NTK 24225 Oxygen Sensor - Upstream

Direct Fit Oxygen Sensor for Mitsubishi and Plymouth

The NTK 24225 direct fit oxygen sensor is a heated, threaded replacement built for specific applications on select Mitsubishi and Plymouth vehicles. It is engineered with a 4-wire design and a 28.7500-inch wiring harness length for a direct-fit installation on upstream Bank 1 Sensor 1 locations.

NTK’s Direct Fit Oxygen Sensor line focuses on OE-style fit, form, and function, with manufacturing controls that start at the ceramic material stage and continue through final testing. For drivers servicing a 1991-1994 Mitsubishi Eclipse, 1991-1994 Plymouth Laser, or 1991-1992 Mitsubishi Galant, part number 24225 provides a vehicle-specific oxygen sensor replacement.

Key Features

• Part number 24225 direct fit oxygen sensor
• Heated sensor design for faster operating response
• Specific fit application for select Mitsubishi and Plymouth models
• 4-wire configuration with threaded mounting type
• 18.000 thread diameter and 28.7500 wiring harness length
• Upstream Bank 1 Sensor 1 placement

Detailed Product Overview

NTK 24225 is part of the Direct Fit Oxygen Sensor line, created to streamline replacement selection while maintaining OE application coverage. This oxygen sensor is built for import and domestic service needs, with manufacturing and testing processes aimed at consistent signal performance and reliable fitment. It is a direct replacement for upstream oxygen sensor service on 1991-1994 Mitsubishi Eclipse, 1991-1994 Plymouth Laser, and 1991-1992 Mitsubishi Galant applications.

This part cross-references DENSO Auto Parts (e.g., 234-4007) for the same application.

Common Symptoms This Sensor May Address

• Check engine light related to oxygen sensor circuit faults
• Rough idle or inconsistent air-fuel feedback
• Reduced fuel economy from inaccurate exhaust oxygen readings
• Failed emissions inspection tied to sensor performance
• Slow sensor response on upstream Bank 1 Sensor 1 monitoring

Installation Notes and Tips

Confirm the vehicle’s year, make, model, and upstream Bank 1 Sensor 1 location before installation. Match the threaded mounting style, wire count, and harness length to the original sensor connector routing. For a 1991-1994 Mitsubishi Eclipse, 1991-1994 Plymouth Laser, or 1991-1992 Mitsubishi Galant, verify the exhaust sensor position and inspect the connector and wiring path for heat damage before replacing the sensor.

Quality Assurance

NTK manufactures oxygen sensors with OE-focused engineering and extensive production testing to help ensure quality and reliability that meet or exceed original equipment specifications. As part of the NGK family of products, NTK supports broad application coverage for import and domestic vehicles.