How to replace the Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 on 2005 GMC Sierra 3500?

Start by elevating the vehicle for sensor replacement work. First disconnect the connector position assurance (CPA) retainer before you pull the heated oxygen sensor (HO2S) connector clip off the frame. Those vehicles running a 4.8L or 5.3L engine need to remove the HO2S electrical connector first. You should also replace connector clips on vehicles with a 6.0L engine. Remove the HO2S. During installation use GM P/N 12377953 anti-seize compound on sensor threads to help with future removal tasks. This compound contains liquid graphite and glass beads. Set the new HO2S sensor into position then torque it to 42 N.m (31 lb ft). Begin the electrical HO2S connector process by completing the 6.0L engine then move to the 4.8L or 5.3L engine. After installing the HO2S connector clip on the frame, disconnect the CPA retainer before lowering the vehicle.

OEM 2005 GMC Sierra 3500 Oxygen Sensor

Oxygen O2 Sensor

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4 Oxygen Sensors found

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2005 GMC Sierra 3500 Oxygen Sensor
Part Number: 12572705
$88.71 MSRP: $180.18
You Save: $91.47 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor
- Item Weight: 0.60 Pounds
- Item Dimensions: 9.1 x 6.1 x 3.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12572705
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2005 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
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2005 GMC Sierra 3500 Oxygen Sensor, Driver Side
Part Number: 19209812
$72.70 MSRP: $147.66
You Save: $74.96 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Position: Driver Side
- Replaces: 19210423, 25333817
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.4 x 3.2 x 3.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 19209812
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
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2005 GMC Sierra 3500 Oxygen Sensor, Driver Side
Part Number: 12572707
$69.11 MSRP: $140.39
You Save: $71.28 (51%)
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 3); Sensor, Computer Control Sensors
- Position: Driver Side
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.6 x 3.2 x 3.3 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12572707
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 8.1 L GAS
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2005 GMC Sierra 3500 Oxygen Sensor
Part Number: 19209808
$72.40 MSRP: $147.04
You Save: $74.64 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor
- Replaces: 12575389, 19256731, 25333812, 12583806, 19210711, 12573168
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.4 x 3.4 x 3.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 19209808
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS

2005 GMC Sierra 3500 Oxygen Sensor

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2005 GMC Sierra 3500 Parts Questions & Experts Answers

Q: How to replace the Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 on 2005 GMC Sierra 3500?
A: Start by elevating the vehicle for sensor replacement work. First disconnect the connector position assurance (CPA) retainer before you pull the heated oxygen sensor (HO2S) connector clip off the frame. Those vehicles running a 4.8L or 5.3L engine need to remove the HO2S electrical connector first. You should also replace connector clips on vehicles with a 6.0L engine. Remove the HO2S. During installation use GM P/N 12377953 anti-seize compound on sensor threads to help with future removal tasks. This compound contains liquid graphite and glass beads. Set the new HO2S sensor into position then torque it to 42 N.m (31 lb ft). Begin the electrical HO2S connector process by completing the 6.0L engine then move to the 4.8L or 5.3L engine. After installing the HO2S connector clip on the frame, disconnect the CPA retainer before lowering the vehicle.