NTK 22528 Oxygen Sensor - Upstream Rear

NTK Direct Fit Oxygen Sensor for Mazda MPV

NTK part 22528 is a direct fit heated oxygen sensor built for specific applications, including 2002-2006 Mazda MPV upstream rear service positions. It is engineered with an 11.75-inch wiring harness, 4-wire configuration, 18 mm thread diameter, and threaded mounting for OE-style replacement on the Mazda MPV.

Direct-Fit Sensor Line

NTK Direct Fit Oxygen Sensors are part of NTK’s OE-focused sensor line, developed to streamline coverage while maintaining fit, form, and function for import and domestic vehicles. For Mazda MPV oxygen sensor replacement, this line is built around application-specific fitment rather than universal adaptation.

Key Features

• Part number 22528 direct fit oxygen sensor
• Fits 2002-2006 Mazda MPV, upstream rear
• Heated oxygen sensor design
• Specific fit for OE-style installation
• 4-wire sensor configuration
• 18 mm threaded mounting
• 11.75-inch wiring harness length

Detailed Description

NTK 22528 is an emission control oxygen sensor intended for vehicles that require a specific-fit replacement in the upstream rear location. For Mazda MPV oxygen sensor service, this sensor supports accurate exhaust feedback to the engine management system, helping maintain proper air-fuel control and emissions performance. NTK manufactures oxygen sensors with ceramic technology and extensive production testing to meet or exceed OE specifications, giving this replacement a strong match for factory-style service needs. This part cross-references DENSO Auto Parts 234-4724 and Bosch 15314 for the same application.

Common Issues This Sensor May Address

• Check engine light related to oxygen sensor performance
• Fault codes tied to upstream rear sensor readings
• Rough idle or inconsistent fuel control from a failing sensor
• Increased emissions from degraded exhaust feedback
• Delayed sensor response during closed-loop operation

Installation Notes and Tips

Verify the connector, harness length, thread size, and mounting style before installation. This NTK oxygen sensor uses a threaded mount and 4-wire heated design, so it should be matched to the original sensor location and configuration on the Mazda MPV. Confirm the upstream rear position and inspect the exhaust bung threads before removal and replacement.

Quality Assurance

NTK is a major original equipment oxygen sensor manufacturer, and this direct fit sensor is produced with OE application standards in mind. Each sensor is tested during manufacturing to support reliable operation and consistent fitment for the listed Mazda MPV applications.