what do you mean by pack of one and where this made from.

It means 1 spark plug each. Denso products are made either in Japan, Indonesia or China. I replaced all 4 of my plugs with this brand over two years ago and so far no need for replacement. They have now been on for over 100K miles working flawlessly.

where are these made?

Had purchased few years ago and to the best of my knowledge, these plugs were made in Japan.

does it fit a nissan quest 2011 s model?

This is what you and all that have a "fit" question do. Go to "DENSOTT.COM" then "Find Your TT Plug". You will have the correct answer and not rely on other "experts". It's a great pug at a good price.

ASIN	B00TPUAODE
Best Sellers Rank	#100,563 in Automotive ( See Top 100 in Automotive ) #639 in Automotive Performance Spark Plugs
Brand	Denso
Brand Name	Denso
Compatible with Vehicle Type	UTV
Core Material	Platinum
Core material	Platinum
Country of Publication	Japan
Customer Reviews	4.5 out of 5 stars 136 Reviews
Gap Size	0.7 Millimeters
Global Trade Identification Number	00042511047129
Included Components	Spark Plug
Item Type Name	Spark Plug
Item Weight	40 Grams
Manufacturer	Denso
Manufacturer Part Number	IXEH22TT
Thread Size	14mm
Thread size	14mm
Top Material Type	Nickel
Top material type	Nickel
UPC	042511047129
Unit Count	1 Count
Vehicle service type	UTV

Denso (4712) IXEH22TT Iridium TT Spark Plug, (Pack of 1)

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