NTK AJ0009 Air Charge Temperature Sensor

Air Charge Temperature Sensor Overview

NTK AJ0009 is an air charge temperature sensor for import and domestic applications that require accurate intake air temperature input. It uses a plastic body, a rectangular female connector, and a push-on mount with two blade terminals for a direct electrical interface.

Compatible With a wide range of Toyota, Subaru, Mazda, Suzuki, Chevrolet, Geo, and Pontiac applications, this sensor supports intake air temperature monitoring across multiple engine management systems. The NTK AJ0009 part number is also referenced in interchange listings for cross-shopping.

• Plastic sensor housing for a lightweight, compact design
• Rectangular female connector with one connection point
• Two blade terminals with male terminal ends
• Push-on mounting style for straightforward sensor replacement
• Air charge temperature sensing for engine management input

Detailed Application Coverage

This NTK air charge temperature sensor is used in applications such as the Toyota Camry, Toyota Corolla, Toyota RAV4, Subaru Outback, and Mazda Protege. The AJ0009 part number appears across many intake air and manifold temperature sensor applications, including vehicles that place the sensor in the air cleaner, intake duct, or intake manifold area. For buyers searching by fitment, NTK AJ0009 covers a broad range of Toyota Camry and Toyota Corolla model years, along with Subaru and Mazda applications listed in the fitment data.

NTK builds on its OE sensor experience with technical sensors that undergo thermal shock, vibration, and OBD verification testing. The brand positions this sensor line around OE-level specification control and broad aftermarket coverage for import and domestic vehicles. This part cross-references Beck/Arnley 158-0526 for the same application.

Common Replacement Reasons

• Incorrect intake air temperature readings
• Driveability issues related to sensor input
• Fault codes tied to air charge or intake manifold temperature signals
• Hard starting or inconsistent fuel control caused by inaccurate air temperature data
• Replacement of a worn or damaged NTK AJ0009 sensor

Installation Notes

Verify the connector shape, terminal count, and mount type before installation. This sensor uses a push-on design with a rectangular female connector and two blade terminals, so the mating harness must match the electrical interface. Confirm the vehicle-specific location in the intake tract or air cleaner assembly using the fitment notes before replacing the original unit.

Quality Assurance

NTK states that its technical sensors are tested under thermal shock, vibration, and OBD verification conditions and manufactured to meet or exceed OE specifications. The AJ0009 is part of NTK’s Sensor Specialist line, backed by the brand’s OE supplier experience in the aftermarket.