How to service an oxygen sensor on Subaru Legacy?

In the process of oxygen sensor servicing, the pigtail and electrical connector that are permanently attached to it must be handled cautiously so as not to spoil them. Do not allow oil, dirt or any other foreign matter to touch the electrical connector or sensor; avoid using cleaning solvents. Do not drop or handle rough the sensor. The negative terminal cable should be disconnected, and the vehicle jacked up securely on jack stands in order to replace the sensor. In non-turbocharged models, behind flange between exhaust manifolds and front end of catalytic converter is where upstream oxygen sensor is located. This connector will usually be found at back of engine compartment traced along its harness by electrically wiring up with a sensor inside it that needs disconnection while removing unscrewing & taking out a connector.Similarly, remove this clip before unplugging it from whatever you are indicating and take away these clips from there.Do ensure that no anti-seize compound is applied on threads if installing old one.In turbocharged models however, the upstream oxygen sensor can be seen on the right exhaust manifold itself. Separate an electrical connector and detach clips holding-sensor harnesses. As for a right-front wheel, remove it together with service hole cover in wheel housing splash shield.The oxygen sensor screws out and comes off from right exhaust manifold.For location of downstream catalytic converter you'll find downstream oxygen sensors.The respective harnessed for such sensors are traceable through their connectors which may also require removing and turning out among others.Finally undo this screw then take out any left over fragment involving catalytic converter after having unscrewed it earlier.Hence no antiseptic lubricant is necessary for application into these.

