NTK 22117 Oxygen Sensor - Upstream Front

Direct Fit Oxygen Sensor for Mazda 626

Restore accurate exhaust feedback with this NTK direct fit oxygen sensor, part number 22117. It is a specific-fit, heated sensor built with a threaded mounting design and a 4-wire harness for straightforward replacement on select Mazda 626 applications.

Key Features

• Heated oxygen sensor for faster operating response.
• Specific-fit design for direct replacement applications.
• 4-wire configuration with a 20.75-inch wiring harness.
• Threaded mounting type with an 18 mm thread diameter.
• NTK part number 22117 for catalog matching.

Detailed Description

NTK 22117 is a direct fit oxygen sensor engineered for select Mazda 626 models, including 2000-2002 applications listed as upstream front. It uses NTK's OE-focused sensor manufacturing approach and is tested during production to meet or exceed OE specifications for fit, form, and function. This part cross-references Bosch 13574 and DENSO Auto Parts 234-4148 for the same application.

NTK's Direct Fit Oxygen Sensor line is built for buyers who want a replacement sensor that follows the original application layout without universal adaptation. For Mazda 626 owners, that means a sensor matched to the vehicle's specific emissions setup and wiring requirements.

What It Helps Solve

• Faulty oxygen sensor readings that trigger emissions-related trouble codes.
• Slow sensor response that affects fuel control feedback.
• Wiring mismatch issues from non-specific replacement sensors.
• Fitment problems on direct replacement Mazda 626 oxygen sensor applications.

Installation Notes and Tips

Verify the upstream front location and bank/sensor notes before ordering. Confirm the 18 mm threaded mounting style and 4-wire harness layout against the original sensor. Use the vehicle's emissions configuration, including California emissions notes where listed, to match the correct application.

Quality Assurance

NTK states that these oxygen sensors are extensively tested during manufacturing to support quality and reliability that meets or exceeds OE specifications. NTK is part of the NGK family of products and is a major OE oxygen sensor supplier.