2016~2021 41K spark plug change, found NGK plugs in the wild

Hello everyone! I recently purchased a 2017 CX9 signature, my first Mazda (Traded in a Ford with a looming transmission problem)! I picked it up with just a touch over 41K on the clock. Reading the service manual I saw the spark plugs were do for a change. I did a lot of reading on the forums and found that many people have had to default to Mazdas OEM plugs (which are NGK anyway). I ended up plugging in the NGK part number into google to see if I could find any and sure enough Oreillys popped up so I clicked to see what the website would say. The part number (90288) showed up as "available for pickup by 8AM tomorrow" @ $21.99/each and decided to give it a shot! Sure enough the next morning I got an email that the parts were in stock at my local Oreillys.

I know many people have had trouble sourcing these, so hopefully everyone else can get these next day like I did, hopefully they are starting to be available for us. I attached a picture of the plugs I pulled out, they look phenomenal and by my untrained eye appear to be good enough to still be serviceable for another 40K. The change was very easy, I plan on doing a transmission fluid & filter (strainer) change next month and will post a guide walkthrough as well for those interested.

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Antoine

Administrator
Welcome to the Mazda Club and nice find! (y)

The change was very easy, I plan on doing a transmission fluid & filter (strainer) change next month and will post a guide walkthrough as well for those interested.
A guide / walkthrough would be great...You can post it in the forums or via our new Resources feature...Here's the CX-9 section...
 

sm1ke

Work In Progress..
Moderator
Contributor
:
Canada
:
'18 CX-9 Signature
Great info, thank you! Have you noticed any changes after swapping plugs?
 
Great info, thank you! Have you noticed any changes after swapping plugs?
I think the plugs were in such good shape the changing to new ones didn't really do much overall honestly. My old 97 stratus is the only vehicle I've ever noticed a difference when the plugs were changed. I think Mazda was very conservative in their 40K service interval. However when I changed the air filter, I noticed a difference in MPGs for sure. I think it was the original filter, it was very nasty.
 
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