Make sure that the OEM plugs are not indexed like the MB ones are. Maybe that's why replacements are so expensive.
Autopart Premium Spark Plug Set^^BIG negatory on that listing. That's a set of plugs for their 5.0l V8.^^
Indexed means what ?? Assigned to one bank or another?indexed
No the electrode is oriented in a specific way when installed.Indexed means what ?? Assigned to one bank or another?
I don’t know about MB but this is how NGK explains it. Sounds like a lot of hoopla to me:First I've heard of that.
A manufacturer would have to make the threads in the head as well as those of the plug to start (catch) at the right time and "shoulder out" at the right time too.
How does MB do it?
Pickup unavailable; delivery unavailable.
I actually tried that on my motorcycle. It doesn't work very well.Just off the top of my head....going by experiences, it seems a dual plug system, like on training aircraft, delivers more bang by design.
Stacking washers under a spark plug for a "1% increase" sounds like asking for trouble......though I'm certain MB would use special washers designed not to fail.
I was impressed when first I realized the lugs on automotive lamps serve to orient (index) filaments correctly.
I can't recall if it's a Civic or Accord, but somewhere around 2016-2020, the plugs are dealer only with nothing available from NGK or Denso. My wife's '24 Toyota Grand Highlander has no aftermarket plugs available either and they're maybe as low as $32-ish from online Toyota dealer options.RockAuto doesn't even have a listing for spark plugs for that engine.
I am flabbergasted.
Does anyone know the story behind these apparently special sparky poos?
Even the way NGK explains it makes it sound like it's technically possible and beneficial but not practical.Sounds like a lot of hoopla to me:
By the way, Big Tiger Parts is a legitimate Korean importer. I order stuff though them if I can and some of the stuff comes FedEx directly from Korea and gets to Minneapolis in 5 working days, and I just paid $20 shipping. They sent it air. That was before the tariffs though.2019 Genesis G80 Sport (3.3l V6) belonging to my BIL.
I sought part sources online, starting with dealership parts departments to avoid counterfeit parts.
There were options for full sets of plugs for Genesis' other engines.
However, plugs for the 3.3l, with its 42,000 mi. spark plug interval, are listed singly.
I've found them for $38 to $43 each. No sets of 6 were listed.
RockAuto doesn't even have a listing for spark plugs for that engine.
I am flabbergasted.
Does anyone know the story behind these apparently special sparky poos?
Is this 3.3 a queer duck of some sort?
Any feedback is appreciated.
edit: I did just find an Amazon listing for a set of 6 genuine plugs from "Big Tiger Parts" for $129.70 + $15 s+h
Also, Amazon had a "click over here" ad for OE plugs from MTQ Auto Parts (?) for $84.50.
Remember, the dealership prices come to ~$240.