How to service the oxygen sensor properly on GMC C3500?

Requirements for servicing the Oxygen Sensor include using the right tool, dealing with the sensor with care and ensuring the heated Oxygen Sensor (HO2S), the louvered end and all connectors are not contaminated. Do not take the pigtail off the ho2s or Oxygen Sensor (02S), since this will reduce the sensor's effectiveness. In case the pigtail, connector or terminal is broken, you should replace the Oxygen Sensor, since it's best not to fix these types of problems yourself. Contact cleaner should not be applied to the sensor or to the connector harness and the sensor pigtail and harness wires should not be exposed or bent, as this might result in problems with performance. Leave the Oxygen Sensor ground wire in place, because it could be essential for the sensor and double-check the seal on the connector in order to avoid water getting inside the wiring. It may be hard to remove the ho2s if the engine is not warm enough and applying strong force might damage the threads in the exhaust system. At first, remove the negative Battery Cable and then lift the vehicle before taking out the ho2s sensor connector heat shield, if it exists. Remove the ho2s sensor harness next and then take out the heated Oxygen Sensor using the j 39194 wrench carefully. Coat the threads of the Oxygen Sensor with gm p/n 5613695 or an equivalent, put the sensor in place with the wrench and tighten to 41 n.m (30 lb ft). Afterward, install the ho2s sensor harness connector, fit a heat shield if it's required, lower the vehicle to the ground and place the negative Battery Cable back where it came from.

OEM GMC C3500 Oxygen Sensor

Oxygen O2 Sensor

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6 Oxygen Sensors found

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GMC C3500 Oxygen Sensor Part Number: 19178938
$63.56 MSRP: $129.10
You Save: $65.54 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaces: 25165314, 25161152, 25312185
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 GMC C3500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C3500 Oxygen Sensor Part Number: 19178918
$70.38 MSRP: $142.96
You Save: $72.58 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaces: 25163079, 25312200
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 GMC C3500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C3500 Oxygen Sensor Part Number: 19178934
$72.07 MSRP: $146.38
You Save: $74.31 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaces: 25312191, 25160540
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 GMC C3500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C3500 Oxygen Sensor Part Number: 25176708
$55.59 MSRP: $112.89
You Save: $57.30 (51%)
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Product Specifications
- Other Name: Sensor Assembly, Oxygen; Sensor, Computer Control Sensors
- Replaces: 10096129
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1993 GMC C3500 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C3500 Heated Oxygen Sensor Assembly Part Number: 19355306
$62.07 MSRP: $126.08
You Save: $64.01 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Oxygen Sensor; Sensor, Computer Control Sensors
- Replaces: 19178116, 25163080, 25312201
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 GMC C3500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
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GMC C3500 Oxygen Sensor Part Number: 19211437
$19.00 MSRP: $33.92
You Save: $14.92 (44%)
Product Specifications
- Other Name: Sensor, Computer Control Sensors; Sensor, Emission Control Sensor(Vehicle Speed); Sensor, Emission Control Sensor(Oxygen)
- Replaces: 19178952, 25171573, 25166816, 25171574, 25162693, 25106073, 25107378, 25165118, 25171581, 25132068, 25165120, 25162600, 19178953, 19178943, 25133185, 25133076, 19178919, 25162753
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1993 GMC C3500 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS

GMC C3500 Oxygen Sensor

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The Oxygen Sensor is usually a trusted and good performing part mostly required to help run the overall efficiency and safety of the car. Meant for sensing the exhaust gases at the point where the oxygen is not burnt, the Oxygen Sensor modifies the ratio of air and fuel for achieving the highest efficiency for the catalytic converter and for reducing the emission of unhealthy gases. This sensor is made of ZrO2 and has platinum electrodes, is housed in a steel package with a heating coil for added utility. The GMC C3500 models usually come with the minimum of two Oxygen Sensors, one before the catalytic converter and the other after it, which help monitor and regulate the engine's operation. It need be stressed the role played by the Oxygen Sensor because degradation affects emissions and fuel economy, to the detriment of the environment and the motorist's pocket. In addition, some of the more recent model GMC C3500 vehicles have incorporated new air fuel ratio sensors that cover a greater range of the parameters for better functionality. Being suitable to fit a broad variety of GMC C3500 models with different wheel bases and configurations, the Oxygen Sensor is on trucks' demand. Some of them like durability of the product, high level of measurement accuracy signify the unique selling proposition of the car in the automobile industry, which clearly marks GMC's vision of delivering only the premier automobiles to its customers. Last but not the least, the oxygen sensor in GMC C3500 is crucial when it comes to the optimization of the vehicle, safety, and the quality that buyers anticipate from GMC automobiles.

GMC C3500 Oxygen Sensor Parts Questions & Experts Answers

Oxygen Sensor
19178934
Q: How to service the oxygen sensor properly on GMC C3500?
A:
Requirements for servicing the Oxygen Sensor include using the right tool, dealing with the sensor with care and ensuring the heated Oxygen Sensor (HO2S), the louvered end and all connectors are not contaminated. Do not take the pigtail off the ho2s or Oxygen Sensor (02S), since this will reduce the sensor's effectiveness. In case the pigtail, connector or terminal is broken, you should replace the Oxygen Sensor, since it's best not to fix these types of problems yourself. Contact cleaner should not be applied to the sensor or to the connector harness and the sensor pigtail and harness wires should not be exposed or bent, as this might result in problems with performance. Leave the Oxygen Sensor ground wire in place, because it could be essential for the sensor and double-check the seal on the connector in order to avoid water getting inside the wiring. It may be hard to remove the ho2s if the engine is not warm enough and applying strong force might damage the threads in the exhaust system. At first, remove the negative Battery Cable and then lift the vehicle before taking out the ho2s sensor connector heat shield, if it exists. Remove the ho2s sensor harness next and then take out the heated Oxygen Sensor using the j 39194 wrench carefully. Coat the threads of the Oxygen Sensor with gm p/n 5613695 or an equivalent, put the sensor in place with the wrench and tighten to 41 n.m (30 lb ft). Afterward, install the ho2s sensor harness connector, fit a heat shield if it's required, lower the vehicle to the ground and place the negative Battery Cable back where it came from.