What are the symptoms of a bad O2 sensor?

A failing or failed O2 sensor may not detect the engine’s air-fuel ratio running too rich or too lean. Common signs include an illuminated check engine light, poor fuel economy, rough idling or failed emissions testing.

Can a bad O2 sensor cause the check engine light to come on?

Yes. When incorrect oxygen levels are detected in the exhaust, the sensor will trigger the sensor to send a fault code and turn on the check engine light.

Will replacing an O2 sensor improve gas mileage?

A properly functioning O2 sensor can help the vehicle maintain the optimal air-fuel ratio for combustion, helping balance fuel economy, engine performance and emissions.

How long do O2 sensors last?

O2 sensors can last between 60,000 and 100,000 miles. However, O2 sensor longevity depends on numerous factors including heat, carbon buildup and normal wear.

Why choose GM Genuine Parts O2 sensors instead of aftermarket brands?

GM Genuine Parts O2 sensors are engineered to original equipment specifications for precise fit, form and function. They are designed to integrate seamlessly with your vehicle’s engine.

Gm Genuine Parts 12627139 Heater Oxygen Sensor

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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الحساب عربة التسوق

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

المساعدة تتبع الطلب

الحساب عربة التسوق

E£ 7900

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Stay ahead of the pack with precision that powers your drive!

RAPID RESPONSE TIME - Detects oxygen levels in just 5 minutes, keeping your engine finely tuned and ready to perform.
BACKED BY G MS TRUSTED LEGACY - Genuine GM part with rigorous testing and quality assurance, giving you peace of mind and long-term reliability.
SEAMLESS OEM FIT COMPATIBILITY - Designed and validated by GM engineers specifically for Chevrolet, Buick, GMC, and Cadillac models—no guesswork, just perfect fit.
BUILT TO WITHSTAND EXTREME CONDITIONS - Operates flawlessly up to 850°C, engineered for durability in the harshest exhaust environments.
PRECISION ENGINEERED FOR PEAK PERFORMANCE - OE-grade sensor ensures your GM vehicle runs at optimal air/fuel ratio for max efficiency and minimal emissions.

The GM Genuine Parts 12627139 Heater Oxygen Sensor is a high-precision OE sensor designed to optimize your GM vehicle’s engine performance by accurately measuring exhaust oxygen levels. With a rapid 5-minute response time and heat resistance up to 850°C, it ensures efficient fuel combustion, reduced emissions, and reliable operation under extreme conditions. Engineered and validated by GM, this sensor guarantees perfect fit and durability for Chevrolet, Buick, GMC, and Cadillac vehicles.

Specifications

ASIN	B008MOQID4
Best Sellers Rank	#328,941 in Automotive ( See Top 100 in Automotive ) #1,402 in Automotive Replacement Oxygen Sensors
Brand	GM GENUINE PARTS
Brand Name	GM GENUINE PARTS
Customer Reviews	4.2 out of 5 stars 123 Reviews
Included Components	Sensor Asm
Item Dimensions	8.2 x 3.2 x 3.2 inches
Item Type Name	Sensor Asm
Item Weight	3.52 ounces
Item dimensions L x W x H	8.2 x 3.2 x 3.2 inches
Manufacturer	ACDelco
Material	Ceramic, Stainless Steel
Material Type	Ceramic, Stainless Steel
Measurement Accuracy	±1%
Measuring Range	0-100% O2
Model	12627139
Mounting Type	Flange Mount
Output Type	Push-Pull
Part Number	12643707
Response Time	5 minutes
Smart Home Compatibility	Not Smart Home Compatible
Specific Uses For Product	Oxygen Sensor
Style	Modern
Style Name	Modern
UPC	808709376804
Unit Count	1.0 Count
Upper Temperature Rating	850 Degrees Celsius
Warranty Description	24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details.

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E£ 7900

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to EGYPT.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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GM Genuine Parts 12627139 Heater Oxygen Sensor

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Details

Description

Specifications

Common Questions