1. Toyota Tacoma（incl Tacoma Cross） O2 sensor

Original part numbers and OE NO.
Upstream(Front)Oxygen Sensor part No.（Bank 1 Sensor 1）：
Original part numbers：89467-04130（2016-2023 3.5L V6）
OE NO.：Denso 234-9145（compatible with Bosch 16606）
Downstream(Rear) Oxygen Sensor part No.（Bank 1 Sensor 2）：
Original part numbers：89465-04420（2016-2023）
OE NO.：Denso 234-4048（compatible with NTK 24848）
​​​
Defender Oxygen Sensor Fault Codes&Symptom Signs
P0130：Low voltage in front oxygen sensor circuit (common with worn wiring harnesses or poisoned sensors)
P0135: Front Oxygen Heating Circuit Malfunction (need to check fuse F15 or heating element)
P0150: Abnormal signal from rear oxygen sensor (contamination or loose installation)
How to remove and how to clean？
Remove Tool:22mm Oxygen Sensor Sleeve (Side Opening Design) + PB Blaster Penetrant
Remove Steps.
Disconnect the negative battery terminal and lift the vehicle to a safe height.
Remove the exhaust manifold heat shield and locate the front oxygen sensor (in front of the three-way catalytic converter).
Spray PB Blaster to loosen threads, unscrew sensor counterclockwise
Cleaning: Soak carbon in 5% ferric chloride solution, clean probe with soft brush (no water washing).
Apply anti-seize lubricant and torque to 30-40 N・m during installation.
How much oxygen sensor cost to replace？
Auto Parts:Original Front O2 Sensor$236-$295，generic $120-$180；Original rear O2 Sensor$150-$220，generic $90-$150
labor:$$120-$200(heat shields need to be removed for preoxygen)

2. Toyota Tundra O2 sensor

Original part numbers and OE NO.
Upstream(Front)Oxygen Sensor part No.（Bank 1 Sensor 1）：
Original part numbers：89467-04060（2007-2016 5.7L V8）
OE NO.：Denso 234-9145（compatible with Bosch 16606）
Downstream(Rear) Oxygen Sensor part No.（Bank 1 Sensor 2）：
Original part numbers：89465-0C190（2007-2016）
OE NO.：Denso 234-4048（compatible with Walker 350-34269）
​​​
Defender Oxygen Sensor Fault Codes&Symptom Signs
P0130：Front oxygen sensor signal drifting (poisoning due to long-term use of leaded gasoline)
P0136: Rear oxygen sensor not responding (catalytic converter failure causing sensor overload)
P0171: mixture too lean (sensor false alarm need to check intake air leak)
How to remove and how to clean？
Remove Tool:22mm Oxygen Sensor Sleeve + Torque Wrench
Remove Steps.
Disconnect the negative battery terminal and remove the air filter assembly.
Remove the exhaust manifold heat shield and locate the front oxygen sensor.
Spray WD-40 to loosen threads, use a socket to unscrew counterclockwise
Cleaning: Spray probe with special oxygen sensor cleaner (e.g. CRC 05103)
Installation torque 35 N・m, avoid contact with sensor ceramic body
How much oxygen sensor cost to replace？
Auto Parts:Original Front O2 Sensor$186-$223，generic $100-$150；Original rear O2 Sensor$115-$165，generic $70-$120
labor:$$150-$250(requires disassembly of air intake system)

3. Toyota Camry O2 sensor

Original part numbers and OE NO.
Upstream(Front)Oxygen Sensor part No.（Bank 1 Sensor 1）：
Original part numbers：89467-04090（2018-2023 2.5L）
OE NO.：Denso 234-9140（compatible with Bosch 15968）
Downstream(Rear) Oxygen Sensor part No.（Bank 1 Sensor 2）：
Original part numbers：89465-04430（2018-2023）
OE NO.：Denso 234-4261（compatible with NTK 24047）
​​​
Defender Oxygen Sensor Fault Codes&Symptom Signs
P0133：Delayed response from front oxygen sensor (aging sensor or carbon buildup)
P0141: Rear Oxygen Heater Circuit Failure (check ECU output voltage)
P0420: Catalytic converter inefficient (rear oxygen sensor false alarm needs verification)
How to remove and how to clean？
Remove Tool:22mm Oxygen Sensor Sleeve + Borescope
Remove Steps.
Disconnect the negative battery terminal and remove the lower engine guard.
Locate the front oxygen sensor (at the back of the exhaust manifold) and spray with penetrant.
Use a socket to unscrew counterclockwise, taking care to protect the wire harness.
Cleaning: Remove carbon deposits with an ultrasonic cleaner (40kHz).
Torque to 30 N・m during installation, check the sealing of the wiring harness plug.
How much oxygen sensor cost to replace？
Auto Parts:Original Front O2 Sensor$179-$235，generic $90-$140；Original rear O2 Sensor$106-$157，generic $60-$100
labor:$$100-$180(Easier to maneuver in the front oxygen position)

