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Spark Plug fit are the new plugs too long? #4553463
10/24/17 06:29 PM
10/24/17 06:29 PM
Joined: Feb 2005
Posts: 300
TX
handyman Offline OP
handyman  Offline OP
Joined: Feb 2005
Posts: 300
TX
I got some new spark plugs for my 2001 Saturn L100. They are Bosch Double Iridium 9617. Autozone, Orilly and Rock Auto says they will fix. I pull one of the old plugs and it is quite a bit shorter than the new plug. Do I have anything to worry about?????


2011 Prius III 111k
2006 Senna LE 160k
2001 Saturn L100 200k
1993 Corolla LE 200k
Re: Spark Plug fit are the new plugs too long? [Re: handyman] #4553467
10/24/17 06:32 PM
10/24/17 06:32 PM
Joined: Oct 2009
Posts: 3,528
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline
Joined: Oct 2009
Posts: 3,528
Wet side WA
That would have made for a rough start up.


2004 Corolla 126884
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74478
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: Spark Plug fit are the new plugs too long? [Re: handyman] #4553469
10/24/17 06:33 PM
10/24/17 06:33 PM
Joined: Sep 2015
Posts: 1,598
USA
mk378 Offline
mk378  Offline
Joined: Sep 2015
Posts: 1,598
USA
Those are totally wrong. For one thing the new one is a taper seal and the originals are gasket seal. Not even close to being right. Do not attempt to install them.

Now it is possible that the ones you removed are wrong for the engine, though I doubt that gasket seal plugs will fit at all in a taper hole.

Last edited by mk378; 10/24/17 06:36 PM.
Re: Spark Plug fit are the new plugs too long? [Re: handyman] #4553470
10/24/17 06:34 PM
10/24/17 06:34 PM
Joined: Jun 2002
Posts: 6,441
MI
doitmyself Offline
doitmyself  Offline
Joined: Jun 2002
Posts: 6,441
MI
Don't use the new one. Maybe worse than the length difference, the new plug has a tapered seat while your old plug has a flat gasketed seat.

Re: Spark Plug fit are the new plugs too long? [Re: handyman] #4553478
10/24/17 06:39 PM
10/24/17 06:39 PM
Joined: Aug 2017
Posts: 226
Cincinnati, USA
Dave9 Offline
Dave9  Offline
Joined: Aug 2017
Posts: 226
Cincinnati, USA
Do you have a 2.2L 4 cyl or 3.0L V6? The original plugs with the flat seat and 19mm reach look right for the 3.0L while the tapered seat with 25mm reach (including the Bosch part # you listed) are for the 2.2L.

This is the correct Bosch Iridium for the 3.0L:
BOSCH 4512
http://www.rockauto.com/en/moreinfo.php?pk=1053685&cc=1374948&jsn=394

Last edited by Dave9; 10/24/17 06:44 PM.
Re: Spark Plug fit are the new plugs too long? [Re: handyman] #4553480
10/24/17 06:41 PM
10/24/17 06:41 PM
Joined: Dec 2013
Posts: 2,098
socal
barkingspider Offline
barkingspider  Offline
Joined: Dec 2013
Posts: 2,098
socal
Do not use the new ones. Get the same ones u pulled out or cross reference the part no of the old plugs


06 Cadillac Escalade Ext
17 Cadillac ATS (wife)
05 Toyota Camry (daughter)
11 GMC Canyon off-road (daily)
Re: Spark Plug fit are the new plugs too long? [Re: handyman] #4553483
10/24/17 06:46 PM
10/24/17 06:46 PM
Joined: Jul 2011
Posts: 429
Martinsburg West Virginia
71Chevyguy Offline
71Chevyguy  Offline
Joined: Jul 2011
Posts: 429
Martinsburg West Virginia
L100 should be 4 cylinder only, so that would have to be the 2.2 Ecotec.