Genuine Subaru Legacy Oxygen Sensor

Oxygen O2 Sensor

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50 Oxygen Sensors found

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Subaru Legacy Oxygen Sensor Assembly
Part Number: 22690AA96A
$133.37 MSRP: $193.28
You Save: $59.91 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Oxygen; Oxygen Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2013-2019 Subaru Legacy | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.5L H4, 2.5L H4 DOHC
View related parts
Subaru Legacy Oxygen Sensor Air Fuel Ratio Sensor
Part Number: 22641AA280
$191.75 MSRP: $280.33
You Save: $88.58 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Air/Fuel Ratio; Front Oxygen Sensor, Oxygen Sensor, Sensor
- Replaces: 22641AA140
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2003-2004 Subaru Legacy | Baja, Baja-S, Base, Brighton, Cold Weather, GT, L, L-S, Limited, SUS Limited | 2.5L H4
View related parts
Subaru Legacy Oxygen Sensor Assembly
Part Number: 22690AA68A
$105.02 MSRP: $152.20
You Save: $47.18 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Oxygen; Oxygen Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2014 Subaru Legacy | 3.0R, 3.0R Limited, 3.0R LL-Bean, 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring | 3.0L H6, 3.6L H6
View related parts
Subaru Legacy Oxygen Sensor Assembly
Part Number: 22690AA520
$192.66 MSRP: $281.67
You Save: $89.01 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Oxygen; Oxygen Sensor, Rear Oxygen Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004 Subaru Legacy | Baja-B | 2.5L H4 Turbo
View related parts
Subaru Legacy Air Fuel Ratio Sensor Assembly
Part Number: 22641AA140
$191.75 MSRP: $280.33
You Save: $88.58 (32%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Air/Fuel Ratio
- Replaced by: 22641AA280
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2003 Subaru Legacy | Baja, Baja-S, Base, Brighton, Cold Weather, GT, L, Limited, SUS Limited | 2.5L H4
View related parts
Subaru Legacy Air Fuel Ratio Sensor Assembly
Part Number: 22641AA66A
$150.83 MSRP: $220.52
You Save: $69.69 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Air/Fuel Ratio; Air/Fuel Sensor, Oxygen Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2013-2014 Subaru Legacy | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.5L H4 DOHC
View related parts
Subaru Legacy Oxygen Sensor Assembly
Part Number: 22690AA73A
$112.02 MSRP: $162.35
You Save: $50.33 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Oxygen; Oxygen Sensor
- Replaces: 22690AA43A
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1999-2004 Subaru Legacy | Baja, Baja-S, Base, Brighton, Cold Weather, GT, L, L-S, Limited, Out Back, Post, SUS, SUS Limited | 2.2L H4 Series, 2.5L H4
View related parts
Subaru Legacy Air Fuel Ratio Sensor Assembly
Part Number: 22641AA32A
$144.07 MSRP: $210.63
You Save: $66.56 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Air/Fuel Ratio; Oxygen Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2007 Subaru Legacy | GT, GT Limited | 2.5L H4 Turbo
View related parts
Subaru Legacy Oxygen Sensor Assembly
Part Number: 22690AA93A
$103.65 MSRP: $150.22
You Save: $46.57 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Oxygen; Oxygen Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2010-2012 Subaru Legacy | 2.5i, 2.5i Limited, 2.5i Premium | 2.5L H4 SOHC
View related parts
Subaru Legacy Oxygen Sensor Assembly
Part Number: 22690AA81A
$116.64 MSRP: $169.05
You Save: $52.41 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Oxygen; Oxygen Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2006-2009 Subaru Legacy | 2.5i, 2.5i Base, 2.5i Limited, Base | 2.5L H4
View related parts
Subaru Legacy Air Fuel Ratio Sensor Assembly
Part Number: 22641AA03C
$156.05 MSRP: $228.15
You Save: $72.10 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Air/Fuel Ratio; Oxygen Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2001-2004 Subaru Legacy | Flat6, Flat6 L.L.Bean, Flat6-S, SUS Flat6 | 3.0L H6
View related parts
Subaru Legacy Oxygen Sensor Assembly
Part Number: 22690AA491
$192.66 MSRP: $281.67
You Save: $89.01 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Oxygen; Oxygen Sensor, Rear Oxygen Sensor
- Replaces: 22690AA490
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004 Subaru Legacy | Baja-B | 2.5L H4 Turbo
View related parts
Subaru Legacy Air Fuel Ratio Sensor Assembly
Part Number: 22641AA36A
$152.34 MSRP: $222.72
You Save: $70.38 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Air/Fuel Ratio; Air/Fuel Sensor, Oxygen Sensor, Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2006-2009 Subaru Legacy | 2.5i, 2.5i Base, 2.5i Limited, Base | 2.5L H4
View related parts
Subaru Legacy Oxygen Sensor Assembly
Part Number: 22690AA43A
$112.02 MSRP: $162.35
You Save: $50.33 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Oxygen
- Replaced by: 22690AA73A
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1999-2003 Subaru Legacy | Baja, Baja-S, Base, Brighton, Cold Weather, GT, L, Limited, Out Back, Post, SUS, SUS Limited | 2.2L H4 Series, 2.5L H4
View related parts
Subaru Legacy Oxygen Sensor Assembly
Part Number: 22690AA70A
$115.93 MSRP: $168.02
You Save: $52.09 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Oxygen; Oxygen Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2009 Subaru Legacy | GT, GT Limited, XT Limited | 2.5L H4 Turbo
View related parts
Subaru Legacy Oxygen Sensor Assembly
Part Number: 22690AA290
$112.02 MSRP: $162.35
You Save: $50.33 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Oxygen; Oxygen Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1996-1999 Subaru Legacy | Brighton, GT, L, LS, LS-I, Out Back, Post, SUS | 2.2L H4 , 2.2L H4 (New EVAPO), 2.2L H4 Series, 2.5L H4
View related parts
Subaru Legacy Oxygen Sensor Assembly
Part Number: 22690AB08A
$159.27 MSRP: $232.85
You Save: $73.58 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Oxygen
- Replaces: 22690AB070
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2020-2021 Subaru Legacy | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.5L H4 DI
View related parts
Subaru Legacy Oxygen O2 Sensor
Part Number: 22641AA71A
$232.10 MSRP: $339.33
You Save: $107.23 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Air/Fuel Ratio; Air/Fuel Sensor, Oxygen Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2019 Subaru Legacy | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.5L H4
View related parts
Subaru Legacy Oxygen Sensor Assembly
Part Number: 22690AA38A
$115.95 MSRP: $168.05
You Save: $52.10 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Oxygen; Oxygen Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1999-2001 Subaru Legacy | Base, Brighton, Cold Weather, GT, L, Limited, Post | 2.2L H4 Series, 2.5L H4
View related parts
Subaru Legacy Oxygen Sensor Assembly
Part Number: 22690AA91A
$102.91 MSRP: $149.15
You Save: $46.24 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Oxygen; Oxygen Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2010-2012 Subaru Legacy | 2.5GT Limited, 2.5GT Premium | 2.5L H4 Turbo