4. Toyota Highlander O2 sensor

Original part numbers and OE NO.
Upstream(Front)Oxygen Sensor part No.（Bank 1 Sensor 1）：
Original part numbers：89467-0E140（2010-2017 3.5L）
OE NO.：Denso 234-9145（compatible with Bosch 16606）
Downstream(Rear) Oxygen Sensor part No.（Bank 1 Sensor 2）：
Original part numbers：89465-0E120（2014-2017）
OE NO.：Denso 234-4048（compatible with Walker 350-34269）
​​​
Defender Oxygen Sensor Fault Codes&Symptom Signs
P0137：Rear oxygen sensor voltage too low (sensor poisoning or wiring harness short circuit)
P0172: mixture too thick (front oxygen false alarm need to check fuel pressure)
P0430: Catalytic converter low efficiency (abnormal rear oxygen signal needs to be verified)
How to remove and how to clean？
Remove Tool:22mm Oxygen Sensor Sleeve + Universal Joint
Remove Steps.
Disconnect the negative battery terminal and remove the hood.
Locate the front oxygen sensor (middle of exhaust manifold) and spray it with loosener.
Unscrew counterclockwise using a universal joint socket to avoid damaging the wiring harness.
Cleaning: Soak for 15 minutes in special oxygen sensor cleaner.
Torque to 30 N・m during installation, check harness connector pins.
How much oxygen sensor cost to replace？
Auto Parts:Original Front O2 Sensor$190-$222，generic $110-$160；Original rear O2 Sensor$126-$158，generic $80-$130
labor:$$120-$200(partial piping disassembly required)

5. Toyota RAV4 O2 sensor

Original part numbers and OE NO.
Upstream(Front)Oxygen Sensor part No.（Bank 1 Sensor 1）：
Original part numbers：89467-04140（2016-2023 2.5L）
OE NO.：Denso 234-9145（compatible with Bosch 16606）
Downstream(Rear) Oxygen Sensor part No.（Bank 1 Sensor 2）：
Original part numbers：89465-04420（2016-2023）
OE NO.：Denso 234-4048（compatible with NTK 24848）
​​​
Defender Oxygen Sensor Fault Codes&Symptom Signs
P0134：No signal from front oxygen sensor (broken wiring harness or damaged sensor)
P0138: High voltage at front oxygen sensor (shorted sensor or ECU failure)
P0420: Catalytic converter low efficiency (abnormal rear oxygen signal needs to be verified)
How to remove and how to clean？
Remove Tool:22mm Oxygen Sensor Sleeve + Torque Wrench
Remove Steps.
Disconnect the negative battery terminal and lift the vehicle.
Remove the exhaust manifold heat shield and locate the front oxygen sensor.
Spray PB Blaster loose threads and unscrew counterclockwise
Cleaning: Soak carbon deposits in 5% ferric chloride solution and clean with a soft brush.
Torque to 30 N・m during installation, check the sealing of the harness plug.
How much oxygen sensor cost to replace？
Auto Parts:Original Front O2 Sensor$234-$295，generic $120-$180；Original rear O2 Sensor$150-$220，generic $90-$150
labor:$$100-$180(Easier to maneuver in the front oxygen position)

