Links more
Discussion Forums
Good Links

Oxygen / AFR Sensors

Oxygen Sensors

Superior design maximizes engine performance and fuel efficiency

DENSO's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to monitor the air fuel mixture under idle, moderate acceleration and cruise conditions. Under heavy acceleration the oxygen sensor goes into "open loop," which basically means that the engine management computer system ignores the oxygen sensor. Oxygen sensors have a smaller range of limits in detecting and adjusting the difference from an optimum air/fuel ratio.

As the automotive industry continues to improve on their standards DENSO is keeping the pace with advancements in our engineering to meet the demands from the industry. Also, as car owners are holding on to their vehicles for longer periods, DENSO continues to make auto parts available for those critical replacement parts for all applications.

Oxygen Sensors

Oxygen sensors, also known as Lambda sensors or O2 sensors among some vehicle manufacturers, are among the most sensitive and critical components on your car's engine. Earlier fuel injection systems employed one oxygen sensor in the exhaust system to maintain closed-loop air/fuel mixture control. However, today's engines may use as many as four sensors, which monitor not only exhaust gas oxygen content but catalytic converter efficiency as well. In order to perform these functions properly, the sensors must adhere to OE standards within incredibly close tolerances. A malfunctioning or incorrectly calibrated oxygen sensor can hurt driveability and illuminate the malfunction indicator, resulting in costly and time-consuming repairs. DENSO First Time Fit® oxygen sensors are designed to meet those tolerances and more. The DENSO oxygen sensor catalog offers one of the most complete product lines in the industry, from Acura to Volvo.

Illustration Details: 
  1. Porous PTFE Filter - Allows atmospheric oxygen to enter the sensor without permitting water or engine contaminants to seep into the casing.
  2. Robotic Laser Weld
  3. Aluminum-Oxide Trap Layer - Keeps silicone and lead outside the ceramic elient through DENSO's exclusive design, preventing damage to the platinum electrode.
  4. Stainless Steel Housing - Resists corrosion and contamination with a rugged, watertight body.
  5. Double Protection Cover - Maintains proper unit temperature for quicker response times and protects the ceramic element against silicone and lead poisoning.
Features: 
  • Corrosion-resistant stainless steel construction
  • PTFE filter blocks efficiency-robbing contaminants
  • Refined zirconia element improves sensor response
Benefits: 
  • Superior design maximizes engine performance and fuel efficiency while reducing fuel consumption and harmful emissions
  • First Time Fit® delivers the right part the first time
  • Ensures smog test compliance
All Denso Oxygen sensors shipped from URD contain the needed gaskets or anti-sieze depending on type of sensor.  They are direct plug in sensors just like the ones that came on your vehicle from Toyota.


FJ Cruiser:

2009 V6 - 4.0 Front = 234-9026

2009 V6 - 4.0 Rear = 234-4260

2008 V6 - 4.0 Front = 234-9051

2008 V6 - 4.0 Rear = 234-4260

2007 V6 - 4.0 Front = 234-9051

2007 V6 - 4.0 Rear = 234-4260

V6 4Runners:

2009 V6 - 4.0 Rear = 234-4260

2008 V6 - 4.0 Rear = 234-4260

2007 V6 - 4.0 Front = 234-9051

2007 V6 - 4.0 Rear = 234-4260

2006 V6 - 4.0 Front = 234-9051

2006 V6 - 4.0 Rear Left = 234-4261

2006 V6 - 4.0 Rear Right = 234-4260

2005 V6 - 4.0 Front = 234-9051

2005 V6 - 4.0 Rear Left = 234-4261

2005 V6 - 4.0 Rear Right = 234-4260

2004 V6 - 4.0 Front = 234-9055

2004 V6 - 4.0 Rear Left = 234-4804

2004 V6 - 4.0 Rear Right = 234-4805

2003 V6 - 4.0 Front = 234-9055

2003 V6 - 4.0 Rear Left =  234-4804

2003 V6 - 4.0 Rear Right = 234-4805

2001 & 2002 4WD & 2WD V6; Front: 234-9002, Rear: 234-4261

2000 Cali 4WD manual V6; Front: 234-9001, Rear: 234-4153 2000 Cali 2WD manual V6; Front: 234-9001, Rear: 234-4155

1999 & 2000 Cali auto, 2WD/4WD  V6; Front: 234-9002
1999 & 2000 Cali auto, 2WD V6; Rear: 234-4155                   1999 & 2000 Cali auto, 4WD V6; Rear: 234-4153


