NTK 22119 Oxygen Sensor - Upstream Front

Direct-Fit Oxygen Sensor

NTK 22119 is a specific-fit heated oxygen sensor built for emission control applications. It is engineered for direct replacement use and matches the original mounting style with a threaded design and 4-wire configuration.

Key Features

• Heated oxygen sensor for precise exhaust monitoring
• Specific-fit design for straightforward replacement
• Threaded mounting type with 18 mm thread diameter
• 23.5-inch wiring harness length
• NTK 22119 direct-fit replacement for emission control service

Detailed Description

NTK 22119 is a direct fit oxygen sensor from NTK’s Direct Fit Oxygen Sensor line, developed for accurate replacement in import and domestic applications. As a heated sensor with a threaded mount and 4-wire layout, it is built to match the original sensor configuration and support proper exhaust feedback. This part fits 2001-2002 Mazda Millenia, upstream front, and the fitment notes specify bank 2, sensor 1. For cross-reference, this part cross-references DENSO Auto Parts 234-4148 for the same application.

What It Is Used For

• Replacing a worn or slow-responding oxygen sensor
• Restoring exhaust gas feedback to the engine control system
• Addressing check engine light concerns related to sensor performance
• Correcting drivability issues tied to inaccurate air-fuel readings
• Maintaining emission control system operation

Installation Notes and Tips

Verify the threaded mounting style, wire count, and harness length before installation. Confirm the upstream front location and bank 2, sensor 1 note for the Mazda Millenia application. Use the part number 22119 to match the correct direct-fit sensor during service.

Quality Assurance

NTK states that its oxygen sensors are extensively tested during manufacturing and built to meet or exceed OE specifications. The brand also notes its OE-supplier background and application coverage for import and domestic vehicles. Part number 22119 is part of NTK’s direct-fit oxygen sensor line.