6. Toyota 4Runner O2 sensor

Original part numbers and OE NO.
Upstream(Front)Oxygen Sensor part No.（Bank 1 Sensor 1）：
Original part numbers：89467-04060（2003-2023 4.0L V6）
OE NO.：Denso 234-9145（compatible with Bosch 16606）
Downstream(Rear) Oxygen Sensor part No.（Bank 1 Sensor 2）：
Original part numbers：89465-04420（2003-2023）
OE NO.：Denso 234-4048（compatible with NTK 24848）
​​​
Defender Oxygen Sensor Fault Codes&Symptom Signs
P0132：Front oxygen sensor voltage too high (shorted sensor or wiring harness lap)
P0140: Invalid signal from rear oxygen sensor (caused by clogged catalytic converter)
P0430: Catalytic converter low efficiency (abnormal rear oxygen signal needs to be verified)
How to remove and how to clean？
Remove Tool:22mm Oxygen Sensor Sleeve + Universal Joint
Remove Steps.
Disconnect the negative battery terminal and remove the lower engine guard.
Locate the front oxygen sensor (rear of exhaust manifold) and spray it with loosener.
Use a universal joint socket to unscrew counterclockwise, pay attention to protect the wiring harness
Cleaning: Spray the probe with special oxygen sensor cleaner.
Torque to 30 N・m during installation, check harness connector pins.
How much oxygen sensor cost to replace？
Auto Parts:Original Front O2 Sensor$186-$223，generic $100-$150；Original rear O2 Sensor$115-$165，generic $70-$120
labor:$$120-$200(partial piping disassembly required)

7. Toyota Sienna O2 sensor

Original part numbers and OE NO.
Upstream(Front)Oxygen Sensor part No.（Bank 1 Sensor 1）：
Original part numbers：89467-41040（2013-2023 3.5L V6）
OE NO.：Denso 234-9145（compatible with Bosch 16606）
Downstream(Rear) Oxygen Sensor part No.（Bank 1 Sensor 2）：
Original part numbers：89465-08060（2013-2023）
OE NO.：Denso 234-4048（compatible with Walker 350-34269）
​​​
Defender Oxygen Sensor Fault Codes&Symptom Signs
P0135：Fault in front oxygen heating circuit (check fuse F15 or heating element)
P0155: Rear oxygen heating circuit fault (need to check ECU output voltage)
P0420: Catalytic converter inefficient (abnormal rear oxygen signal needs to be verified)
How to remove and how to clean？
Remove Tool:22mm Oxygen Sensor Sleeve + Torque Wrench
Remove Steps.
Disconnect the negative battery terminal and remove the air intake pipe.
Locate the front oxygen sensor (middle of the exhaust manifold) and spray it with loosener.
Use a socket to unscrew counterclockwise, pay attention to protect the wiring harness.
Cleaning: Soak for 15 minutes in special oxygen sensor cleaner.
Torque to 30 N・m during installation and check the sealing of the wiring harness plug.
How much oxygen sensor cost to replace？
Auto Parts:Original Front O2 Sensor$190-$222，generic $110-$160；Original rear O2 Sensor$126-$158，generic $80-$130
labor:$$100-$180(Easier to maneuver in the front oxygen position)

8. Toyota Corolla O2 sensor

Original part numbers and OE NO.
Upstream(Front)Oxygen Sensor part No.（Bank 1 Sensor 1）：
Original part numbers：89467-04090（2020-2023 2.0L）
OE NO.：Denso 234-9140（compatible with Bosch 15968）
Downstream(Rear) Oxygen Sensor part No.（Bank 1 Sensor 2）：
Original part numbers：89465-04430（2020-2023）
OE NO.：Denso 234-4261（compatible with NTK 24047）
​​​
Defender Oxygen Sensor Fault Codes&Symptom Signs
P0130：Low voltage to front oxygen sensor circuit (worn harness or poisoned sensor)
P0134: No signal from front oxygen sensor (damaged sensor or ECU failure)
P0171: mixture too lean (sensor false alarm needs to be checked for intake air leaks)
How to remove and how to clean？
Remove Tool:22mm Oxygen Sensor Sleeve + Borescope
Remove Steps.
Disconnect the negative battery terminal and remove the hood.
Locate the front oxygen sensor (at the back of the exhaust manifold) and spray it with loosener.
Use a socket to unscrew counterclockwise, taking care to protect the wire harness.
Cleaning: Remove carbon deposits with an ultrasonic cleaner (40kHz).
Torque to 30 N・m during installation, check the sealing of the wiring harness plug.
How much oxygen sensor cost to replace？
Auto Parts:Original Front O2 Sensor$179-$235，generic $90-$140；Original rear O2 Sensor$106-$157，generic $60-$100
labor:$$80-$150(Easier to maneuver in the front oxygen position)

