NTK 23135 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Direct Fit Oxygen Sensor for Dodge and Jeep

NTK 23135 is a direct fit heated oxygen sensor built for specific upstream applications on select Dodge and Jeep vehicles. It uses a 4-wire, threaded design with an 11.75-inch wiring harness for OE-style replacement on emissions-critical engine management systems.

Key Features

• Specific-fit oxygen sensor for direct replacement
• Heated sensor design for faster operating temperature
• 4-wire configuration with 11.7500 wiring harness length
• 18.000 thread diameter and threaded mounting type
• OE-focused fit, form, and function from NTK
• Extensively tested during manufacturing for quality and reliability

Product Details

NTK is the Sensor Specialist and a major original equipment oxygen sensor supplier, with ceramic technology and manufacturing control from raw material through finished sensor. The NTK Direct Fit Oxygen Sensor line is built to streamline replacement selection while maintaining OE application coverage. Part number 23135 is engineered for upstream left, upstream right, and upstream positions where listed, including Dodge Ram 1500, Ram 2500, Ram 3500, Dakota, Durango, and Jeep Grand Cherokee, Liberty, TJ, and Wrangler applications. This part cross-references Bosch 13664 and DENSO Auto Parts 234-4274 for the same application.

Common Uses

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio feedback to the engine control module
• Slow sensor response on heated upstream sensor circuits
• Emissions test failures tied to sensor signal issues
• Rough idle, hesitation, or fuel trim concerns caused by a failing O2 sensor

Installation Notes

Verify the exact year, make, model, engine, emissions package, and sensor position before ordering. This NTK 23135 oxygen sensor is a specific-fit, threaded replacement, so connector style, harness length, and upstream bank/sensor location should match the original unit. Confirm whether your vehicle requires Bank 1 Sensor 1, Bank 2 Sensor 1, or another upstream location listed in the fitment data.

Quality Assurance

NTK manufactures oxygen sensors to meet or exceed OE specifications and tests them extensively during production for reliability. As part of the NGK family of products, NTK supports import and domestic applications with OE application technology and broad market coverage.