• CASE-IH J937736

• CASE-IH J942365
• Champion Laboratories LFP3970
• CONSOLIDATED-DIESEL 3942365
• CUMMINS 3937144
• CUMMINS 3937736
• CUMMINS 3942365
• Donaldson P550428
• DYNAPAC 939082
• DYNAPAC 966630416
• FIL FILTER ZP3116MG
• Fleetguard LF3729
• Fleetguard LF3937
• Fleetguard LF3970
• Fleetguard MK13153
• Fleetguard MK13154
• Fleetguard MK13171
• Fram PH8942
• GROVE 9414101679
• HASTINGS HF919
• HASTINGS LF551

• HYSTER 1524551
• Hyundai 11N870110
• JCB (J.C Bamford) 32925413
• Komatsu 21U6011320
• KRALINATOR L349
• LUBER-FINER LFP3729
• LUBER-FINER LFP3970
• MANITOWOC 9414101679
• Mann W951
• MCCORMICK 702619A1
• NAPA 7028
• NAPA 7182
• Purolator L45391
• Purolator L45881
• TERBERG 28041787
• TEREX 218667
• TEREX 704970120
• Wix 57028
• Wix 57182
• Wix 57182MP

Yet another “probably stupid question”. But can I use a larger over all filter if say the threads are a match? I found a Donaldson Blue that seems much better filtration than the LF3970 with the same thread but diameter and such are slightly differen.

 

[RooflessVW]

So I did a cross search for the recommended LF3970 filter and below is what I got. Anyone suggest any of these filters over the LF3970 Stratapore filter? I was kinda hoping for a Donaldson Blue or even Fleetguard Venturi but can’t find any on the list.​

• FLEETGUARD LF3970:​

• Thread measurement: 1 1/8-16 UN-2B
• Height: 176.78 mm (Approx. 6.96")
• 
  

• • FLEETGUARD LF3970 replacement filters

• AC-Delco PF2233
• AG-CHEM-EQUIPMENT 723721
• AGCO 509249D1
• AGCO 702619A1
• Alco Filters SP1352
• ALLIANCE ABP/N10G-LF3970
• ALLIANCE ABPN10GLF3970
• AMMANN ND116140
• Baldwin B7177
• Baldwin BK6031
• Baldwin BT595
• BERING 26325-83000
• BERING 2632583000
• BIG A 91028
• BLOUNT 30010252
• CARQUEST 84028
• CARQUEST 84182
• CARQUEST 84182MP
• CASE-IH 71101552
• CASE-IH J937736

• CASE-IH J942365
• Champion Laboratories LFP3970
• CONSOLIDATED-DIESEL 3942365
• CUMMINS 3937144
• CUMMINS 3937736
• CUMMINS 3942365
• Donaldson P550428
• DYNAPAC 939082
• DYNAPAC 966630416
• FIL FILTER ZP3116MG
• Fleetguard LF3729
• Fleetguard LF3937
• Fleetguard LF3970
• Fleetguard MK13153
• Fleetguard MK13154
• Fleetguard MK13171
• Fram PH8942
• GROVE 9414101679
• HASTINGS HF919
• HASTINGS LF551

• HYSTER 1524551
• Hyundai 11N870110
• JCB (J.C Bamford) 32925413
• Komatsu 21U6011320
• KRALINATOR L349
• LUBER-FINER LFP3729
• LUBER-FINER LFP3970
• MANITOWOC 9414101679
• Mann W951
• MCCORMICK 702619A1
• NAPA 7028
• NAPA 7182
• Purolator L45391
• Purolator L45881
• TERBERG 28041787
• TEREX 218667
• TEREX 704970120
• Wix 57028
• Wix 57182
• Wix 57182MP

Yet another “probably stupid question”. But can I use a larger over all filter if say the threads are a match? I found a Donaldson Blue that seems much better filtration than the LF3970 with the same thread but diameter and such are slightly differen.

If the threads and the gasket match, you're really only limited by space.

 

[OVERKILL]

So I did a cross search for the recommended LF3970 filter and below is what I got. Anyone suggest any of these filters over the LF3970 Stratapore filter? I was kinda hoping for a Donaldson Blue or even Fleetguard Venturi but can’t find any on the list.​

• FLEETGUARD LF3970:​

• Thread measurement: 1 1/8-16 UN-2B
• Height: 176.78 mm (Approx. 6.96")
• 
  

• • FLEETGUARD LF3970 replacement filters

• AC-Delco PF2233
• AG-CHEM-EQUIPMENT 723721
• AGCO 509249D1
• AGCO 702619A1
• Alco Filters SP1352
• ALLIANCE ABP/N10G-LF3970
• ALLIANCE ABPN10GLF3970
• AMMANN ND116140
• Baldwin B7177
• Baldwin BK6031
• Baldwin BT595
• BERING 26325-83000
• BERING 2632583000
• BIG A 91028
• BLOUNT 30010252
• CARQUEST 84028
• CARQUEST 84182
• CARQUEST 84182MP
• CASE-IH 71101552
• CASE-IH J937736
• CASE-IH J942365
• Champion Laboratories LFP3970
• CONSOLIDATED-DIESEL 3942365
• CUMMINS 3937144
• CUMMINS 3937736
• CUMMINS 3942365
• Donaldson P550428
• DYNAPAC 939082
• DYNAPAC 966630416
• FIL FILTER ZP3116MG
• Fleetguard LF3729
• Fleetguard LF3937
• Fleetguard LF3970
• Fleetguard MK13153
• Fleetguard MK13154
• Fleetguard MK13171
• Fram PH8942
• GROVE 9414101679
• HASTINGS HF919
• HASTINGS LF551
• HYSTER 1524551
• Hyundai 11N870110
• JCB (J.C Bamford) 32925413
• Komatsu 21U6011320
• KRALINATOR L349
• LUBER-FINER LFP3729
• LUBER-FINER LFP3970
• MANITOWOC 9414101679
• Mann W951
• MCCORMICK 702619A1
• NAPA 7028
• NAPA 7182
• Purolator L45391
• Purolator L45881
• TERBERG 28041787
• TEREX 218667
• TEREX 704970120
• Wix 57028
• Wix 57182
• Wix 57182MP

Yet another “probably stupid question”. But can I use a larger over all filter if say the threads are a match? I found a Donaldson Blue that seems much better filtration than the LF3970 with the same thread but diameter and such are slightly differen.

Not only do the threads have to match, but the gasket diameter must match as well. as @RooflessVW noted.

From Donaldson, the attributes of the "cheap" (cellulose) replacement are:

Which is the P550428

However, they also make a Synteq media version, the P551019:

Note the 99% efficiency at 15 microns. That's the filter I would run.