9. Toyota Hilux O2 sensor

Original part numbers and OE NO.
Upstream(Front)Oxygen Sensor part No.（Bank 1 Sensor 1）：
Original part numbers：89467-04130（2015-2023 2.8L Diesel）
OE NO.：Denso 234-9145（compatible with Bosch 16606）
Downstream(Rear) Oxygen Sensor part No.（Bank 1 Sensor 2）：
Original part numbers：89465-04420（2015-2023）
OE NO.：Denso 234-4048（compatible with NTK 24848）
​​​
Defender Oxygen Sensor Fault Codes&Symptom Signs
P0130：Low voltage in front oxygen sensor circuit (frayed wiring harness or poisoned sensor)
P0135: Front Oxygen Heating Circuit Malfunction (need to check fuse F15 or heating element)
P0150: Abnormal signal from rear oxygen sensor (contamination or loose installation)
How to remove and how to clean？
Remove Tool:22mm Oxygen Sensor Sleeve + PB Blaster
Remove Steps.
Disconnect the negative battery terminal and lift the vehicle.
Remove the exhaust manifold heat shield and locate the front oxygen sensor.
Spray PB Blaster loose threads and unscrew counterclockwise
Cleaning: Soak carbon deposits in 5% ferric chloride solution and clean with a soft brush.
Torque to 30 N・m during installation, check the sealing of the harness plug.
How much oxygen sensor cost to replace？
Auto Parts:Original Front O2 Sensor$236-$295，generic $120-$180；Original rear O2 Sensor$150-$220，generic $90-$150
labor:$$120-$200(heat shield to be removed for preoxygen)

10. Toyota Land Cruiser O2 sensor

Original part numbers and OE NO.
Upstream(Front)Oxygen Sensor part No.（Bank 1 Sensor 1）：
Original part numbers：89467-04060（2003-2023 4.7L V8）
OE NO.：Denso 234-9145（compatible with Bosch 16606）
Downstream(Rear) Oxygen Sensor part No.（Bank 1 Sensor 2）：
Original part numbers：89465-04420（2003-2023）
OE NO.：Denso 234-4048（compatible with NTK 24848）
​​​
Defender Oxygen Sensor Fault Codes&Symptom Signs
P0130：Low voltage in front oxygen sensor circuit (frayed wiring harness or poisoned sensor)
P0135: Front Oxygen Heating Circuit Malfunction (need to check fuse F15 or heating element)
P0150: Abnormal signal from rear oxygen sensor (contamination or loose installation)
How to remove and how to clean？
Remove Tool:22mm Oxygen Sensor Sleeve + Torque Wrench
Remove Steps.
Disconnect the negative battery terminal and remove the lower engine guard.
Locate the front oxygen sensor (behind the exhaust manifold) and spray it with loosener.
Use a socket to unscrew counterclockwise, pay attention to protect the wiring harness
Cleaning: Spray the probe with special oxygen sensor cleaner.
Torque to 30 N・m during installation, check harness connector pins.
How much oxygen sensor cost to replace？
Auto Parts:Original Front O2 Sensor$186-$223，generic $100-$150；Original rear O2 Sensor$115-$165，generic $70-$120
labor:$$150-$250(partial piping disassembly required)

11. Toyota Yaris O2 sensor

Original part numbers and OE NO.
Upstream(Front)Oxygen Sensor part No.（Bank 1 Sensor 1）：
Original part numbers：89467-04090（2020-2023 1.5L）
OE NO.：Denso 234-9140（compatible with Bosch 15968）
Downstream(Rear) Oxygen Sensor part No.（Bank 1 Sensor 2）：
Original part numbers：89465-04430（2020-2023）
OE NO.：Denso 234-4261（compatible with NTK 24047）
​​​
Defender Oxygen Sensor Fault Codes&Symptom Signs
P0130：Low voltage to front oxygen sensor circuit (worn harness or poisoned sensor)
P0134: No signal from front oxygen sensor (damaged sensor or ECU failure)
P0171: mixture too lean (sensor false alarm needs to be checked for intake air leaks)
How to remove and how to clean？
Remove Tool:22mm Oxygen Sensor Sleeve + Borescope
Remove Steps.
Disconnect the negative battery terminal and remove the hood.
Locate the front oxygen sensor (at the back of the exhaust manifold) and spray it with loosener.
Use a socket to unscrew counterclockwise, taking care to protect the wire harness.
Cleaning: Remove carbon deposits with an ultrasonic cleaner (40kHz).
Torque to 30 N・m during installation, check the sealing of the wiring harness plug.
How much oxygen sensor cost to replace？
Auto Parts:Original Front O2 Sensor$179-$235，generic $90-$140；Original rear O2 Sensor$106-$157，generic $60-$100
labor:$$80-$150(Easier to maneuver in the front oxygen position)