18 Focus 1.0 Castrol Magnatec 5w20 / Motorcraft filter
99 VW Beetle TDI M1TDT / Mann filter
98 Buick LeSabre Kendall HM Ti 5w30 GF4 / Bosch Dist+
85 Skylark 2.5
71 Nova 250
Re: Spark Plug fit are the new plugs too long? [Re: handyman] #4553485
10/24/17 06:49 PM
10/24/17 06:49 PM
Joined: Jun 2003
Posts: 17,838
Deplorable in apple valley, ca
Chris142 Online content
Chris142  Online Content
Joined: Jun 2003
Posts: 17,838
Deplorable in apple valley, ca
As everyone else said. Wrong plugs! Taper vs gasket.


02 Wrangler carlube 5w30
87 F250 traveler 15w40
07 fjcruiser Chevron 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Spark Plug fit are the new plugs too long? [Re: handyman] #4553489
10/24/17 06:54 PM
10/24/17 06:54 PM
Joined: Aug 2003
Posts: 13,146
NE,Ohio
Rand Offline
Rand  Offline
Joined: Aug 2003
Posts: 13,146
NE,Ohio
If I'm not missing something...
according to rockauto
3.0 has the gasket type.
2.2 has the taper seat plug

The bosch 4512 for the 3.0

and the bosch 4514 for the 2.2

Is it possible someone previously installed the wrong plugs?


2019 Jeep Cherokee Trailhawk 2.0T
Re: Spark Plug fit are the new plugs too long? [Re: handyman] #4553493
10/24/17 06:56 PM
10/24/17 06:56 PM
Joined: Feb 2005
Posts: 300
TX
handyman Offline OP
handyman  Offline OP
Joined: Feb 2005
Posts: 300
TX
It is a four cylinder.


2011 Prius III 111k
2006 Senna LE 160k
2001 Saturn L100 200k
1993 Corolla LE 200k
Re: Spark Plug fit are the new plugs too long? [Re: handyman] #4553505
10/24/17 07:04 PM
10/24/17 07:04 PM
Joined: Feb 2005
Posts: 300
TX
handyman Offline OP
handyman  Offline OP
Joined: Feb 2005
Posts: 300
TX
Now, I'm wondering if I had the wrong plugs in there in the first place?? but they have been there for 75,000 miles???


2011 Prius III 111k
2006 Senna LE 160k
2001 Saturn L100 200k
1993 Corolla LE 200k
Re: Spark Plug fit are the new plugs too long? [Re: handyman] #4553510
10/24/17 07:10 PM
10/24/17 07:10 PM
Joined: Jun 2012
Posts: 694
Reno, NV
redbone3 Online content
redbone3  Online Content
Joined: Jun 2012
Posts: 694
Reno, NV
If the new plugs are correct, be sure to use a thread chaser before installing the new longer ones. It's got to have some buildup on the threads.


2014 Passat Wolfsburg, 1995 Miata.
Re: Spark Plug fit are the new plugs too long? [Re: handyman] #4553512
10/24/17 07:11 PM
10/24/17 07:11 PM
Joined: Jun 2013
Posts: 1,768
Virginia
mattwithcats Offline
mattwithcats  Offline
Joined: Jun 2013
Posts: 1,768
Virginia
Old plugs were wrong...

I would use NGK, one heat range colder...

NGK 6509, LTR6IX-11


2009 Smart Pure
Pennzoil Platinum Euro 0W-40, Purolator Synthetic PSL 14610, 45 mpg...
185/55R15 General HP tires, "H" speed rated, 44 psi (300 kpa)
Re: Spark Plug fit are the new plugs too long? [Re: handyman] #4553555
10/24/17 07:51 PM
10/24/17 07:51 PM
Joined: Mar 2008
Posts: 7,347
USA
slacktide_bitog Online content
slacktide_bitog  Online Content
Joined: Mar 2008
Posts: 7,347
USA
Use NGK instead smile

NGK #5581
or
ACDelco 41-988

The ACDelco iridium is made by NGK, a reboxed Laser Iridium.

The correct plugs for your car look like the new ones you got at Autozone, the longer thread. So it means the old ones were the wrong size smile

Re: Spark Plug fit are the new plugs too long? [Re: handyman] #4553570
10/24/17 08:02 PM
10/24/17 08:02 PM
Joined: Sep 2015
Posts: 1,598
USA
mk378 Offline
mk378  Offline
Joined: Sep 2015
Posts: 1,598
USA
Also if you do try them, before trying to start, turn the engine by hand to be sure they don't crash.

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