NTK 25693 Oxygen Sensor - Downstream, Intermediate or Upstream

Direct Fit Oxygen Sensor for Mitsubishi

NTK Direct Fit Oxygen Sensor 25693 is a heated, specific-fit replacement built for Mitsubishi emissions applications. It is engineered for direct installation on select Mitsubishi Eclipse Cross, Outlander, Outlander Sport, RVR, and Lancer models with downstream, upstream, or intermediate placement where listed.

NTK is the Sensor Specialist for import and domestic vehicles, and the Direct Fit Oxygen Sensor line is built around OE application coverage and streamlined product selection. Part number 25693 uses OE-equivalent design and is manufactured with NTK’s ceramic expertise to support accurate sensor performance and consistent fitment.

Key Features

• Heated oxygen sensor with specific-fit design
• 4-wire configuration for listed Mitsubishi applications
• Threaded mounting type with 18 mm thread diameter
• 36.5 in. wiring harness length
• OE-equivalent design for direct replacement use
• Fits downstream, upstream, and intermediate positions where specified

Detailed Description

NTK 25693 is a direct fit oxygen sensor for Mitsubishi emissions control systems. It is listed for 2008-2023 Mitsubishi Eclipse Cross, Outlander, Outlander Sport, RVR, and Lancer applications, including downstream oxygen sensor locations, Bank 1 Sensor 1 upstream air/fuel ratio positions, and intermediate placements after the primary catalyst where noted. This part cross-references Bosch 18074 for the same application.

As part of NTK’s Direct Fit Oxygen Sensor line, this sensor is built to match OE-style form and function for the listed vehicles. It is a practical replacement choice for Mitsubishi Lancer oxygen sensor, Mitsubishi Outlander downstream oxygen sensor, and Mitsubishi Eclipse Cross downstream oxygen sensor service where the original sensor uses the same connector and mounting style.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Faulty air-fuel ratio feedback on listed upstream applications
• Slow or inaccurate sensor response in emissions monitoring
• Downstream catalyst monitoring issues on supported Mitsubishi models
• Replacement needs for damaged or aging factory oxygen sensors

Installation Notes

• Verify the exact year, model, engine/emissions setup, and sensor position before ordering.
• Match the connector, wire count, and threaded mounting style to the original sensor.
• Use the listed position carefully: downstream, upstream, or intermediate applications are not interchangeable.
• Follow factory service procedures and torque specifications during installation.
• Inspect the harness routing and connector condition before final assembly.

Quality Assurance

NTK states that its oxygen sensors are extensively tested during manufacturing to help ensure quality and reliability that meet or exceed OE specifications. The brand also supplies original equipment oxygen sensors globally, supporting OE-level application coverage for Mitsubishi emissions control service.