1999 California manual V6 2WD/4WD 4Runner; Front = 234-9003
1999 California manual V6 4Runner; 2WD Rear = 234-4155   1999 California manual V6 4Runner; 4WD Rear = 234-4153

1999 & 2000 49 State 2WD & 4WD auto V6; Front = 234-4162 1999 & 2000 49 State 2WD & 4WD auto V6; Rear = 234-4162

1999 & 2000 49 State manual V6 2WD; Front: 234-4162        1999 & 2000 49 State manual V6 4WD; Front: 234-4161         1999 & 2000 49 State manual V6 2WD & 4WD; Rear: 234-4154



1996-1998 4WD manual V6-3.4; Front = 234-4161
1996-1998 4WD manual; Rear = 234-4154

1998 2WD ALL Front = 234-4162; Rear 234-4154

1996-1998 Auto 4WD V6 3.4; Front = 234-4162
1996-1998 Auto 4WD V6 3.4; Rear = 234-4154

1997  Auto 2WD; V6 3.4 Front = 234-4162, Rear = 234-4153 1997  Manual 2WD; V6 3.4 Front = 234-4161, Rear = 234-4153

1996  All 2WD; V6 3.4 Front = 234-4162
1996  All 2WD; V6-3.4 Rear = 234-4153

2.7 & 2.4 V6 4Runners:
2000 California manual L4-2.7; Front = 234-9001
2000 California manual L4-2.7; Rear = 234-4622

1999 & 2000 California auto 2WD/4WD L4-2.7; Front = 234-9002
1999 & 2000 California auto 2WD L4-2.7; Rear = 234-4622         1999 & 2000 California auto 4WD L4-2.7; Rear = 234-4154


1999 California manual L4-2.7; Front = 234-9003
1999 California manual L4-2.7; Rear = 234-4622

1999 & 2000 49 State 2WD/4WD L4-2.7; Front = 234-4162
1999 & 2000 49 State 4WD L4-2.7; Rear = 234-4154            1999 & 2000 49 State 2WD L4-2.7; Rear = 234-4162

1998 2WD L4-2.7; Both Front & Rear: 234-4162

1996-1997 All 4WD & 2WD L4-2.7; Front = 234-4162
1996-1997 All 4WD L4-2.7; Rear = 234-4154                      1996-1997 All 2WD L4-2.7; Rear = 234-4153

1995 L4-2.4 California Front: 234-4151                                 1994 L4-2.4 California Front: 234-4072

T-100s:

1998-1995 V6-3.4 4WD Auto; Front = 234-4162, Rear = 234-4162
1998-1995 V6-3.4 2WD Auto; Front = 234-4153, Rear = 234-4161

1998-1995 V6-3.4 4WD Manual; Front = 234-4153, Rear = 234-4162

1998 V6-3.4 2WD; Manual Front = 234-4153, Rear = 234=4161

1997-1995 V6-3.4 2WD; Front = 234-4151, Rear =234-4161

 Tundras:
2003 V6-3.4 California Automatic; Front = 234-9001
2003 V6-3.4 California Automatic; Rear = 234-4161

2003 V6-3.4 California Manual; Front = 234-9003
2003 V6-3.4 California Manual; Rear = 234-4161

2003 V8-4.7 2WD & 4WD; Front = 234-4169

2002 V8-4.7 2WD & 4WD; Front = 234-4169
2002 V8-4.7 2WD & 4WD; Rear Left = 234-4154, Right Rear = 234-4162

2001 V8-4.7 2WD & 4WD; Front =234-4169
2001 V8-4.7 2WD & 4WD; Rear =234-4154

2001 V8-4.7; California Automatic; Front =234-9001
2001 V8-4.7; California Automatic; Rear =234-4154

2001 V8-4.7; California Manual; Front =234-9003
2001 V8-4.7; California Manual; Rear = 234-4154

2000 V6-3.4 Automatic; Front = 234-4162
2000 V6-3.4 Automatic; Rear = 234-4161

2000 V6-3.4 Manual; Front = 234-4161
2000 V6-3.4 Manual; Rear = 234-4161

2000 V8-4.7 2WD; Front = 234-4169
2000 V8-4.7 2WD; Rear = 234-4154

2000 V8-4.7 4WD; Front = 234-4169
2000 V8-4.7 4WD; Rear = 234-4154

2000 V8-4.7 4WD; Front = 234-4169
2000 V8-4.7 4WD; Rear = 234-4162

Tacomas:

