NTK 24441 Oxygen Sensor - Downstream

Direct Fit Oxygen Sensor for Mazda CX-7

The NTK 24441 is a direct fit heated oxygen sensor built for specific applications, including the 2007-2012 Mazda CX-7 downstream position. It is engineered to match OE fit, form, and function for accurate exhaust monitoring and dependable emissions system performance.

Key Features

• Direct fit, specific application oxygen sensor
• Heated sensor design for faster operating response
• 4-wire configuration with 25.25-inch wiring harness
• 18 mm threaded mounting type
• Built to meet or exceed OE specifications
• Compatible with 2007-2012 Mazda CX-7 downstream applications

Product Details

NTK Direct Fit Oxygen Sensor 24441 is part of NTK’s OE-focused sensor line, developed from the brand’s ceramics and sensor manufacturing expertise. NTK controls ceramic production from raw material through finished sensor, helping maintain consistent quality and application accuracy. For drivers and repair shops servicing a Mazda CX-7 oxygen sensor replacement, this part is a direct-fit solution for the downstream B1S2 location and is designed to restore proper exhaust feedback to the engine management system. This part cross-references DENSO Auto Parts 234-4044 for the same application.

What This Sensor Helps Address

• Check engine light related to downstream oxygen sensor faults
• Incorrect air-fuel ratio feedback from a worn sensor
• Emissions test failures tied to sensor performance
• Rough idle or drivability issues caused by inaccurate exhaust readings
• Service replacement for a Mazda CX-7 downstream oxygen sensor

Installation Notes

Verify the connector, wire length, thread diameter, and downstream position before installation. This NTK 24441 oxygen sensor uses a threaded mount and a 4-wire heated design, so matching the original sensor configuration is important for proper installation. Confirm vehicle year and engine application against the listed fitment for the 2007-2012 Mazda CX-7.

Quality Assurance

NTK manufactures oxygen sensors to OE-level standards and tests them during production for quality and reliability. As the Sensor Specialist and a major original equipment oxygen sensor supplier, NTK focuses on application-specific coverage and consistent sensor performance.