NTK 23154 Oxygen Sensor - Downstream Right

Direct-fit oxygen sensor for Ram trucks

NTK 23154 is a specific-fit heated oxygen sensor built for downstream right applications on select Ram heavy-duty trucks. It is engineered for direct replacement use and matches the threaded mounting style used in the original application.

Key features

• Heated oxygen sensor design for emissions monitoring
• Specific-fit configuration for direct replacement
• 4-wire construction for signal and heater circuit operation
• Threaded mounting with 18.000 thread diameter
• 25.0 wiring harness length for application-specific routing

Fitment details

Compatible with 2014-2020 Ram 5500, downstream right. Compatible with 2014-2019 Ram 3500, downstream right. Compatible with 2014-2019 Ram 4500, downstream right.

What this sensor helps address

• Check engine light concerns related to oxygen sensor performance
• Incorrect exhaust oxygen readings affecting engine management
• Emissions system faults tied to a worn or failed sensor
• Slow or inaccurate sensor response in heated oxygen sensor circuits

Installation notes and tips

Verify the downstream right B2S2 location before installation and confirm the connector routing matches the original harness path. The threaded design supports direct replacement in the listed Ram 3500, Ram 4500, and Ram 5500 applications. Part number 23154 should be matched to the vehicle’s original sensor configuration, and this part cross-references 68234701AA for the same application.

Quality assurance

NTK is part of the NGK family of products and is a major original equipment oxygen sensor supplier. NTK 23154 is manufactured and tested to meet or exceed OE specifications for fit, form, and function.