NTK 25218 Oxygen Sensor - Downstream Right

Direct Fit Oxygen Sensor Overview

The NTK 25218 is a direct fit oxygen sensor built for specific applications and engineered for OE-style fit, form, and function. It is a heated, threaded sensor with a 4-wire design and a 27.5-inch harness for a precise replacement on select vehicles.

Fits 2011-2012 Kia Sedona, downstream right. This NTK oxygen sensor is part of the Direct Fit Oxygen Sensor line, which focuses on streamlined coverage and application-specific replacement parts.

Key Features

• Heated oxygen sensor for faster operating response.
• Specific-fit design for direct replacement use.
• Threaded mounting type for secure installation.
• 4-wire configuration with a 27.5-inch harness.
• 18 mm thread diameter for the listed application.

Detailed Description

NTK 25218 is an emission control oxygen sensor intended for the downstream right position on select Kia Sedona models. As part of NTK's Direct Fit Oxygen Sensor line, it is built around application-specific coverage and OE-style dimensions to match the original sensor configuration. NTK draws on its background as a major original equipment oxygen sensor manufacturer, and each sensor is extensively tested during production to meet or exceed OE specifications.

For buyers searching for a 2011-2012 Kia Sedona downstream right oxygen sensor, NTK 25218 provides a direct-fit replacement path without changing the sensor type or mounting style. The heated design, threaded body, and 4-wire layout support proper integration with the vehicle's emissions system.

What This Part Helps Address

• Faulty oxygen sensor readings.
• Check engine light concerns related to the oxygen sensor circuit.
• Emissions system performance issues.
• Incorrect air-fuel mixture feedback from a worn sensor.
• Replacement needs for a threaded heated oxygen sensor.

Installation Notes and Tips

Verify the downstream right location and connector configuration before installation. Confirm thread diameter and harness length against the removed sensor to ensure proper routing and fitment. This part cross-references Bosch 18021 and DENSO Auto Parts 234-4548 for the same application.

Quality Assurance

NTK states that its oxygen sensors are extensively tested during manufacturing and built to meet or exceed OE specifications. The brand is part of the NGK family of products and is recognized for original equipment oxygen sensor manufacturing.