Car Oxygen Sensor Lambda Sensor O2 Snesor Part Number 39210-2B310 For Hyundai / Kia

This Lambda Sensor (Oxygen Sensor) is an Original Equipment (OE) component manufactured for Hyundai and Kia vehicles. The OE number 39210-2B310 is the primary reference for this sensor, which is widely used as an upstream (pre-catalyst / front) oxygen sensor across multiple Hyundai and Kia models equipped with the 1.4L, 1.6L, and 1.8L petrol engine families.

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 a heated, switching-type design with a 4-pin rectangular connector, allowing it to reach operating temperature quickly for precise air-fuel ratio measurement.

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 positioned before the catalytic converter (upstream / pre-catalyst) and serves as the primary regulating probe for fuel trim adjustments.

• This is a 4-wire heated switching-type oxygen sensor manufactured to Hyundai and Kia's original equipment standards. The four wires serve two independent circuits — two for the internal heater and two for the sensor signal and ground.
• The built-in heating element quickly brings the ceramic sensing tip up to operating temperature after a cold start, enabling the ECU to enter closed-loop fuel control sooner and reduce cold-start emissions.
• As an upstream (pre-catalyst) regulating sensor, it is installed before the catalytic converter and serves as the primary regulating probe that directly influences the ECU's fuel trim adjustments.
• The sensor is constructed with a stainless-steel shell that reduces rusting and provides greater dependability. The centre ceramic element is composed of Zirconium Oxide, Alumina, and Yttrium Oxide. The platinum coating is applied using vapour deposition, whilst a Spinel coating on the outer platinum layer prevents solid particles in the exhaust gas from damaging the component.
• The sensor features a rectangular 4-pin connector with a grey housing and a cable length of approximately 375 mm (Intermotor / Kerr Nelson) or 400 mm (Febi / Blue Print), depending on the manufacturer.
• All sensors are 100% tested to meet or exceed original equipment quality standards.
• Also known as: O2 Sensor, Lambda Sensor, HEGO Sensor, UEGO Sensor, Planar Sensor, Exhaust Gas Sensor.

The following OE numbers are directly interchangeable with 39210-2B310. These numbers are frequently grouped together across multiple aftermarket catalogues as direct equivalents.

• The Intermotor 64875 aftermarket sensor lists HYUNDAI 3921003030, 392102B310, 392102B320 and KIA 3921003030, 392102B310, 392102B320 as OEM references, with 375 mm cable length, rectangular connector, 4-pole design, grey housing, and a Lifetime Warranty.
• The Kerr Nelson KNL986 aftermarket sensor lists the same OEM references, with 375 mm cable length, rectangular connector, 4-pole design, and a 2-Year Warranty.
• The Blue Print ADG070103 aftermarket sensor lists HYUNDAI 39210-2B310 and KIA 39210-2B310 as OEM references, with 400 mm cable length, heated design, 4 connections, M18 × 1.5 outside thread, and 22 mm wrench size.
• The Febi 107593 aftermarket sensor lists HYUNDAI 392102B310 and KIA 392102B310 as OEM references, with 400 mm cable length, M18 × 1.5 thread, and 4 connectors.
• The VEMO V52-76-0019 aftermarket sensor lists 39210-2B310 as the OE reference, with 505 mm cable length, pre-greased thread, and braided fibre insulation with silicone coating.
• The FACET 10.8260 aftermarket sensor lists 39210-2B310 as the OE reference, with 570 mm cable length, 4 conductors, heated, pre-greased thread, and planar sensor design.
• The SWAG 33 10 6764 aftermarket sensor lists HYUNDAI 39210-2B310, KIA 39210-2B310, FIAT, HYUNDAI (BEIJING), and KIA (DYK) as OEM references.
• The MEYLE 28-14 803 0000 aftermarket sensor lists 3921002610, 392102B310, 392102E411, 392102E771, 3921002630 as compatible OE numbers.
• 39210-2B320 is the rear (downstream / post-catalyst) sensor for the same vehicle applications.
• Always physically compare your old sensor's connector shape (rectangular), pin count (4), cable length (375 – 400 mm), and thread size (M18 × 1.5) before purchasing.

This Lambda Sensor is an original equipment component used across a wide range of Hyundai and Kia vehicles. 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 Hyundai Accent (2011-2017), Hyundai Solaris (2011-2017), Hyundai Elantra MD/AD (2011-2020), Hyundai i20/i30/ix20, Hyundai Veloster, Hyundai Creta, Hyundai HB20; Kia Rio (2011-2017), Kia Rio III Sedan (2014-2016), Kia Soul AM/PS, Kia Cee'd ED/JD, Kia Pro Cee'd, Kia Cerato/Forte, Kia Venga, Kia K2/K3 (China market), and Kia Picanto.
• 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, this part is suitable. If located after the converter, use part number 39210-2B320 or 39210-2B365 instead.
• Not compatible with diesel engines — diesel applications use different sensors with different calibration parameters.
• 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.