Denso 234-5170 Air / Fuel Ratio Sensor - Upstream or Upstream Right

Denso OE Style Air/Fuel Ratio Sensor

Denso 234-5170 is an OE Style heated air/fuel ratio sensor built for direct replacement on select Ram and Jeep applications. It is engineered for specific fitment, accurate connector alignment, and a first-time fit on vehicles that call for a 5-wire upstream sensor.

The Denso OE Style line focuses on exact replacement parts that follow original equipment standards for fit and function. For buyers searching for a Denso 234-5170 air/fuel ratio sensor for Jeep Grand Cherokee or Ram 1500 upstream right applications, this part is built to match the original sensor layout and wiring requirements.

Key Features

• Heated air/fuel ratio sensor for upstream exhaust placement
• Specific fit design for direct replacement service
• 5-wire configuration with male connector
• 23.70 wiring harness length
• 0.708 thread diameter
• OE Style replacement for select Jeep and Ram vehicles

Detailed Product Information

Denso 234-5170 is manufactured and tested to OE-level standards for replacement use on emissions control systems. The sensor is designed for vehicles that require a heated upstream air/fuel ratio sensor, helping maintain the correct signal input to the engine management system. This part cross-references Bosch 17213 for the same application. Common search terms for this part include upstream air fuel ratio sensor for 2016-2019 Jeep Grand Cherokee, upstream right sensor for 2016-2018 Ram 1500, and OE style replacement sensor for Ram ProMaster models.

What This Sensor Helps Address

• Check engine light related to air/fuel ratio sensor performance
• Incorrect upstream sensor signal readings
• Emissions control faults tied to sensor response
• Rough idle or drivability issues caused by faulty mixture feedback
• Replacement needs after sensor aging, contamination, or electrical failure

Installation Notes and Tips

Verify the connector style, wire count, thread diameter, and sensor position before installation. This part is listed for specific fit applications only, including Fits 2016-2019 Jeep Grand Cherokee, Upstream; Fits 2016-2018 Ram 1500, Upstream Right; and Fits 2014-2016 Ram ProMaster 1500/2500/3500, Upstream. Confirm the original sensor location and harness routing on the vehicle before replacing the part.

Quality Assurance

Denso builds this OE Style sensor to strict original-equipment standards and tests each component for replacement accuracy and fit consistency. The goal is a direct-fit sensor that matches the vehicle’s required configuration for dependable service on the listed Jeep and Ram applications.