NTK 23502 Oxygen Sensor - Upstream

Direct Fit Oxygen Sensor

NTK Oxygen Sensor 23502 is a specific-fit, heated oxygen sensor built for direct replacement service. It uses a threaded mounting design and a 3-wire configuration with a 10.7500-inch harness length for a clean, application-matched installation.

Compatible with Jeep Cherokee, Jeep Comanche, Jeep Wrangler, and Jeep Wagoneer applications listed below, this NTK oxygen sensor supports accurate air/fuel ratio feedback in upstream locations. The NTK Direct Fit Oxygen Sensor line focuses on OE-style fit, form, and function for import and domestic coverage.

Key Features

• Heated oxygen sensor design for faster operating response.
• Specific-fit construction for direct replacement service.
• Threaded mounting type with 18.000 thread diameter.
• 3-wire layout with 10.7500-inch wiring harness length.
• NTK part number 23502 for application matching and lookup.

Application Details

Fits 1987-1990 Jeep Cherokee, upstream.

Fits 1986-1990 Jeep Comanche, upstream.

Fits 1987-1990 Jeep Wrangler, upstream.

Fits 1987 Jeep Wagoneer, upstream.

This part cross-references Bosch 12008 and DENSO Auto Parts 234-3005 for the same application.

What It Is Used For

• Replacing a worn or slow-responding oxygen sensor.
• Restoring air/fuel ratio signal accuracy.
• Addressing sensor-related drivability or emissions faults.
• Correcting upstream sensor performance issues.

Installation Notes and Tips

Verify the connector, thread size, and harness length against the original sensor before installation. Confirm the upstream Bank 1 Sensor 1 application shown in the fitment data, and inspect the exhaust bung threads for damage or contamination before threading in the new sensor.

Quality Assurance

NTK is a major original equipment oxygen sensor supplier and tests these sensors during manufacturing to meet or exceed OE specifications. The brand's Direct Fit Oxygen Sensor line is built to deliver OE-style fit, form, and function.