Denso 234-4718 Oxygen Sensor - Downstream, Downstream Right or Upstream

OE Style Oxygen Sensor for Dodge Applications

This Denso OE Style oxygen sensor is built for direct replacement in select Dodge Dakota, Dodge Durango, and Dodge Ram 1500 applications. Part number 234-4718 is a specific-fit, heated sensor with a 4-wire female connector and threaded mounting for accurate exhaust monitoring.

Key Features

• Heated oxygen sensor for faster operating response
• Specific-fit design for direct replacement on listed Dodge vehicles
• 4-wire configuration with female connector
• Threaded mounting type with 0.708 in. thread diameter
• 11.81 in. wiring harness length for proper routing
• Denso OE Style construction for exact replacement fit

Built to OE Standards

Denso OE Style sensors are manufactured and tested to OE-level standards for consistent performance and first-time fitment. The sensor uses Denso’s aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine management and long service life. This part number 234-4718 is a direct replacement choice for drivers servicing Dodge Dakota, Dodge Durango, or Dodge Ram 1500 exhaust sensor faults.

This part cross-references Bosch 13610 and NTK 23527 for the same application.

What It Helps Fix

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings
• Reduced fuel economy from a failing upstream or downstream sensor
• Rough idle or drivability issues tied to exhaust feedback
• Slow sensor response after contamination or age-related wear

Installation Notes and Fitment

Fits 2003-2004 Dodge Dakota, Upstream.

Fits 2003-2004 Dodge Dakota, Downstream Right.

Fits 2003 Dodge Dakota, Downstream.

Fits 2002-2004 Dodge Durango, Upstream.

Fits 2004 Dodge Durango, Downstream Right.

Fits 2003-2004 Dodge Ram 1500, Upstream.

Fits 2004 Dodge Ram 1500, Downstream.

Fits 2003 Dodge Durango, Downstream Right, California exempt parts can be used on pollution controlled vehicles in California.

Fits 2003 Dodge Durango, Downstream, Exceptional fitment for vehicles in California.

Fits 2003 Dodge Ram 1500, Downstream Right, California exempt parts can be used on pollution controlled vehicles in California.

Confirm connector style, sensor position, and thread size before installation. Route the harness away from heat sources and inspect the exhaust bung threads for damage before tightening.

Quality Assurance

Denso manufactures this OE Style oxygen sensor to strict original-equipment standards and tests each unit for replacement accuracy and fit. The design focuses on dependable sensor output, contamination resistance, and consistent performance across the listed Dodge Dakota, Dodge Durango, and Dodge Ram 1500 applications.