NTK 27003 Air / Fuel Ratio Sensor - Upstream

Direct-Fit Air/Fuel Ratio Sensor

NTK 27003 is a direct-fit air/fuel ratio sensor for specific applications, built with a heated 5-wire design and application-specific harness length. It is engineered for accurate exhaust feedback and OE-style fitment on the listed vehicle coverage.

Key Features

• Direct-fit design for straightforward replacement on the specified application.
• Heated sensor construction for faster operating response.
• 5-wire configuration for air/fuel ratio monitoring.
• 20.5-inch wiring harness length for application-specific routing.
• 18 mm thread diameter with 0.38-inch thread length.
• NTK 27003 is backed by extensive manufacturing testing for quality and reliability.

Detailed Description

This NTK air/fuel ratio sensor is part of the Direct Fit 5-Wire A/F Sensor line, which focuses on application-specific replacement parts with OE-style form and function. NTK 27003 is built for the upstream oxygen sensor location on 2013-2016 Dodge Dart models, including Bank 1 Sensor 1 coverage. As an NTK sensor, it reflects the brand’s OE-supplier background and ceramic manufacturing expertise, with production controls that support consistent performance.

This part cross-references DENSO Auto Parts 234-5150 and Mopar 68087364AA for the same application.

What It Is Used For

• Replacing a failed upstream air/fuel ratio sensor.
• Restoring accurate exhaust mixture feedback to the engine control system.
• Addressing sensor-related fault codes tied to mixture monitoring.
• Correcting drivability issues caused by inaccurate oxygen sensing.
• Maintaining proper emissions system operation on the listed Dodge Dart coverage.

Installation Notes and Tips

Verify the connector, harness length, thread size, and upstream Bank 1 Sensor 1 location before installation. Use the vehicle’s service information to confirm the exact application for your Dodge Dart. The mounting bracket is not included.

Quality Assurance

NTK states that this sensor is extensively tested during manufacturing and built to meet or exceed OE specifications. The brand’s OE-supplier background and ceramic technology support consistent fit, form, and function.