NTK 24036 Oxygen Sensor - Upstream

Direct Fit Oxygen Sensor for Mazda RX-7

NTK Direct Fit Oxygen Sensor 24036 is a specific-fit, threaded oxygen sensor for select Mazda RX-7 applications. It uses a non-heated, single-wire design with a 13.5-inch wiring harness and 18 mm thread diameter for direct replacement service.

Key Features

• Specific-fit oxygen sensor for direct replacement
• Non-heated, 1-wire design
• 13.5-inch wiring harness length
• 18 mm threaded mounting type
• Built by NTK, a supplier focused on OE-style sensor coverage

Product Details

NTK Direct Fit Oxygen Sensor 24036 is engineered for import and domestic emission control applications, with manufacturing control over the ceramic sensing element from raw material through finished product. NTK applies OE-focused design and testing practices to support fit, form, and function that align with original equipment expectations. This sensor is listed for 1989-1991 Mazda RX-7, upstream, including Bank 1 Sensor 1 oxygen sensor applications.

This part cross-references DENSO Auto Parts 234-1040 for the same application.

Common Symptoms It May Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel mixture readings
• Rough idle or drivability concerns tied to exhaust feedback
• Failed emissions inspection caused by sensor output issues
• Slow or inaccurate upstream sensor response

Installation Notes and Tips

Verify the vehicle’s original sensor connector, thread size, and upstream location before installation. For 1989-1991 Mazda RX-7, confirm Bank 1 Sensor 1 placement and route the 13.5-inch harness away from exhaust heat and moving components. Use proper oxygen sensor service tools and follow the vehicle service manual for torque and wiring routing.

Quality Assurance

NTK is part of the NGK family of products and is recognized as a major original equipment oxygen sensor manufacturer. This sensor is manufactured and tested to meet or exceed OE specifications for quality and reliability.