I have always used, and liked, the Autolite Copper series. I have used the
5224 and 3924/3923s in my old 3.9L '93 Dakota and old 5.9L '01 Ram, with
really good results.
I have found, though, that these plugs wear out fast. Now, I had no problem
with this on my previous trucks, because I could swap out the plugs and
install new ones in less than 20 minutes.
However, with this 4.7L V8, it looks like a 1+ hour job. I was hoping to
find something with more lifespan than the $0.99 Autolite Coppers.
My understanding, for the normal 4.7L V8, I need “Fired in suppressor seal”
type spark plugs using a copper core ground electrode. Thus, this would be
the Autolite Coppers. But why????????
P/N SPRC12MCC4
(formerly 56028236AA)
Type: RC12MCC4
0.40 in. gap
Now, why does the 4.7L V8 HO motor use 'Unique platinum-tipped' spark plugs,
that fFeature a platinum rivet located on the tip of the center electrode???
P/N SPRC7PYCB4
Type: RC7PYCB4
0.40 in. gap
Thanks again for any and all info!
>From: Olznut@aol.com
>Reply-To: dakota-truck@dakota-truck.net
>To: aol@dakota-truck.net
>Subject: Re: DML: What Plugs For My 4.7L V8?
>Date: Sun, 17 Sep 2006 12:53:18 EDT
>
>In a message dated 9/16/2006 10:09:57 P.M. Pacific Daylight Time,
>lpd111@msn.com writes:
>
>
>My truck is a 2004, but it only has 12,500 miles on it. Every so often, it
>feels like it is idling rough.
>
>I think I am going to change out the plugs.
>
>What kind are the best for this motor?
>
>I would like something that has good longevity and GREAT performance.
>
>Thanks!
>
>Kyle
>'04 Dakota SLT Quad Cab 4x4
>
>
>
>
>
>Good 'ol fashioned .99 Autolites, can't remember the #, but 5224 and 3923
>come to mind. DO NOT USE PLATINUM!!
>
>Ed "Olznut" Halterman '06 Ram Patriot Blue Quad Cab Big Horn 610 lb/ft Of
>Cummins Turbo Diesel Torque!! "Big Blue" '66 Olds F-85 330 V-8, Intense
>Blue
>"Project Olds" Will Be Finished Soon.......
>
>
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