How to Install an Oxygen Sensor for Both Upstream and Downstream Positions on Chrysler Pacifica?

Be sure the engine is cool before you access the downstream oxygen sensor to prevent being burned by the exhaust manifold, exhaust pipes and catalytic converter(s). A tool designed for removing O2S is necessary and remember that the threads of new oxygen sensors come with anti-seize coating, so you do not need to add anything extra during the change. Attach the O2 sensor (2) to the catalytic converter (1) and turn it by 30 ft. lbs. to secure it properly (31 Nm). After that, plug the O2 sensor harness into the engine wiring harness (3) and fasten the O2 sensor clips to the engine or the body, if they exist. Whenever removing or changing the upstream oxygen sensor (1/1), be sure to check the engine's temperature and use the O2S tool. Place the O2 sensor (3) onto the catalytic converter (2) and fasten it by hand until it reaches 41 Nm (30 ft. lbs.). After that, link the O2 sensor pigtail harness to the engine wiring harness (1) and install the clips holding the O2S wire harness to the engine or body if present.

How to Safely Disconnect and Remove an Oxygen Sensor on Chrysler Pacifica?

There are two warmed oxygen sensors that the engine makes use of and when anyone is removing the sensor electrical connector; he or she should not directly pull on the wire winding into the detector. The best place to start is by removing the negative battery terminal cable then remove the upper O2 sensor connector. One uses a socket like snap-On YA8875 or use a crow foot wrench to remove an oxygen sensor.

OEM Chrysler Pacifica Oxygen Sensor

Oxygen O2 Sensor

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9 Oxygen Sensors found

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Chrysler Pacifica Oxygen Sensor, Front Passenger Side Part Number: 5149180AB
$123.50 MSRP: $182.00
You Save: $58.50 (33%)
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Product Specifications
- Other Name: Sensor - Oxygen; Oxygen Sensor, Front, Front Left, Front Right, Rear, Rear Left, Rear Right; Oxygen Sensor; includes upstream and downstream sensors for both driver and passenger sides.
- Position: Front Passenger Side
- Replaces: 5149180AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2017-2025 Chrysler Pacifica | AWD Launch Edition, Hybrid Limited, Hybrid Pinnacle, Hybrid Platinum, Hybrid Premium, Hybrid Premium S Appearance, Hybrid Road Tripper, Hybrid S Appearance, Hybrid Select, Hybrid Touring, Hybrid Touring L, Hybrid Touring Plus, L, LX, Limited, Pinnacle, Select, Touring, Touring L, Touring L Plus, Touring Plus | 3.6L V6, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS, 6 Cyl 3.6 L PLUG-IN HYBRID EV-GAS (PHEV)
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Chrysler Pacifica Oxygen Sensor, Front Part Number: 56029050AA
$77.38 MSRP: $114.00
You Save: $36.62 (33%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor - Oxygen; Oxygen Sensor, Front, Front Right, Rear, Rear Left, Rear Right; Rear Oxygen Sensor; Front Oxygen Sensor; Lower Oxygen Sensor; Sensor Oxygen
- Position: Front
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2005-2008 Chrysler Pacifica | Base, LX | 6 Cyl 3.8 L GAS
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Chrysler Pacifica Oxygen Sensor, Front Driver Side Part Number: 56028998AB
$94.67 MSRP: $141.00
You Save: $46.33 (33%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor - Oxygen; Oxygen Sensor, Front, Front Left, Rear, Rear Right; Rear Oxygen Sensor; Front Oxygen Sensor; Sensor Oxygen
- Position: Front Driver Side
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2005-2006 Chrysler Pacifica | Base, Limited, Touring | 6 Cyl 3.5 L GAS
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Chrysler Pacifica Oxygen Sensor, Front Driver Side Part Number: 56029049AA
$97.32 MSRP: $144.00
You Save: $46.68 (33%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor - Oxygen; Oxygen Sensor, Front, Front Left, Front Right, Rear, Rear Left, Rear Right; Rear Oxygen Sensor; Front Oxygen Sensor; Upper Oxygen Sensor; Lower Oxygen Sensor; Sensor Oxygen
- Position: Front Driver Side
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2007-2008 Chrysler Pacifica | Base, LX, Limited, Touring | 6 Cyl 4.0 L GAS
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Chrysler Pacifica Oxygen Sensor, Rear Part Number: 4727936AD
$120.16 MSRP: $181.00
You Save: $60.84 (34%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor - Oxygen; Oxygen Sensor, Rear
- Position: Rear
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2004-2005 Chrysler Pacifica | Base, Limited, Touring | 6 Cyl 3.5 L GAS
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Chrysler Pacifica Oxygen Sensor, Rear Part Number: 56029085AA
$85.52 MSRP: $127.00
You Save: $41.48 (33%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor - Oxygen; Oxygen Sensor, Front, Front Left, Rear; Front Oxygen Sensor; Sensor Oxygen
- Position: Rear
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2005-2008 Chrysler Pacifica | Base, LX | 6 Cyl 3.8 L GAS
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Chrysler Pacifica Oxygen Sensor, Front Part Number: 5149171AB
$129.16 MSRP: $190.00
You Save: $60.84 (33%)
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Product Specifications
- Other Name: Sensor - Oxygen; Oxygen Sensor, Front, Front Left, Front Right, Rear, Rear Left, Rear Right; Oxygen Sensors: Front, Rear, Upper, Lower, Passenger/Driver Side, Before/After Catalytic Converter.
- Position: Front
- Replaces: 5149171AA, 68066160AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2017-2025 Chrysler Pacifica | AWD Launch Edition, Hybrid Limited, Hybrid Pinnacle, Hybrid Platinum, Hybrid Premium, Hybrid Premium S Appearance, Hybrid Road Tripper, Hybrid S Appearance, Hybrid Select, Hybrid Touring, Hybrid Touring L, Hybrid Touring Plus, L, LX, Limited, Pinnacle, Select, Touring, Touring L, Touring L Plus, Touring Plus | 3.6L V6, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS, 6 Cyl 3.6 L PLUG-IN HYBRID EV-GAS (PHEV)
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Chrysler Pacifica Oxygen Sensor, Rear Part Number: 56028999AB
$197.65 MSRP: $294.00
You Save: $96.35 (33%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Oxygen; Oxygen Sensor, Front, Front Right, Rear, Rear Left; Rear Oxygen Sensor; Front Oxygen Sensor; Sensor Oxygen
- Position: Rear
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2005-2006 Chrysler Pacifica | Base, Limited, Touring | 6 Cyl 3.5 L GAS
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Chrysler Pacifica Oxygen Sensor, Front Part Number: 4727446AD
$119.04 MSRP: $179.00
You Save: $59.96 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Oxygen; Oxygen Sensor, Front
- Position: Front
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2004-2005 Chrysler Pacifica | Base, Limited, Touring | 6 Cyl 3.5 L GAS