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Subaru Legacy Oxygen Sensor

The Subaru Legacy Oxygen Sensor plays a significant role which is only a testament to why Subarus are/continue to be reliable. Intended to control the quantity of the undestroyed oxygen in the exhaust gases, the Oxygen Sensor is responsible for the precise tuning of the air-fuel mixture, which, in return, contributes to the increase in the fuel consumption rate, and the decrease in the hazardous emissions rate. This feedback mechanism enables the engine control computer to change the fuel injector timing and so the Subaru Legacy can run on a closed loop system that optimizes catalytic converter. Designed to fit a number of Subaru Legacy car models, the Oxygen Sensor utilizes zirconium dioxide the majority of the time and such types are narrow-band and wide-band providing the precise control over wide range of air-fuel mix. Another interesting feature of the Subaru Legacy Oxygen Sensor is its high durability or the ability of the device to work to the maximal level during any day of the car's usage. The work condition of the Oxygen Sensor should be check and maintain consistently because, if the components gets bad, it will affect the emission and the fuel consumption rate. On the topic of Subaru Legacy the car is associated with all-wheel drive and boxer engine signifying safety and reliability that makes Oxygen Sensor as part of car's success. Today Subaru Legacy is one of the prime-sellers with sales of more than 3 million automobiles worldwide the Oxygen Sensor is no exception to Subaru's dedication to performance and its impact on the environment.

Our website stands as the go-to online destination for OEM Subaru Legacy Oxygen Sensor. With complete lines of genuine Subaru Legacy Oxygen Sensor available at unbeatable market prices, we ensure top quality, reliability, and durability. Each part comes backed by the manufacturer's warranty, reinforcing your trust in our offerings.

Subaru Legacy Oxygen Sensor Parts Questions & Experts Answers

Oxygen Sensor Assembly
22690AA68A
Q: How to service an oxygen sensor on Subaru Legacy?
A:
In the process of oxygen sensor servicing, the pigtail and electrical connector that are permanently attached to it must be handled cautiously so as not to spoil them. Do not allow oil, dirt or any other foreign matter to touch the electrical connector or sensor; avoid using cleaning solvents. Do not drop or handle rough the sensor. The negative terminal cable should be disconnected, and the vehicle jacked up securely on jack stands in order to replace the sensor. In non-turbocharged models, behind flange between exhaust manifolds and front end of catalytic converter is where upstream oxygen sensor is located. This connector will usually be found at back of engine compartment traced along its harness by electrically wiring up with a sensor inside it that needs disconnection while removing unscrewing & taking out a connector.Similarly, remove this clip before unplugging it from whatever you are indicating and take away these clips from there.Do ensure that no anti-seize compound is applied on threads if installing old one.In turbocharged models however, the upstream oxygen sensor can be seen on the right exhaust manifold itself. Separate an electrical connector and detach clips holding-sensor harnesses. As for a right-front wheel, remove it together with service hole cover in wheel housing splash shield.The oxygen sensor screws out and comes off from right exhaust manifold.For location of downstream catalytic converter you'll find downstream oxygen sensors.The respective harnessed for such sensors are traceable through their connectors which may also require removing and turning out among others.Finally undo this screw then take out any left over fragment involving catalytic converter after having unscrewed it earlier.Hence no antiseptic lubricant is necessary for application into these.