Bosch
Oxygen Sensor
$40.32
NTK
Part # 21566
4.7(47 reviews)Direct Fit Oxygen Sensor
Fits Chevrolet, Cadillac, Pontiac & more — 24 vehicle applications
Call for Price
Contact us at 1-866-461-2787 for pricing
available
Contact us at 1-866-461-2787 for pricing
Call for PriceFree ShippingOrders $99+
WarrantyManufacturer backed
Easy Returns30-day policy
Canadian OwnedShipped across Canada
Will this fit your vehicle?
Select your vehicle to check fitment.
NTK 21566 Vehicle Fitment
Fits 24 vehiclesThis Direct Fit Oxygen Sensor fits Chevrolet, Cadillac, Pontiac, Saturn vehicles.
2007-2009 Cadillac SRX
2006-2010 Cadillac STS
2006-2009 Cadillac STS
NTK 21566 Specifications
NTK 21566 Product Description
Direct Fit Oxygen Sensor
About NTK
Shop NTK Oxygen Sensor at Autrex with vehicle fitment details, current pricing, and checkout options for the NTK 21566. Eligible orders over $99 may qualify for free shipping, with some exceptions.
Ratings & Reviews
4.7out of 5
Based on 47 reviews
- 538
- 46
- 31
- 21
- 11
- Direct fit, no surprisesMarc D.Verified BuyerMay 28, 2026
Lined up perfectly with the original. Install took about an hour with the right press. Solid feel back in the steering, no more clunk over bumps.
Installed on 2016 Ram 1500
- Shipped fast across CanadaJen P.Verified BuyerMay 14, 2026
Ordered on a Monday, had it by Wednesday in Calgary. Greasable fitting is a nice touch. Quality looks on par with OEM.
Installed on 2014 Chevrolet Silverado 1500
- Good part, double-check your sideSteve R.Verified BuyerApr 30, 2026
Works great so far. Just confirm fitment for your exact trim before ordering — the fitment list on the page was accurate for mine.
Installed on 2017 Ford F-150
- Quiet againAmrit S.Verified BuyerApr 19, 2026
Replaced both sides at the same time. The knocking noise is completely gone. Boot quality feels durable.
Installed on 2015 GMC Sierra 1500
- Would buy againDaniel L.Mar 22, 2026
Second one I've bought from Autrex. Packaging was secure and the part matched the photos exactly.
Installed on 2013 Dodge Durango
Frequently Asked Questions — NTK 21566
What vehicles does the NTK 21566 fit?
The NTK 21566 fits 6 vehicle applications including 2008-2012 Chevrolet Malibu, 2006-2010 Cadillac STS, 2007-2009 Cadillac SRX, 2006-2009 Cadillac STS, 2008-2009 Pontiac G6 and 1 more. Check the full fitment list above to confirm your vehicle.
What are the shipping options for the NTK 21566?
Shipping options for the NTK 21566 are shown during checkout and may vary by item, address, and availability. Eligible orders over $99 may qualify for free shipping, with some exceptions. Call 1-866-461-2787 if you need help confirming shipping or pickup before ordering.
What is the price of the NTK 21566?
For current pricing on the NTK 21566, please call us at 1-866-461-2787. Availability and final order details are confirmed before checkout is completed.
Is the Direct Fit Oxygen Sensor a direct fit replacement?
Yes, the Direct Fit Oxygen Sensor by NTK is designed as a direct fit replacement. Use our vehicle selector to confirm compatibility with your specific vehicle.
What warranty does the Direct Fit Oxygen Sensor come with?
The Direct Fit Oxygen Sensor comes with the standard NTK manufacturer warranty. Please check the product specifications for exact warranty terms.
