NTK 21509
NTK part number 21509 is a oxygen (o2) sensor in the Exhaust & Emission system. This catalog matches it to 1 year-and-engine configuration from 1997 to 1997.
Verified fitment includes 1997 Geo Tracker 1.6L L4 . See every vehicle this part fits.
Frequently Asked Questions
What is NTK 21509?
NTK part number 21509 is a oxygen (o2) sensor with published application data for 1 vehicle configuration from 1997 to 1997. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.
Which vehicles does NTK 21509 fit?
This catalog matches 21509 to 1 year-and-engine configuration from 1997 to 1997. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.
Is NTK 21509 OEM or aftermarket?
What matters is the published application data for this part number, not the label on the box. NTK 21509 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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