This Oxygen O2 Sensor is a new, aftermarket replacement part that has the following specifications:

  • Four pin, 4 wire configuration
  • 2 Bolt flange style sensor
  • Correct wire length (13.77 Inches)
  • Upstream & Downstream Sensor as listed per applications
    • May be used in more then one position
  • Replaces dealer part numbers: 8946509040, 8946509110, 8946509170, 8946509180, 8946509320, 8946539655, 8946539735, 8946539835, 8946539855, 8946569175, 8946580011, 8946580034
  • Direct Fit
  • Correct Connector No cutting or splicing
  • Built and tested to strict quality control standards

Note: For clarification purposes:

  • Upstream location is between the catalytic converter and the engine
  • Downstream location is between the catalytic converter and the tailpipe

A direct replacement. If you have a bad O2 sensor causing your vehicle to idle poorly or fail an emission test then this is the part for you.

Our electrical and electronic parts are subject to strict quality control testing .  Once the item has been installed or plugged in, it is no longer eligible for a refund.  The item may be eligible for replacement, only if it is found to have a manufacturing defect. Before purchasing, please ensure proper diagnosis of the failed original part is performed

Note:  You may be required to reset the vehicle’s computer after installation of this part.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

  1. step : Identifying your Oxygen Sensors (0:57)
    • Upstream oxygen sensors are located in between the engine and the catalytic converter
    • Downstream oxygen sensors are located in the catalytic converter or farther away from the engine than the catalytic converter
    • Locate your vehicle's firing order diagram
    • The bank that contains cylinder one is bank one
    • The bank that does not contain cylinder one is bank two, even if it does not contain cylinder two

Tools needed for replacement:

    1A - No Tools Needed

  • No Tools Needed

5.0 / 5.0
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Perfect
Pain in the assignment to change but engine lights out. Off for emmision test.
February 5, 2018
Purchased
4 weeks ago
Purchasing Oxygen sensors
1A stands behind their products. The service is fast and the Customer Service is excellent. 5 stars!
January 25, 2017
Purchased
1 year ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 1 question Browse 1 question and 1 answer
Will this fit upstream 98 tacoma with manual transmission?
Donnie S on Nov 30, 2016
BEST ANSWER: no

How-to Video:

(03:08 min)

Tools List:

    1A - No Tools Needed

  • No Tools Needed



This part replaces:

  • OE # 8946509110
  • Standard Motor Products SG1839

Vehicle Fit

  • 1998-2005 Lexus LX470 Downstream O2 Oxygen Sensor
  • 1994 Toyota 4Runner Downstream O2 Oxygen Sensor V6 3.0L for Models with California Emissions
  • 1995 Toyota 4Runner Downstream O2 Oxygen Sensor V6 3.0L for Models with California Emissions (Built Before 10/31/95 Production Date)
  • 1996-2000 Toyota 4Runner Upstream O2 Oxygen Sensor L4 2.7L excluding California Emissions
  • 1996-2000 Toyota 4Runner Upstream O2 Oxygen Sensor V6 3.4L excluding California Emissions
  • 1996 Toyota 4Runner Downstream 4 Wheel Drive O2 Oxygen Sensor L4 2.7L Manual Transmission (Built After 11/95 Production Date)
  • 1996 Toyota 4Runner Downstream 4 Wheel Drive O2 Oxygen Sensor V6 3.4L (Built After 11/95 Production Date)
  • 1997-2000 Toyota 4Runner Downstream 4 Wheel Drive O2 Oxygen Sensor V6 3.4L
  • 1997-2000 Toyota 4Runner Downstream 4 Wheel Drive O2 Oxygen Sensor L4 2.7L Manual Transmission
  • 1998 Toyota Land Cruiser Downstream O2 Oxygen Sensor (Built After 1/98 Production Date)
  • 1999-2004 Toyota Land Cruiser Downstream O2 Oxygen Sensor
  • 1993-1995 Toyota Pickup Downstream 4 Wheel Drive (US Built Models) O2 Oxygen Sensor L4 2.4L with with 6 Foot Bed California Emissions
  • 1993-1995 Toyota Pickup Downstream (US Built Models) 2 Wheel Drive O2 Oxygen Sensor L4 2.4L California Emissions
  • 1995 Toyota Pickup Downstream O2 Oxygen Sensor V6 3.0L California Emissions
  • 2001-2003 Toyota Sequoia Downstream O2 Oxygen Sensor
  • 2004 Toyota Sequoia Downstream O2 Oxygen Sensor (Built Before 8/04 Production Date)
  • 1994-1998 Toyota T100 Downstream O2 Oxygen Sensor L4 2.7L
  • 1994 Toyota T100 Upstream O2 Oxygen Sensor V6 3.4L (Built After 8/94 Production Date)
  • 1994-1998 Toyota T100 Upstream O2 Oxygen Sensor L4 2.7L Automatic Transmission with
  • 1995-1996 Toyota T100 Upstream O2 Oxygen Sensor V6 3.4L Automatic Transmission with
  • 1997-1998 Toyota T100 Upstream O2 Oxygen Sensor V6 3.4L
  • 1995-2000 Toyota Tacoma Downstream O2 Oxygen Sensor L4 2.4L Automatic Transmission with
  • 1995-1998 Toyota Tacoma Downstream O2 Oxygen Sensor V6 3.4L
  • 1995-2000 Toyota Tacoma Downstream O2 Oxygen Sensor L4 2.7L
  • 1995-2000 Toyota Tacoma Upstream O2 Oxygen Sensor L4 2.4L
  • 1995-2000 Toyota Tacoma Upstream O2 Oxygen Sensor L4 2.7L
  • 1999-2000 Toyota Tacoma Downstream O2 Oxygen Sensor V6 3.4L excluding California Emissions
  • 2000 Toyota Tundra Upstream O2 Oxygen Sensor V6 3.4L (Built Before 8/00 Production Date) excluding California Emissions
  • 2000-2004 Toyota Tundra Downstream O2 Oxygen Sensor V8 4.7L
  • 2000-2004 Toyota Tundra Downstream O2 Oxygen Sensor V6 3.4L
Part #: 1AEOS00014

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