AM Autoparts
List Price:$52.95
AM Price:$28.99
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Part Number: AM-34404778

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:

WARNING: 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:

  • Standard Motor Products SG1843
  • OE # 8946529525
  • Walker Products Inc. 250-24155

Vehicle Fit

  • 1999-2003 Lexus RX300 Downstream O2 Oxygen Sensor
  • 1992-1997 Lexus SC300 L6 3.0L Downstream O2 Oxygen Sensor
  • 2001-2003 Toyota Highlander V6 3.0L Downstream O2 Oxygen Sensor
  • 1998-2000 Toyota Rav4 Downstream O2 Oxygen Sensor
  • 1993-1997 Toyota Supra Downstream O2 Oxygen Sensor
  • 1993-1997 Toyota Supra Turbo Downstream O2 Oxygen Sensor

Product Reviews

5.0 / 5.0
1 Review
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Nice quality, easy to install
Nice quality and nice price, no problem to install. Did the job.
September 18, 2018
over 3 years ago