Chrysler Pacifica Oxygen Sensor

Choose OEM Oxygen Sensor that meet Chrysler factory standards. Chrysler designs and tests every component for precision and durability. Each Oxygen Sensor follows strict manufacturing steps to lock in quality and fit. If your Chrysler Pacifica matters to you, OEM parts make the smart choice. You'll get the exact look, feel, and performance you expect. Shop genuine Pacifica parts at the highly competitive prices online. Enjoy a manufacturer's warranty, a hassle-free return policy, and rapid delivery. No more guesswork with off brands. Get genuine parts with exact fit and true factory performance. Shop with confidence today at JeepPartsDeal.com.

The Oxygen Sensor is an important and essential part that one cannot afford to do without in a Chrysler Pacifica car. This Oxygen Sensor is widely recognized for its consistency and is indispensable for measuring the degree of unburned oxygen in the stream of exhaust gases, which in turn helps to accurately determine the most effective ratios of air and fuel and, consequently, reduce the hazardous emissions. Measuring the voltage signal proportional to the oxygen concentration in the exhaust gases, the Oxygen Sensor assists the engine control computer to correct the fuel injector timing; therefore, the engine works in a closed loop program that improves the effectiveness of a catalytic converter. Fits both the regular Chrysler Pacifica and the Chrysler Pacifica hybrid gasoline and this Oxygen Sensor for your vehicle is specifically built with high efficiency and pollution code compatibility in mind. Ample and specific sophistication in high-tech, zirconium dioxide-based technology in terms of both narrow-band and wide-band readings, promise durable, accurate signal-reading applications across an extensive a/f ratio scale. Some of the Oxygen Sensor parts of deterioration must undergo periodic monitoring and replacement because they affect emission and efficiency. For instance, Chrysler Pacifica has been awarded severally thus affirming the vehicle's position in the market. Being one of Chrysler's Pacifica parts with those outstanding features, incorporating Oxygen Sensor guarantees to improve the overall driving of Chrysler brand vehicles.

Chrysler Pacifica Oxygen Sensor Parts and Q&A

Oxygen Sensor, Rear
56029085AA
Q: How to Install an Oxygen Sensor for Both Upstream and Downstream Positions on Chrysler Pacifica?
A:
Be sure the engine is cool before you access the downstream oxygen sensor to prevent being burned by the Exhaust Manifold, Exhaust Pipes and Catalytic Converter(s). A tool designed for removing O2S is necessary and remember that the threads of new oxygen sensors come with anti-seize coating, so you do not need to add anything extra during the change. Attach the O2 sensor (2) to the catalytic converter (1) and turn it by 30 ft. lbs. to secure it properly (31 Nm). After that, plug the O2 sensor harness into the engine wiring harness (3) and fasten the O2 sensor clips to the engine or the body, if they exist. Whenever removing or changing the upstream oxygen sensor (1/1), be sure to check the engine's temperature and use the O2S tool. Place the O2 sensor (3) onto the catalytic converter (2) and fasten it by hand until it reaches 41 Nm (30 ft. lbs.). After that, link the O2 sensor pigtail harness to the engine wiring harness (1) and install the clips holding the O2S wire harness to the engine or body if present.
Oxygen Sensor, Front Driver Side
56029049AA
Q: How to Safely Disconnect and Remove an Oxygen Sensor on Chrysler Pacifica?
A:
There are two warmed oxygen sensors that the engine makes use of and when anyone is removing the sensor electrical connector; he or she should not directly pull on the wire winding into the detector. The best place to start is by removing the negative battery terminal cable then remove the upper O2 sensor connector. One uses a socket like snap-On YA8875 or use a crow foot wrench to remove an oxygen sensor.