How to Replace a Heated Oxygen Sensor (HO2S) on 2003 GMC Envoy?

The initial step for replacing the Heated Oxygen Sensor (HO2S) requires hoisting up the vehicle. You need the Heated Oxygen Sensor Wrench (J 39194-B) to disconnect the HO2S electrical connector followed by HO2S removal. Placing anti-seize compound P/N 5613695 on new heated oxygen sensor threads should be done before installation. Alternatively use an equivalent anti-seize material if needed. When replacing the heated oxygen sensor use Heated Oxygen Sensor Wrench (J 39194-B) to install it until it reaches 41 N.m (30 lb ft). Once the vehicle stands at the correct height attach the HO2S electrical connector before lowering it to the ground.

OEM 2003 GMC Envoy Oxygen Sensor

Oxygen O2 Sensor

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2 Oxygen Sensors found

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2003 GMC Envoy Oxygen Sensor
Part Number: 12578624
$92.04 MSRP: $186.94
You Save: $94.90 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Rear Oxygen Sensor; Front Oxygen Sensor
- Replaces: 24577303
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.5 x 3.4 x 3.3 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12578624
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2003 GMC Envoy Submodels:
- SLE, SLT | 6 Cyl 4.2 L GAS
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2003 GMC Envoy Oxygen Sensor
Part Number: 12577588
$66.10 MSRP: $124.16
You Save: $58.06 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor
- Replaces: 24577273
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.5 x 3.1 x 3.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12577588
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 GMC Envoy Submodels:
- SLE, SLT | 6 Cyl 4.2 L GAS

2003 GMC Envoy Oxygen Sensor

With a comprehensive array of OEM 2003 GMC Envoy Oxygen Sensor, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2003 GMC Envoy Oxygen Sensor are backed by the manufacturer's warranty and are offered at competitive prices in the market. Rest assured, you can shop with complete confidence.

2003 GMC Envoy Parts Questions & Experts Answers

Q: How to Replace a Heated Oxygen Sensor (HO2S) on 2003 GMC Envoy?
A: The initial step for replacing the Heated Oxygen Sensor (HO2S) requires hoisting up the vehicle. You need the Heated Oxygen Sensor Wrench (J 39194-B) to disconnect the HO2S electrical connector followed by HO2S removal. Placing anti-seize compound P/N 5613695 on new heated oxygen sensor threads should be done before installation. Alternatively use an equivalent anti-seize material if needed. When replacing the heated oxygen sensor use Heated Oxygen Sensor Wrench (J 39194-B) to install it until it reaches 41 N.m (30 lb ft). Once the vehicle stands at the correct height attach the HO2S electrical connector before lowering it to the ground.

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Alternate Year Models

2002 GMC Envoy Oxygen Sensor 2004 GMC Envoy Oxygen Sensor