NTK 21566
NTK part number 21566 is a oxygen (o2) sensor in the Exhaust & Emission system. This catalog matches it to 1 year-and-engine configuration from 2008 to 2008.
Verified fitment includes 2008 Cadillac STS 4.6L V8 . See every vehicle this part fits.
Frequently Asked Questions
What is NTK 21566?
NTK part number 21566 is a oxygen (o2) sensor with published application data for 1 vehicle configuration from 2008 to 2008. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.
Which vehicles does NTK 21566 fit?
This catalog matches 21566 to 1 year-and-engine configuration from 2008 to 2008. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.
Is NTK 21566 OEM or aftermarket?
What matters is the published application data for this part number, not the label on the box. NTK 21566 is listed with its manufacturer part number so you can compare it to an OEM number or another brand that covers the same fitment.
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