12. Toyota C-HR O2 sensor

Original part numbers and OE NO.
Upstream(Front)Oxygen Sensor part No.（Bank 1 Sensor 1）：
Original part numbers：89467-04090（2020-2023 2.0L）
OE NO.：Denso 234-9140（compatible with Bosch 15968）
Downstream(Rear) Oxygen Sensor part No.（Bank 1 Sensor 2）：
Original part numbers：89465-04430（2020-2023）
OE NO.：Denso 234-4261（compatible with NTK 24047）
​​​
Defender Oxygen Sensor Fault Codes&Symptom Signs
P0130：Low voltage to front oxygen sensor circuit (worn harness or poisoned sensor)
P0134: No signal from front oxygen sensor (damaged sensor or ECU failure)
P0171: mixture too lean (sensor false alarm needs to be checked for intake air leaks)
How to remove and how to clean？
Remove Tool:22mm Oxygen Sensor Sleeve + Borescope
Remove Steps.
Disconnect the negative battery terminal and remove the hood.
Locate the front oxygen sensor (at the back of the exhaust manifold) and spray it with loosener.
Unscrew counterclockwise using a socket, taking care to protect the wiring harness.
Cleaning: Remove carbon deposits with an ultrasonic cleaner (40kHz).
Torque to 30 N・m during installation, check the sealing of the wiring harness plug.
How much oxygen sensor cost to replace？
Auto Parts:Original Front O2 Sensor$179-$235，generic $90-$140；Original rear O2 Sensor$106-$157，generic $60-$100
labor:$$80-$150(Easier to maneuver in the front oxygen position)
Technical Description
Sensor classification:
Front Oxygen Sensor (upstream): broadband (Air-Fuel Ratio Sensor) for closed loop control
Rear Oxygen Sensor (Downstream): Narrow Frequency (O2 Sensor) for monitoring catalytic converter efficiency
Troubleshooting process:
Use OBD-II diagnostic instrument to read the real-time data flow
Measure the sensor heating circuit resistance (normal value: 2-5Ω)
Check the conductivity of the wiring harness and the voltage of the plug pins.
Cleaning Precautions:
Prohibit the use of acidic cleaners (e.g. carburetor cleaner)
Avoid physical damage to the sensor probe
Drying is required after cleaning
Installation specifications:
Torque values follow strict OEM standards
Use of anti-seize lubricants (e.g. copper-based anti-seize)
Avoid contamination of sensor threads

oxygen sensor cost to replace:

Maintenance Recommendations.
Regular maintenance: check the oxygen sensor status every 100,000 km.
Cleaning agent of choice: Use special oxygen sensor cleaner (e.g. CRC 05103)
Wiring harness inspection: Focus on the insulation of the wiring harness in high temperature areas.
Catalytic Converter Correlation: Rear Oxygen Sensor Failure Requires Simultaneous Check of Catalytic Converter Efficiency
Diagnostic Remove Tool: Toyota Techstream is recommended for data streaming analysis.
This document covers the technical parameters, troubleshooting and repair costs of the oxygen sensors of the major Toyota models.Data sources include official Toyota parts catalogs, repair manuals, and authoritative third-party databases (e.g. Autozone, RockAuto).The actual repair needs to be confirmed according to the specific year and configuration of the vehicle.
Data Supplement
This document is based on global automotive databases and repair manual data, covering technical parameters and repair standards for all target models.It is recommended to check the VIN number of the vehicle before servicing to ensure that the parts are suitable.
Part number suitability: Some part numbers may be slightly adjusted due to differences in engine models and years, it is recommended to check the specific suitability information through the VIN code.
Fault Code Diagnosis: Oxygen sensor failure may be related to the ECU software version, it is recommended to use a special diagnostic instrument for parameter calibration.
(Note: The above prices may fluctuate ±15% due to regional and channel differences, real-time data suggest checking local dealers)
Provide for Toyota Tacoma/Tundra/Camry/Highlander/RAV4/Cross/4Runner/Sienna/Sequoia/Land Cruiser/Corolla/Yaris/Hilux/C-HR good price O2 sensor OEM repair carparts and auto replacement accessories oxygen sensor