Car Oxygen Sensor Lambda Sensor O2 Snesor Part Number 96394000 For Chevrolet / Daewoo

This Lambda Sensor (Oxygen Sensor) is an Original Equipment (OE) component manufactured for the General Motors (GM) group, including Chevrolet, Daewoo, and Buick vehicles. The OE number 96394000 is the primary reference for this sensor, which is widely used across a broad range of GM-family models from the late 1990s through the 2000s.

The sensor monitors oxygen content in the exhaust gases and relays this information to the Engine Control Unit (ECU) to ensure the optimal air-fuel mixture is maintained for efficient combustion and reduced emissions. It features an unheated, 2-wire design with a 2-pin connector, making it a reliable and cost-effective replacement for the original factory component.

This sensor is a direct-fit component featuring a vehicle-specific electrical connector and pre-terminated wiring, eliminating the need for cutting or splicing during installation. It is typically positioned before the catalytic converter (upstream / pre-catalyst) and serves as the primary regulating probe for fuel trim adjustments.

• This is an unheated (non-heated) zirconia-type oxygen sensor manufactured to General Motors and Daewoo original equipment standards.
• The sensor generates a voltage signal based on the oxygen concentration difference between the exhaust gas and outside air. Under rich (excess fuel) conditions, the sensor outputs approximately 0.6 – 1.0 V; under lean (excess oxygen) conditions, the output falls to near 0 V.
• Unlike heated sensors, this unit relies on exhaust gas temperature alone to reach operating temperature. This means it may take slightly longer to enter closed-loop operation after a cold start, but it is a simpler and more cost-effective design for the applications it serves.
• The sensor features a 2-pin connector and a cable length of approximately 310 mm.
• As a direct-fit component, it eliminates the need for cutting or splicing during installation.
• Also known as: O2 Sensor, Lambda Sensor, Exhaust Gas Sensor, EGO Sensor.

The following OE numbers are directly interchangeable with 96394000. These numbers are frequently grouped together across multiple aftermarket catalogues as direct equivalents.

• 25165116 and 96377500 are the most frequently listed companion OE numbers for this sensor.
• 3240083 is the Chrysler/Dodge/Jeep equivalent for the same sensor family.
• 19211435 is a General Motors OE number that interchanges with 96394000.
• 96864850 is a closely related GM OE number used on the same vehicle applications.
• 25106107, 25106169, 25165119, 25347721, 5613693, 5613694, 5613719, and 8991739 are additional GM family OE numbers that cross-reference to this sensor.
• Always physically compare your old sensor's connector shape (2-pin), pin count, cable length (310 mm), and thread size (M18 × 1.5) before purchasing.

This Lambda Sensor is an original equipment component used across a wide range of General Motors (GM) group vehicles, including Chevrolet and Daewoo models. Based on extensive cross-reference data, the sensor is installed in the upstream (pre-catalyst / before catalytic converter) position.

• This is an upstream (pre-catalyst / before catalytic converter) oxygen sensor. It is installed before the catalytic converter and serves as the primary regulating probe for air-fuel mixture control.
• Primary applications include Chevrolet Aveo (2002–2008), Chevrolet Lacetti (2002–2008), Chevrolet Rezzo/Tacuma (2000–2008), Chevrolet Evanda (2000–2006), Daewoo Lanos (1997–2002), Daewoo Nubira (1997–2003), Daewoo Leganza (1997–2002), Daewoo Kalos (2002–2008), and Daewoo Matiz (2001–2005).
• Not compatible with heated sensor applications — this is a 2-pin unheated sensor. If your vehicle requires a 4-pin heated sensor, a different part number is required.
• Not compatible with diesel engines — diesel applications use different sensors with different calibration parameters.
• How to verify: Locate your vehicle's catalytic converter. The upstream sensor is typically installed in the exhaust manifold or in the pipe immediately before the catalytic converter. If your faulty sensor is located before the converter and has a 2-pin connector, this part is suitable.
• The vehicle fitment information above is a guide only. Always confirm compatibility using your vehicle's VIN or by physically inspecting your old sensor's position, connector shape, and cable length before ordering.