2009 V6 - 4.0 Rear = 234-4260

2008 V6 - 4.0 Rear = 234-4260

2007 V6 - 4.0 Rear = 234-4260

2007 V6 - 4.0 Front = 234-9051

2006 V6 - 4.0 Front = 234-9051

2006 V6 - 4.0 Rear = 234-4260

2005 V6 - 4.0 Front = 234-9051

2005 V6 - 4.0 Rear = 234-4260

2004 V6 - 3.4 Auto Front = 234-9001

2004 V6 - 3.4 Manual Front = 234-9003

2004 V6 - 3.4 Rear = 234-4189

2003 V6 - 3.4 Auto Front = 234-9001

2003 V6 - 3.4 Manual Front = 234-9003

2003 V6 - 3.4 Rear = 234-4189

2002 V6-3.4 Auto; Front = 234-9001

2003 V6-3.4 Auto; Front = 234-9001

2003 V6-3.4 Manual; Front = 234-9003

2003 L4-2.4 Auto; Front = 234-9002

2003 L4-2.4 Manual; Front = 234-9001

2003 L4-2.7 All; Front = 234-9001


2002 V6-3.4 Manual; Front = 234-9003

2002 V6- 3.4 Auto; Front = 234-9001

2002 V6- 3.4 Rear = 234-4189

2002 L4-2.7 2WD; Front - 234-9001

2002 L4-2.4 Manual; Front = 234-9001

2002 L4-2.4 Auto; Front = 234-9002


2001 V6-3.4 California Auto = 234-9001

2001 V6-3.4 California Manual, Front = 234-9003

2001 V6-3.4 Rear = 234-4189

2001 L4-2.4 Auto; Front = 234-9002

2001 L4-2.4 Manual; Front = 234-9001

2001 L4-2.7 4WD Auto; Front = 234-9001

2001 L4-2.7 4WD Manual; Front = 234-9002

2001 L4-2.7 2WD Manual/Auto = 234-9001


1999/2000 V6-3.4 49 State 2WD (not Prerunner); Front = 234-4162
1999/2000 V6-3.4 49 State 2WD (not Prerunner); Rear = 234-4159

1999/2000 V6-3.4 49 State 2WD (Prerunner); Front = 234-4162
1999/2000 V6-3.4 49 State 2WD (Prerunner); Rear = 234-4153

1999/2000 V6-3.4 49 State 4WD Automatic; Front = 234-4161
1999/2000 V6-3.4 49 State 4WD Automatic; Rear = 234-4162

1999/2000 V6-3.4 49 State 4WD Manual; Front = 234-4161
1999/2000 V6-3.4 49 State 4WD Manual; Rear = 234-4154


2000 L4-2.4 49 State Automatic; Front = 234-4154
2000 L4-2.4 49 State Automatic; Rear = 234-4189

2000 L4-2.4 49 State Manual; Front = 234-4154
2000 L4-2.4 49 State Manual; Rear = 234-4189

2000 L4-2.7 49 State 2WD; Front = 234-4162
2000 L4-2.7 49 State 2WD; Front = 234-4159

2000 L4-2.7 49 State 4WD Automatic; Front = 234-4162
2000 L4-2.7 49 State 4WD Automatic; Front = 234-4153

2000 L4-2.7 49 State 4WD Manual; Front = 234-4162

2000 L4-2.7 49 State 4WD Manual; Front = 234-4162

2000 L4-2.7 California; Front = auto 234-9001

2000 L4-2.7 California; Front = manual 234-9002

2000 L4-2.7 California; Rear = 234-4189

2000 V6-3.4 California Automatic; Front = 234-9001
2000 V6-3.4 California Automatic; Rear = 234-4189

2000 V6-3.4 California Manual; Front = 234-9003
2000 V6-3.4 California Manual; Rear = 234-4189

1999-1998 L4-2.7 2WD; Front = 234-4162
1999-1998 L4-2.7 2WD; Rear = 234-4159

1999-1995 L4-2.4 Auto; Front = 234-4154
1999-1995 L4-2.4 Auto; Rear = 234-4153

1999-1995 L4-2.4 Manual; Front = 2334-4162
1999-1995 L4-2.4 Manual; Rear = 2334-4153

