Denso 234-4602 Oxygen Sensor - Downstream or Downstream Right

Denso 234-4602 Oxygen Sensor for OE-Style Replacement

Denso 234-4602 is a heated, specific-fit oxygen sensor built for direct replacement in select Dodge and Jeep applications. It is engineered for the downstream positions on the listed vehicles, with OE-style fitment and a 4-wire female connector for a precise match.

For drivers searching for a downstream oxygen sensor for a 2000 Dodge Dakota, 2000 Dodge Durango, or 1999-2000 Jeep Grand Cherokee, this Denso part number 234-4602 is built to match the original sensor layout and connection style.

Key Features

• Heated oxygen sensor for faster operating response
• Specific fit design for direct replacement
• 4-wire configuration with female connector
• Threaded mounting type with 0.708 in. thread diameter
• Wiring harness length: 13.98 in.
• OE Style product line for factory-like fit and function

OE Style Construction

Denso’s OE Style line is built around exact replacement fitment and consistent sensor performance. The sensor uses an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine management and long service life. This makes Denso 234-4602 a practical choice when replacing a worn downstream oxygen sensor on a Dodge Dakota, Dodge Durango, or Jeep Grand Cherokee.

This part cross-references Bosch 13134 and NTK 23509 for the same application.

What This Oxygen Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel mixture readings from a failing downstream sensor
• Reduced fuel economy caused by inaccurate exhaust feedback
• Rougher engine operation tied to sensor degradation
• Slow or inconsistent sensor response after extended use

Installation Notes and Fitment

Fits 2000 Dodge Dakota, downstream. Fits 2000 Dodge Durango, downstream right. Fits 1999-2000 Jeep Grand Cherokee, downstream. Confirm connector style, thread size, and sensor position before installation to ensure the replacement matches the original unit.

Use the vehicle’s original routing and mounting points when installing this threaded, specific-fit sensor. The 13.98-inch harness length and 4-wire female connector are important match points for the listed applications.

Quality Assurance

Denso manufactures and tests this oxygen sensor to OE-level standards for replacement accuracy and consistent performance. The part is precision built for first-time fitment and is designed to meet the requirements of the listed applications.