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GM Oxygen Sensors

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Why Oxygen Sensors are Vital for Pontiac Performance

Oxygen sensors are essential to your Pontiac's engine management system. They monitor the quantity of oxygen in your exhaust gases, allowing the engine control unit (ECU) to alter the air-fuel ratio for the best combustion. This modification is critical for preserving optimal engine performance, lowering harmful emissions, and increasing fuel efficiency. Faulty oxygen sensors can cause poor engine performance, increased fuel consumption, and greater emissions; thus, it is critical to keep them in good condition.

Understanding the Function of Oxygen Sensors

Oxygen sensors are commonly situated in the exhaust manifold, measuring oxygen levels in exhaust gases. These sensors transmit data to the ECU, which modifies the fuel injection system accordingly. There are two types of oxygen sensors: pre-catalytic and post-catalytic. Upstream sensors govern the air-fuel mixture, while downstream sensors check the catalytic converter's performance.

Choosing the Proper Oxygen Sensors for Your Pontiac

When choosing oxygen sensors for your Pontiac, ensure they are high-quality and suitable. OEM sensors are frequently the best option because they are custom-made for your vehicle. Aftermarket sensors are possible, but careful selection is required to assure compatibility and performance. Consider sensor kind, cable length, and connection design while making your decision.

Maintaining and Replacing Oxygen Sensors

Regular maintenance and replacement of oxygen sensors are critical for peak performance. Check your Pontiac's oxygen sensors every 60,000 to 90,000 miles. A decline in fuel economy, rough idling, and an illuminated check engine light indicate that your oxygen sensors may require repair. Replacing malfunctioning sensors can improve your Pontiac's performance and avoid more engine damage.

Ask us here to find the right parts and accessories for your needs.

Heated Oxygen Sensor

Part Number: 19316344
GM GM
Other Names: Oxygen Sensor
Description: City Express. Downstream. This part requires programming and/or special setup procedures GM Service Information describes the procedures...
Fits:
  • Chevrolet:
    • City Express
MSRP $333.24
$186.61

Heated Oxygen Sensor

Part Number: 19355308
GM GM
Other Names: Oxygen Sensor, afs98
Replaces: 19178928, 25161131, 25312197
Description: Left. To converter. 5.7L, 1998-02. 4.6L, catalytic converter. All models. 4.6l. Pre & post converter. At converter. Seville. Detects...
Fits:
  • Cadillac:
    • DeVille,
    • Eldorado,
    • Seville
  • Chevrolet:
    • Camaro
  • Pontiac:
    • Firebird
MSRP $144.84
$85.46

Heated Oxygen Sensor

Part Number: 55569902
GM GM
Other Names: Oxygen Sensor
Description: Cascada. Bank 1 sen 1. This part requires programming and/or special setup procedures GM Service Information describes the procedures...
Fits:
  • Buick:
    • Cascada
MSRP $96.54
$56.96

Heated Oxygen Sensor

Part Number: 12572705
GM GM
Other Names: Oxygen Sensor, 856
Description: All models. 6.0l. Front, 8.1L. All models. 8.1l. Right. All models. 4.8l. All models. 4.3l. Rear, 8.1l. Silverado, sierra. 5.3l. 6.0L,...
Fits:
  • Cadillac:
    • Escalade,
    • Escalade ESV,
    • Escalade EXT
  • Chevrolet:
    • Avalanche 2500,
    • LCF 3500,
    • Silverado 1500,
    • Silverado 1500 Classic,
    • Silverado 1500 HD,
    • Silverado 1500 HD Classic,
    • Silverado 2500,
    • Silverado 2500 HD,
    • Silverado 2500 HD Classic,
    • Silverado 3500,
    • Silverado 3500 Classic,
    • Silverado 3500 HD,
    • Suburban 1500,
    • Suburban 2500,
    • Tahoe
  • GMC:
    • Sierra 1500,
    • Sierra 1500 Classic,
    • Sierra 1500 HD,
    • Sierra 1500 HD Classic,
    • Sierra 2500,
    • Sierra 2500 HD,
    • Sierra 2500 HD Classic,
    • Sierra 3500,
    • Sierra 3500 Classic,
    • Sierra 3500 HD,
    • Yukon,
    • Yukon XL 1500,
    • Yukon XL 2500
  • Hummer:
    • H2
MSRP $183.78
$102.92