1999 L4-2.7; Front = 234-4162
1999 L4-2.7; Rear = 234-4153

1999 V6-3.4 2WD California; Front = 234-4162
1999 V6-3.4 2WD California; Rear = 234-4189

1999 V6-3.4 4WD California; Front = 234-4153
1999 V6-3.4 4WD California; Rear = 234-4189

1998-1995 L4-2.7; Front = 234-4162
1998-1995 L4-2.7; Rear = 234-4162

1998-1995 V6-3.4 2WD; Front = 234-4153
1998-1995 V6-3.4 2WD; Rear = 234-4153

1998-1995 V6-3.4 4WD; Front = 234-4161
1998-1995 V6-3.4 4WD; Rear = 234-4154

1998-1995 V6-3.4 Automatic; Front = 234-4162
1998-1995 V6-3.4 Automatic; Rear = 234-4162

1995 L4-2.7 Manual; Front = 234-4162
1995 L4-2.7 Manual; Rear = 234-4162


Let's See What We Have Here
Tacoma
Tacoma
Displaying 1 to 21 (of 21 products) Result Pages:  1 
 Denso Oxygen Sensor 234-4072 
 Denso Oxygen Sensor 234-4072 

 $75.99 
 Buy Now  
 Denso Oxygen Sensor 234-4139 
 Denso Oxygen Sensor 234-4139 

 $82.99 
 Buy Now  
 Denso Oxygen Sensor 234-4150 
 Denso Oxygen Sensor 234-4150 

 $76.99 
 Buy Now  
 Denso Oxygen Sensor 234-4152 
 Denso Oxygen Sensor 234-4152 

 $76.99 
 Buy Now  
 Denso Oxygen Sensor 234-4153 
 Denso Oxygen Sensor 234-4153 

 $76.99 
 Buy Now  
 Denso Oxygen Sensor 234-4154 
 Denso Oxygen Sensor 234-4154 

 $84.99 
 Buy Now  
 Denso Oxygen Sensor 234-4155 
 Denso Oxygen Sensor 234-4155 

 $79.99 
 Buy Now  
 Denso Oxygen Sensor 234-4159 
 Denso Oxygen Sensor 234-4159 

 $89.00 
 Buy Now  
 Denso Oxygen Sensor 234-4161 
 Denso Oxygen Sensor 234-4161 

 $79.99 
 Buy Now  
 Denso Oxygen Sensor 234-4162 
 Denso Oxygen Sensor 234-4162 

 $83.99 
 Buy Now  
 Denso Oxygen Sensor 234-4169 
 Denso Oxygen Sensor 234-4169 

 $79.99 
 Buy Now  
 Denso Oxygen Sensor 234-4189 
 Denso Oxygen Sensor 234-4189 

 $83.99 
 Buy Now  
 Denso Oxygen Sensor 234-4260 
 Denso Oxygen Sensor 234-4260 

 $107.00 
 Buy Now  
 Denso Oxygen Sensor 234-4261 
 Denso Oxygen Sensor 234-4261 

 $105.00 
 Buy Now  
 Denso Oxygen Sensor 234-9001 
 Denso Oxygen Sensor 234-9001 

 $152.50 
 Buy Now  
 Denso Oxygen Sensor 234-9002 
 Denso Oxygen Sensor 234-9002 

 $167.99 
 Buy Now  
 Denso Oxygen Sensor 234-9003 
 Denso Oxygen Sensor 234-9003 

 $152.50 
 Buy Now  
 Denso Oxygen Sensor 234-9007 
 Denso Oxygen Sensor 234-9007 

 $159.99 
 Buy Now  
 Denso Oxygen Sensor 234-9009 
 Denso Oxygen Sensor 234-9009 

 $159.99 
 Buy Now  
 Denso Oxygen Sensor 234-9051 
 Denso Oxygen Sensor 234-9051 

 $175.00 
 Buy Now  
 Denso Oxygen Sensor 234-9055 
 Denso Oxygen Sensor 234-9055 

 $175.00 
 Buy Now  
Displaying 1 to 21 (of 21 products) Result Pages:  1 
Shop By Vehicle
 
 

  
Shopping Cart more
0 items
News & Info
News & Info