Spark Plugs number for Volvo 5.7 GXI-E 2008

yannick358 · **Joined:** Wed Jul 18, 2012 1:22 pm **Posts:** 77

Hi,

My boat is store for winter, I can not reach it anymore until march.

Easy one , what is the spark plug number installed by default on a Volvo GXI-E 5.7 2008?

Thanks all

TFD2001 · **Posted:** Fri Nov 30, 2012 7:30 am

P/N - 3858996
G 0.060"
(1.52mm)

Looks to be that, from what I see..

noexcuses · **Posted:** Fri Nov 30, 2012 8:32 am

From the Volvo Penta store, it looks like 3858996 was replaced by 21467472.

http://www.volvopentastore.com/Ignition ... _id.769071

ric · **Posted:** Fri Nov 30, 2012 9:19 am

Platinum plugs of any sort.. they come pre-gapped

TFD2001 · **Posted:** Fri Nov 30, 2012 9:28 am

noexcuses wrote:

From the Volvo Penta store, it looks like 3858996 was replaced by 21467472.

http://www.volvopentastore.com/Ignition ... _id.769071

Yea, my Volvo engines parts list I have is a little dated, but not too old. Must be a fairly new change, good find though!

TFD2001 · **Posted:** Fri Nov 30, 2012 9:43 am

Here is my Source file I was using:

Volvo Engine Info.pdf

ric · **Posted:** Fri Nov 30, 2012 12:05 pm

rockauto.com any 2000's vortec v8 chevy like pickup. whatever.

The Kid · **Posted:** Fri Nov 30, 2012 3:11 pm

The plug installed from the factory is an AC Delco 41-993 (platinum) or now it's been replaced with Ac Delco 41-101 (iridium)

yannick358 · **Joined:** Wed Jul 18, 2012 1:22 pm **Posts:** 77

NGK TR55iX

acguy · **Posted:** Sun Dec 02, 2012 8:33 pm

I would only put Delco plugs in. I put NGK's in my old boat and it ran like crap!!!

ric · **Posted:** Mon Dec 03, 2012 8:32 am

acguy wrote:

I would only put Delco plugs in. I put NGK's in my old boat and it ran like crap!!!

All spark plugs do is spark, there's nothing magical about them. The only price differences are from build materials which either make them last 1 year or 10 (copper standard vs. iridium). Saying your boat ran like crap with one brand vs. another using tier 1 brands is unfounded and incorrect. I have never seen an engine run "like crap" with one brand vs. another unless you had them gapped incorrectly creating misfires.

NGK's typically come pre-gapped at a generic .030 since they do not OEM anything for Chevy. Some chevy applications require .060, so if you took the NGK's out of the box and didn't set the gap correctly yes they would run like crap. Delco plugs are OEM for chevy and typically come gapped correctly in the box, hence why they ran good.

User error.

acguy · **Posted:** Mon Dec 03, 2012 12:13 pm

Ok sorry. I used the NGK and gapped them and rechecked the gap several times and the boat ran like CRAP. Is that better? NGK's had a slight stutter in them at idle speed to the point where I had changed all plugs, wires, cap and rotor with NGK's still in and it still ran like CRAP! I put the Delco's in and checked gap and all my problems disappeared.

neutron · **Posted:** Mon Dec 03, 2012 12:15 pm

aren't AC delco Marine plugs made to be less corosive?

And BTW I would only use what came out factory or what is recommended by Manufacturer for any engine. I am sure you can find them for a reasonable price
Throwing any oid plug in could give you issues

neutron · **Posted:** Mon Dec 03, 2012 12:22 pm

ric wrote:

Platinum plugs of any sort.. they come pre-gapped

ric wrote:

NGK's typically come pre-gapped at a generic .030 since they do not OEM anything for Chevy. Some chevy applications require .060, so if you took the NGK's out of the box and didn't set the gap correctly yes they would run like crap. Delco plugs are OEM for chevy and typically come gapped correctly in the box, hence why they ran good.

hmmm .........sometimes I wonder if you have 2 brains and only one fires off at a time, like an NGK with the wrong gap......

ric · **Posted:** Mon Dec 03, 2012 12:43 pm

Depends on the type of plug.

www.iFourWinns.com

Spark Plugs number for Volvo 5.7 GXI-E 2008

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