Heated Oxygen Sensor

Part Number: 12572707
GM GM
Other Names: Oxygen Sensor, 857
Description: All models. 8.1l. Left. Rear of converter, 8.1l. This part requires programming and/or special setup procedures GM Service Information...
Fits:
  • Chevrolet:
    • Avalanche 2500,
    • Silverado 2500 HD,
    • Silverado 2500 HD Classic,
    • Silverado 3500,
    • Silverado 3500 Classic,
    • Suburban 2500
  • GMC:
    • Sierra 2500 HD,
    • Sierra 2500 HD Classic,
    • Sierra 3500,
    • Sierra 3500 Classic,
    • Yukon XL 2500
MSRP $143.19
$84.48

Heated Oxygen Sensor

Part Number: 12573721
GM GM
Other Names: Oxygen Sensor, 862
Description: Canyon, Colorado. Without 5.3l. Front. All models. 4.2l. Detects oxygen content in the exhaust gases to help optimize emissions This GM...
Fits:
  • Buick:
    • Rainier
  • Chevrolet:
    • Colorado,
    • Trailblazer,
    • Trailblazer EXT
  • GMC:
    • Canyon,
    • Envoy,
    • Envoy XL,
    • Envoy XUV
  • Oldsmobile:
    • Bravada
MSRP $129.48
$76.39

Heated Oxygen Sensor

Part Number: 12587785
GM GM
Other Names: Oxygen Sensor, 951
Description: All models. 5.3l. Rear, 5.3l. 5.3L, front of converter. Detects oxygen content in the exhaust gases to help optimize emissions This GM...
Fits:
  • Cadillac:
    • Escalade,
    • Escalade ESV
  • Chevrolet:
    • Avalanche 1500,
    • Silverado 1500,
    • Suburban 1500,
    • Suburban 2500,
    • Tahoe
  • GMC:
    • Sierra 1500,
    • Yukon,
    • Yukon XL 1500,
    • Yukon XL 2500
MSRP $102.74
$60.62

Heated Oxygen Sensor

Part Number: 12597449
GM GM
Other Names: Oxygen Sensor, 1018
Description: 3.6. SRX. CTS. Right. STS, STS-v. 3.6l. 3.6L, manual trans. Rear. This part requires programming and/or special setup procedures GM...
Fits:
  • Cadillac:
    • CTS,
    • SRX,
    • STS
MSRP $173.44
$102.33

Heated Oxygen Sensor

Part Number: 12597878
GM GM
Other Names: Oxygen Sensor, 1024
Description: This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools needed...
Fits:
  • Buick:
    • LaCrosse,
    • Lucerne,
    • Rendezvous,
    • Terraza
  • Chevrolet:
    • Uplander
  • Pontiac:
    • Grand Prix,
    • Montana
  • Saturn:
    • Relay
MSRP $99.54
$58.72

Heated Oxygen Sensor

Part Number: 12597947
GM GM
Other Names: Oxygen Sensor, 1028
Description: 3.6L. Acadia, Acadia Limited. Outlook. Vue. 3.5l. Enclave, Traverse. Vue Hybrid. G6. Rear. 2.4l. Left. 2.4L, 1st design. This part...
Fits:
  • Buick:
    • Enclave
  • Chevrolet:
    • Malibu
  • GMC:
    • Acadia
  • Pontiac:
    • G6
  • Saturn:
    • Aura,
    • Outlook,
    • Vue
MSRP $171.60
$101.24

Heated Oxygen Sensor

Part Number: 12599204
GM GM
Other Names: Oxygen Sensor, 1042
Description: Express, savana. Gas. Front. Calif. This part requires programming and/or special setup procedures GM Service Information describes the...
Fits:
  • Chevrolet:
    • Express 1500,
    • Express 2500,
    • Express 3500
  • GMC:
    • Savana 1500,
    • Savana 2500,
    • Savana 3500
MSRP $209.78
$117.48

Heated Oxygen Sensor

Part Number: 12599866
GM GM
Other Names: Oxygen Sensor, 1044
Description: All models. 5.3l. Express, savana. Gas. Without diesel, front. Rear of converter, 5.3l. This part requires programming and/or special...
Fits:
  • Cadillac:
    • Escalade
  • Chevrolet:
    • Avalanche 1500,
    • Avalanche 2500,
    • Express 1500,
    • Express 2500,
    • Express 3500,
    • Express 4500,
    • Silverado 1500,
    • Silverado 1500 Classic,
    • Suburban 1500,
    • Tahoe
  • GMC:
    • Savana 1500,
    • Savana 2500,
    • Savana 3500,
    • Sierra 1500,
    • Sierra 1500 Classic,
    • Yukon,
    • Yukon XL 1500
MSRP $127.15
$75.02

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