NTK 23190 Oxygen Sensor

Direct-fit oxygen sensor

NTK 23190 is a specific-fit, heated narrow-band oxygen sensor built as a standard replacement for emission control service. It provides closed-loop feedback to the ECU to help maintain air-fuel control, support fuel efficiency, and monitor emissions system performance.

Compatible with Jeep, Ram, Chrysler, and Dodge applications, this NTK oxygen sensor is engineered for threaded screw-in mounting with a rectangular female connector and 4-wire configuration. The 23190 part number is listed as an OE direct-fit solution for multiple upstream and downstream positions.

Key features

• Heated narrow-band oxygen sensor for standard replacement service
• Specific-fit design for direct application matching
• Threaded screw-in mounting with M18 x 1.5 thread size
• Rectangular female connector with 4 terminals and 4 wires
• 7/8 in. (22 mm) wrench size for service installation
• NTK 23190 supports OBDII monitoring of fuel delivery and catalyst efficiency

Application details

NTK is a major OEM oxygen sensor supplier, and the 23190 reflects that OE application focus with a direct-fit design and sensor construction intended for accurate feedback control. This oxygen sensor is used in Jeep Wrangler, Jeep Gladiator, Jeep Cherokee, Ram 1500, and related Chrysler and Dodge applications where precise exhaust feedback is required. The 23190 part number appears across multiple 2018-2024 vehicle applications, including upstream left, upstream right, downstream, and downstream right positions.

What it helps address

• Fault codes related to oxygen sensor performance
• Incorrect air-fuel ratio feedback to the ECU
• Reduced fuel economy caused by inaccurate exhaust readings
• Emissions monitoring issues flagged by OBDII systems
• Catalytic converter efficiency monitoring concerns

Installation notes

Verify the connector shape, terminal count, thread size, and position before installation. This sensor uses a threaded screw-in mount and a 4-wire harness, so matching the original connector and harness routing is important for proper fitment. Confirm the vehicle application and position listed for the 23190 before ordering.

Quality assurance

NTK is the world's largest supplier and manufacturer of OEM oxygen sensors, with ceramic-element control from raw material through finished product. The brand's OE application technology and full-line market support back the 23190 direct-fit oxygen sensor.