Denso 234-4002 Oxygen Sensor - Downstream or Upstream

Reliable Oxygen Sensor for Chrysler, Dodge, and Plymouth Vehicles

The Denso OE Style 234-4002 oxygen sensor is designed specifically for select Chrysler, Dodge, and Plymouth models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine management system.

• Heated sensor type for faster response times
• Specific fit for Chrysler, Dodge, and Plymouth models including Breeze, Caravan, Cirrus, Concorde, Intrepid, LHS, New Yorker, Stratus, and Voyager
• 16.81-inch wiring harness length for proper installation
• Threaded mounting type with 0.708-inch thread diameter
• Four-wire design with male connector for secure electrical connection

About the Denso OE Style Product Line

The OE Style line from Denso offers oxygen sensors engineered to meet original equipment specifications. This ensures compatibility and performance that align closely with factory-installed parts. The 234-4002 sensor maintains the quality and fitment standards expected from Denso’s OE Style series, providing a reliable replacement for emission control systems on specific Chrysler, Dodge, and Plymouth vehicles.

Detailed Product Description

The Denso 234-4002 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving emissions control efficiency shortly after engine start. Its four-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance. The 16.81-inch wiring harness length provides adequate reach for proper routing and connection within the engine bay. Designed with a threaded mounting type and a 0.708-inch thread diameter, this sensor installs securely in the exhaust system. The male connector ensures a precise and stable electrical connection, reducing the risk of signal loss or interference.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces harmful emissions by providing accurate oxygen level data
• Prevents engine performance issues such as rough idling or hesitation
• Resolves check engine light triggers related to oxygen sensor faults
• Supports fuel economy by enabling optimal engine tuning

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. The 234-4002 oxygen sensor is a direct fit replacement for the specified Chrysler, Dodge, and Plymouth models, so no modifications are necessary. Use appropriate tools to remove the old sensor and install the new one, taking care not to damage the wiring harness or connector. Verify the connector is fully seated to maintain a secure electrical connection.

Quality Assurance and Warranty

Denso manufactures the 234-4002 oxygen sensor to meet strict quality standards consistent with original equipment parts. While specific warranty details are not provided here, Denso products typically come with manufacturer-backed warranties to ensure reliability and customer confidence.