NGK O2 SENSORS 25733 oxygen sensor for the 2011-2013 Hyundai Elantra 4-cylinder 1.8L and other vehicles sends exhaust oxygen readings to the ECU, which uses them to help control the air-fuel ratio.
- Development includes vibration and thermal shock testing, with further testing during manufacturing
- Ceramic sensor element with a 3-stage contaminant-resistant plasma jet and deposit trap overcoat that protects against element poisoning
- Dual-coated platinum interface and a thinner ceramic element for fast light-off and response times
- Heated, narrow-band switching zirconia sensing design
Quick facts
- Part: NGK O2 SENSORS 25733 oxygen sensor
- Fits: 2011-2013 Hyundai Elantra 4-cylinder 1.8L and other vehicles
- Position: Downstream
- Condition: New
A worn oxygen sensor can show up as a check engine light, poorer fuel economy or rough running. Before you replace this sensor, rule out wiring damage, an exhaust leak and fuel delivery faults, since those can set off similar warnings.
Fits
The 2011-2013 Hyundai Elantra 4-cylinder 1.8L, the 2016-2018 Hyundai Tucson 4-cylinder 2.0L and the 2014-2018 Kia Forte 4-cylinder 2.0L take this sensor, and so do other vehicles. If your car is not named here, look up its year, model and engine in the "Vehicles it fits" section. These cars take a single downstream sensor, and this listing is one sensor.
Specifications
Fit and size
- Position: Downstream
- Quantity per vehicle: 1
- Thread size: M18 - 1.5 (metric)
- Wrench size: 7/8 in (22 mm)
- Wiring harness length: 29.50 in
- Wires: 4
- Terminals: 4, pin type
Build and materials
- Sensor type: Narrow-band, switching zirconia
- Heated: Yes
- Mounting: Threaded
- Connector: Rectangular, male, with female terminals
- Grade: Standard replacement
- Condition: New
- Country of origin: Japan
Installation notes
- The sensor is equipped with OE-specified, water-resistant connectors and harness accessory hardware for easy installation.
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
18103, 18143, 234-4550, 234-4569, 234-4958, 392102E500, 392102E502, 392102E510, 392102E511, 392102E550, 392102E950, 392102ETL4
Frequently Asked Questions
Is this the right Hyundai Tucson oxygen sensor for a 2016-2018 model with the 4-cylinder 2.0L?
Yes. NGK O2 SENSORS 25733 fits the 2016-2018 Hyundai Tucson 4-cylinder 2.0L as a downstream sensor, and the vehicle takes one.
Is this a Kia Forte oxygen sensor for a 2014-2018 model with the 4-cylinder 2.0L?
Yes. This downstream sensor fits the 2014-2018 Kia Forte 4-cylinder 2.0L. For a car not named on this page, use the "Vehicles it fits" section.
What thread and wrench size does NGK O2 SENSORS 25733 have?
NGK O2 SENSORS 25733 has an M18 - 1.5 metric thread and a 7/8 in (22 mm) wrench size. Its wiring harness is 29.50 in long.
Is this downstream oxygen sensor heated?
Yes. It is a heated, narrow-band switching zirconia sensor with four wires and a rectangular connector.
What testing do these NTK oxygen sensors go through?
Development includes vibration and thermal shock testing, and the sensors are tested again during manufacturing to confirm quality and reliability.
