The 393502A640 oxygen sensor is a high-precision electrochemical sensing module designed for real-time exhaust gas monitoring in modern vehicles. Installed in the exhaust system, it detects the oxygen concentration in exhaust gases and sends accurate feedback signals to the engine control unit (ECU). This allows the ECU to precisely adjust the air-fuel ratio, optimize combustion efficiency, reduce harmful emissions, and improve fuel economy and engine performance. As a professionally manufactured OE replacement part, it is widely compatible with a variety of Hyundai and Kia models.
Technical Specifications
|
Item |
Specification |
|
Product Model |
393502A640 |
|
Item Weight |
0.15 kg |
|
Cable Length |
400 mm |
|
Number of circuits |
5 |
|
Number of pins |
6 |
|
Switch Pressure |
4 bar |
|
Thread Size |
M18x1,5 |
|
Fitting Position |
Before catalytic converter |
|
Oxygen Sensor |
Planar probe |
|
Broadband lambda sensor |
|
|
Thread pre-greased |
|
|
Heated |
|
|
Operating Voltage |
12V DC |
|
Operating Temperature |
-40℃ ~ +900℃ |
|
Communication Protocol |
LIN / CAN (vehicle-dependent) |
|
Mounting Type |
Threaded mounting |
|
Application |
Engine emission control, fuel injection control system |
|
Sensing Element |
Zirconia ceramic |
Compatible Vehicle Models
|
FORD |
MUSTANG |
2015-2020 |
|
LAND ROVER |
RANGE ROVER EVOQUE |
2012-2017 |
|
PORSCHE |
CAYENNE |
2008-2010 |
✅ Note: This oxygen sensor is designed as a direct replacement for vehicles with the original equipment part number 393502A640, 393502A640,393502A640,0258988013,393502A640,393502A640,0258988013,338108394
Structural Composition
| Optical Module | Contains dual infrared emitters and receivers sealed within a transparent lens window, calibrated for accurate rain detection across varying light conditions. |
| Control PCB | Embedded microcontroller processes sensor signals and outputs wiper commands via standardized vehicle interface. |
| Mounting Bracket | Integrated plastic housing with OEM-matching geometry and retention clips for secure attachment to the windshield's black frit area. |
| Electrical Connector | 6-pin or 8-pin gray automotive connector (depending on variant) with tin-plated terminals for corrosion resistance and reliable signal integrity. |
| Thermal Management Layer | Internal thermal pad dissipates heat from electronics, preventing overheating during prolonged operation. |
Installation and Usage Notes
- Always disconnect the vehicle battery before installation to avoid electrical damage.
- Clean the threaded mounting hole on the exhaust pipe to ensure a tight seal and proper installation.
- Do not use lubricants or contaminants on the sensing element and connector, as this will affect sensor performance.
- After installation, use a diagnostic tool to clear engine fault codes and perform idle adjustment if necessary.
- Replace the oxygen sensor if you experience increased fuel consumption, rough idle, failed emission test, or illuminated check engine light.
Key Features
OEM Direct Fit
Manufactured to meet original equipment specifications under OE number 393502A640. It matches the original connector, mounting thread, and cable length, ensuring direct plug-and-play installation with no modifications or adapters needed.
01
High-Precision Sensing Element
Equipped with a high-performance zirconia ceramic sensing element that provides fast response and stable signal output, enabling the engine to maintain an ideal air-fuel mixture under all driving conditions.
02
Excellent Durability & Heat Resistance
Built with high-temperature resistant materials and protective coating, ensuring stable operation in extreme exhaust temperatures and harsh environments, with long service life and no signal drift.
03
Stable Electrical Performance
Features anti-interference circuit design and high-quality wiring harness, guaranteeing reliable signal transmission with the ECU even under vibration and high-temperature conditions.
04
Strict Quality Inspection
Produced in accordance with IATF 16949 automotive quality management standards. Each sensor undergoes full functional testing, including signal calibration, vibration resistance, and high-temperature durability tests.
05
Oxygen Sensor - Key Performance Parameters
- Response Time
Response time reflects how quickly the oxygen sensor output responds to changes in exhaust gas composition in the exhaust pipe. It usually refers to the switching time from rich to lean or lean to rich.Under normal conditions, the response time should be less than 100 ms.When the oxygen sensor is contaminated by engine oil or has become aged, its response time will slow down.
- Light-off Time
Light-off time is the period from engine start until the sensor reaches its activation temperature.The oxygen sensor can only operate normally and output accurate signals after reaching its activation temperature.The engine electronic control system (ECU) can only enter closed-loop fuel control after receiving a valid signal from the oxygen sensor, thereby reducing pollutant emissions.
- Output Voltage
A properly functioning oxygen sensor will switch its output voltage between 100 mV and 800 mV.For low-quality or aged oxygen sensors, the output voltage range becomes narrower, for example, switching only between 350 mV and 550 mV.
- Working Life
Working life refers to the effective operating mileage or time during which the sensor maintains its key performance parameters (such as response time and output voltage) within acceptable limits.Service life directly affects vehicle maintenance costs and the long-term effectiveness of emission control.The typical service life is normally 80,000 to 160,000 kilometers.Actual lifespan is significantly affected by fuel quality (impurities including lead, sulfur, and silicon will accelerate aging), engine operating conditions, and the operating environment.
- Heater Resistance
Heated oxygen sensors are equipped with a built-in heating element to ensure they quickly reach operating temperature.Heating power is strictly related to heater resistance, which is a key factor affecting the light-off time of the oxygen sensor.
Company Profile
Main Business
FAQ
Q: Who are we?
A: We are based in Shanghai, China, start from 2004,sell to Domestic Market(55.00%),North America(10.00%),Central
America(10.00%),South America(7.00%),Eastern Europe(4.00%),Mid East(4.00%),Western Europe(4.00%),Southeast Asia(2.00%),Eastern
Asia(1.00%),Southern Europe(1.00%),Northern Europe(1.00%),Africa(1.00%). There are total about 1000+ people in our office.
Q: How can we guarantee quality?
A: Always a pre-production sample before mass production;
Always final Inspection before shipment;
Q: What can you buy from us?
A: Auto Electrical Systems,Auto Engine Systems,Auto Steering Systems,Auto Suspension Systems,Auto Transmission Systems
Q: Why should you buy from us not from other suppliers?
A: Changhui group has over 4 0 years' experience in manufacturing auto electrics & electronics, has QC and OEM service capability. 40 years' industry professional accumulation made it to be automotive expert in auto electrics, electronics & EPS.
Q: What services can we provide?
A: Accepted Delivery Terms: FOB,CIF,DDP,DDU,Express Delivery;
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,Western Union,Cash;
Language Spoken:English,Chinese,Spanish,German,French,Russian,Korean
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