Denso 234-4634 Oxygen Sensor - Upstream

OE Style Oxygen Sensor for Upstream Applications

This Denso OE Style oxygen sensor is a specific-fit, heated replacement built for upstream emission control service. It is engineered for 2000 Dodge Dakota, 2000 Dodge Durango, and 1999-2000 Jeep Grand Cherokee applications, with the exact connector and threaded mounting needed for a direct replacement.

Part number 234-4634 is designed to restore accurate exhaust oxygen feedback for the engine management system. Denso 234-4634 is a practical choice when you need an OE-style sensor for Dodge Dakota, Dodge Durango, or Jeep Grand Cherokee upstream service.

Key Features

• OE Style replacement from Denso
• Heated oxygen sensor for faster operating response
• Specific fit for direct application matching
• 4-wire design with female connector
• Threaded mounting with 0.708 in. thread diameter
• 12.20 in. wiring harness length
• Built to OE standards for exact replacement fit
• Aluminum oxide trap layer helps protect the ceramic element from silicone and lead contamination

Product Details

Denso manufactures this oxygen sensor to OE-style specifications for accurate fitment and dependable signal delivery. The heated design helps the sensor reach operating temperature efficiently, while the specific-fit configuration supports straightforward replacement on the listed upstream locations. The part number 234-4634 also cross-references Bosch 13132 for the same application.

Compatible With 2000 Dodge Dakota, upstream; 2000 Dodge Durango, upstream; and 1999-2000 Jeep Grand Cherokee, upstream. These vehicle-specific applications make it easier to match the correct sensor for emission control service on the listed models.

Common Issues This Sensor May Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel feedback to the engine control system
• Reduced fuel economy caused by a worn upstream sensor
• Slow sensor response during closed-loop operation
• Emission test failures tied to faulty exhaust oxygen readings

Installation Notes and Tips

Verify the upstream location, connector style, wire count, and thread size before installation. Compare the original sensor length and connector orientation to the new part to confirm a proper match. For best results, inspect the harness routing and exhaust threads before installing Denso 234-4634 on Dodge Dakota, Dodge Durango, or Jeep Grand Cherokee applications.

Quality Assurance

Denso builds this OE Style oxygen sensor to strict original-equipment standards and tests it for replacement accuracy and first-time fit. The protective trap layer is part of the sensor design to help resist contamination and support long-term performance.