NTK 23001 Oxygen Sensor

Direct Fit Oxygen Sensor for OE Replacement

The NTK 23001 direct fit oxygen sensor is built for specific applications that require a threaded, heated, 4-wire replacement with OE-style fit and function. It is a direct fit oxygen sensor for Mitsubishi Diamante, Eclipse, Mirage, and select Dodge and Chrysler applications listed below.

NTK’s Direct Fit Oxygen Sensor line focuses on application-specific coverage and OE-equivalent performance. As part of the NGK family of products, NTK uses ceramic manufacturing expertise and extensive production testing to deliver consistent sensor output and reliable installation fitment.

Key Features

• Part number: 23001
• Heated oxygen sensor for faster operating response
• Specific fit design for direct replacement installation
• 4-wire configuration
• Threaded mounting type with 18 mm thread diameter
• 25-inch wiring harness length
• OE-equivalent design for emission control service

Detailed Description

NTK 23001 is a direct fit oxygen sensor engineered for emission control service on select Mitsubishi, Dodge, and Chrysler vehicles. It is built as a heated, threaded sensor with a specific-fit harness layout, making it a practical replacement when servicing upstream or downstream oxygen sensor locations. This part number 23001 is listed for applications including 1999-2000 Mitsubishi Diamante, 1998-1999 Mitsubishi Eclipse, and 1995-1996 Dodge Avenger.

NTK manufactures oxygen sensors with controlled ceramic components and production testing to help maintain OE-level fit, form, and function. This sensor cross-references Bosch 13417 for the same application.

Vehicle Fitment

• Fits 1999-2000 Mitsubishi Diamante, Upstream Right; Federal Emissions OE Equivalent Design Oxygen Sensor; Direct Fit Oxygen Sensor
• Fits 1999-2000 Mitsubishi Diamante, Upstream Left; Federal Emissions OE Equivalent Design Oxygen Sensor; Direct Fit Oxygen Sensor
• Fits 1999-2000 Mitsubishi Diamante, Downstream Right; Federal Emissions OE Equivalent Design Oxygen Sensor; Direct Fit Oxygen Sensor
• Fits 1999-2000 Mitsubishi Diamante, Downstream Left; Federal Emissions OE Equivalent Design Oxygen Sensor; Direct Fit Oxygen Sensor
• Fits 1998-1999 Mitsubishi Eclipse, Downstream; B1S2, Federal Emissions, OE Equivalent Design; Direct Fit Oxygen Sensor
• Fits 1995-1999 Mitsubishi Eclipse, Downstream; Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
• Fits 1997-1998 Mitsubishi Diamante, Upstream Right; OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
• Fits 1997-1998 Mitsubishi Diamante, Upstream Left; Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor
• Fits 1997-1998 Mitsubishi Diamante, Downstream Right; Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
• Fits 1997-1998 Mitsubishi Diamante, Downstream Left; Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
• Fits 1995-1996 Dodge Avenger, Downstream; B1S2 oxygen sensor meets OEM standards.; Direct Fit Oxygen Sensor
• Fits 1995-1996 Mitsubishi Mirage, Downstream; B1S2, Federal Emissions, OE Equivalent Design; Direct Fit Oxygen Sensor
• Fits 1995 Chrysler Sebring, Downstream; B1S2 oxygen sensor meets OEM standards.; Direct Fit Oxygen Sensor
• Fits 1995 Mitsubishi Eclipse, Downstream; B1S2 oxygen sensor meets OEM standards.; Direct Fit Oxygen Sensor
• Fits 1993-1994 Dodge Colt, Upstream; B1S1; Calif. Emissions; OE Equivalent Design; Direct Fit Oxygen Sensor
• Fits 1994 Mitsubishi Mirage, Downstream; Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
• Fits 1993 Mitsubishi Mirage, Downstream; B1S2 California emissions OE equivalent design.; Direct Fit Oxygen Sensor

Common Repair Uses

• Replacing a failed oxygen sensor that triggers a check engine light
• Restoring air-fuel ratio feedback on Mitsubishi Diamante and Eclipse applications
• Addressing poor fuel control caused by slow or inaccurate sensor response
• Correcting emissions-related faults on upstream or downstream sensor locations
• Servicing a direct replacement oxygen sensor on Dodge Avenger, Chrysler Sebring, or Mitsubishi Mirage applications

Installation Notes and Tips

Confirm the sensor position, emissions calibration, and connector style before installation. This NTK 23001 oxygen sensor uses a threaded mount and a 4-wire heated design, so the replacement should match the vehicle’s original sensor location and harness routing. For best results, inspect the exhaust bung threads and wiring path before tightening the sensor into place.

Quality Assurance

NTK is a major original equipment oxygen sensor supplier and uses manufacturing controls focused on ceramic precision, fit consistency, and OE-spec testing. The Direct Fit Oxygen Sensor line is built to support reliable replacement service on import and domestic applications.