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List Price:$49.95
AM Price:$18.99
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Part Number: AM-4038323114

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: Cancer and Reproductive Harm -

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:

  • Walker Products Inc. 250-23159

Vehicle Fit

  • 2001 Infiniti G20 (Built After 1/01 Production Date) Upstream O2 Oxygen Sensor
  • 2002 Infiniti G20 Upstream Bank 1 Sensor 1 O2 Oxygen Sensor
  • 2001 Nissan Altima L4 2.4L (Built After 12/01 Production Date) Upstream O2 Oxygen Sensor
  • 2002-2004 Nissan Frontier L4 2.4L Upstream O2 Oxygen Sensor
  • 2002-2004 Nissan Xterra L4 2.4L Upstream O2 Oxygen Sensor

Product Reviews

1.0 / 5.0
1 Review
5 Stars
4 Stars
3 Stars
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1 Star
Rated 1 out of 5
The cord was too short and I couldn't use it. There was no leeway, and it fit tightly.
November 13, 2017
over 7 years ago