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  #1  
Old 02-08-2011, 02:31 PM
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M103 spark plug alternates

Since it is difficult to find the correct Bosch, Beru, Champion and NGK non-resistor spark plugs, will any the following copper core plugs work:

Motorcraft - SP447
Denso - T20EP-U
Splitfire - CC0101D

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  #2  
Old 02-08-2011, 03:43 PM
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Why on earth would that be difficult?? Just go to the next Mercedes dealership and ask for the correct spark plugs for your car. This is like saving a dime but wasting a dollar.
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  #3  
Old 02-08-2011, 03:56 PM
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Two plugs that are correct for OEM spec are:

NGK BP6EFS (or hotter plug BP5EFS)

Denso T20EP-U

Forget all the other choices such as splitfire etc. I purchase the NGK's from ClubPlug.net and get the Denso's from various sellers on Amazon. You will not find either of these plugs at parts stores.

Good Luck,

Jayare
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  #4  
Old 02-08-2011, 03:58 PM
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I picked up plugs for the m103 when I had it at the dealer and pricing was very competitive...though the closest MB dealer to me was about 25 minutes away...

It beat waiting for them to be shipped
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  #5  
Old 02-08-2011, 04:54 PM
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********** has the correct copper core Bosch plugs!!
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  #6  
Old 02-08-2011, 05:49 PM
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I'm sorry,

Is there something wrong with using Fastlane? Prices are comparable, and your getting the right stuff. And they're kinda responsable for the forum that you folks are advertising everyone else's website on, which is looked down on pretty hard here...
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  #7  
Old 02-08-2011, 08:05 PM
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Quote:
Originally Posted by MattBelliveau View Post
I'm sorry,

Is there something wrong with using Fastlane? Prices are comparable, and your getting the right stuff. And they're kinda responsable for the forum that you folks are advertising everyone else's website on, which is looked down on pretty hard here...

Matt.... i have used fastlane on a few occasions, but do wind up going to the auto place in az... they are usually at least 20 percent cheaper with free shipping on a 50 dollar order...

that said...one of fastlanes biggest banner advertisers is advance auto parts...and i always use them.

it's america....
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  #8  
Old 02-08-2011, 08:26 PM
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I purchased 30 NGK BP5EFS plugs from ********.com

Installed 6 today on my M103 actually and the engine runs smoother. i was using platinum R (Resistor) type before.
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  #9  
Old 02-09-2011, 02:04 PM
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Denso T20EP-U are the easiest to find that will work great.

I got Bosch H9DCO from my local dealer for $3.40/each about 3 months ago. Just go to the local dealer, ENSURE it is NOT HR9DCO. If it is, ask them to find the non-resistor and have it shipped to their dealer. The plugs are still out there. I'd recommend buying 2-3 sets now before prices skyrocket and they really do become difficult to obtain.
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  #10  
Old 02-09-2011, 03:51 PM
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I second the Denso's. I have them in my m103 right now. NGK's are also good, I have them in the 420SEL.

i found napa stocks the champion plugs that are approved for the v8s.....fyi
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  #11  
Old 02-10-2011, 12:36 PM
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Quote:
Originally Posted by hs_300e View Post
Since it is difficult to find the correct Bosch, Beru, Champion and NGK non-resistor spark plugs ...
What's difficult about it?

Just order them from Mercedes.

Just in past few months I received H9DCO from

https://www.getmercedesparts.com/oem-Mercedes-parts.html

Tip: They never are going to have Mercedes parts at PepBoys.
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  #12  
Old 01-30-2017, 03:21 PM
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Old thread I know, but new info! Mike at Pelican Parts has assured me that he is going to push for the Denso T20EP-U plugs to be available through them, as well as other non-resistor Densos for other Benz applications. He just special ordered 12 plugs for me for my M103s, $40 bucks and change including sales tax (cause I'm in his state) and shipping! That's less than $3 apiece!

I've been feeling guilty because I have NEVER bought ANYTHING from them so I called them today and told them to get those plugs so I can rectify the situation!

Anybody who needs those plugs RIGHT NOW will have to call them directly and give them the part number because it's gonna take a little while before they are listed.

Regards,
Eric
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  #13  
Old 01-30-2017, 04:12 PM
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Quote:
Originally Posted by 400Eric View Post
He just special ordered 12 plugs for me for my M103s, $40 bucks and change including sales tax (cause I'm in his state) and shipping! That's less than $3 apiece!
Albert Einstein admitted to being deficient in arithmetical ability; for the most part, the rest of us should try to refrain from displaying the same.
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  #14  
Old 01-30-2017, 08:10 PM
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rock auto has denso t20ep-u for $1.31
http://www.********.com/en/partsearch/?mfr=DENSO&partnum=T20EPU
got mine there last summer
edit: haha cant post other store links
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  #15  
Old 01-31-2017, 12:50 AM
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Quote:
Originally Posted by Frank Reiner View Post
Albert Einstein admitted to being deficient in arithmetical ability; for the most part, the rest of us should try to refrain from displaying the same.
Look, all I wrote down was the order number, the total amount, the dude's name, his extension number, and today's date. Like I said, it was less than three bucks a plug. Even if you figure three bucks a plug that works: $3.00 X 12 = $36.00 so it's not too hard to imagine the whole thing coming in at $40.70 . Maybe he forgot to charge me the sales tax, I dunno.

Maybe your the one who's deficient in arithmetical ability.

A simple "thanks for the info" would have sufficed.

Exactly when was it that I rubbed you the wrong way? Cause it sure seems lately that you go out of your way to be insulting to me. Totally un-called for.

Regards,
Eric

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