AM Autoparts
List Price:$49.95
AM Price:$20.99
You Save:$28.96
Save 58%
Free Ground Shipping
Need this part fast? Choose Next Day Air at checkout!

Part Number: AM-21860984

FREE Shipping is standard on Orders shipped to the lower 48 States (Contiguous United States). Standard shipping charges apply to Hawaii, Alaska and US Territories.
Shipping is not available to Canada for this item.

Expedited is available on checkout to the United States, excluding Alaska, Hawaii and US Territories as well as P.O. Boxes and APO/FPO/DPO addresses.   

Install Note:

You may be required to reset the vehicle computer after installation of this part.


Electrical and electronic parts are not eligible for a refund once installed or plugged in. In the event a manufacturing defect is found, the item may be eligible for an exchange.

Attention California Customers:

proposition 65 iconWARNING:  This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm.  For more information, go to

10 Year Warranty

This item is backed by our 10-year warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.

Please note: Any modifications to an item of any kind before contacting us will void any and all warranty coverage for this item. Please contact us before modifying the part so that we have the opportunity to correct the situation.

This part replaces:

  • Standard Motor Products NA
  • OE # 226902A000
  • Walker Products Inc. 250-24452

Vehicle Fit

  • 2003-2006 Infiniti FX45 Upstream Passenger Side O2 Oxygen Sensor
  • 2003-2004 Infiniti M45 Upstream Passenger Side O2 Oxygen Sensor
  • 2002-2005 Infiniti Q45 Upstream Passenger Side O2 Oxygen Sensor
  • 2006 Infiniti Q45 (Built Before 12/05 Production Date) Upstream Passenger Side O2 Oxygen Sensor
  • 2002-2003 Nissan Altima L4 2.5L Upstream O2 Oxygen Sensor
  • 2003 Nissan Murano Upstream O2 Oxygen Sensor
  • 2002 Nissan Sentra L4 1.8L (excluding California Emissions) (excluding Clean Air Vehicle (CAV)) Upstream Passenger Side O2 Oxygen Sensor
  • 2002-2003 Nissan Sentra L4 2.5L Upstream O2 Oxygen Sensor
  • 2004 Nissan Sentra L4 2.5L with California Emissions Upstream O2 Oxygen Sensor

Product Reviews

5.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Good part matched the original perfect good shipping arrived on time
April 30, 2022
over 2 years ago
Rated 5 out of 5
I am extremely impressed with the part that was delivered to me!
My new sensor has my car running like she’s brand spanking new ;) I’m loving it!
February 23, 2018
over 6 years ago