NTK 25725
NTK part number 25725 is a oxygen (o2) sensor in the Exhaust & Emission system. This catalog matches it to 12 year-and-engine configurations from 2015 to 2018.
Verified fitment includes 2018 Audi S6 4.0L V8 Turbocharged ; 2017 Audi A8 4.0L V8 Turbocharged ; 2017 Audi RS7 4.0L V8 Turbocharged ; 2017 Audi S6 4.0L V8 Turbocharged ; 2017 Audi S7 4.0L V8 Turbocharged , plus 7 other configurations. See every vehicle this part fits.
Frequently Asked Questions
What is NTK 25725?
NTK part number 25725 is a oxygen (o2) sensor with published application data for 12 vehicle configurations from 2015 to 2018. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.
Which vehicles does NTK 25725 fit?
This catalog matches 25725 to 12 year-and-engine configurations from 2015 to 2018. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.
Is NTK 25725 OEM or aftermarket?
What matters is the published application data for this part number, not the label on the box. NTK 25725 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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