Denso 234-4230 Oxygen Sensor - Downstream

Denso OE Style Oxygen Sensor for 2005 Dodge Neon

Denso 234-4230 is a heated, specific-fit oxygen sensor built for the downstream position on the 2005 Dodge Neon. It is engineered to match OE-style dimensions and connector layout for a direct replacement on the 2005 Dodge Neon downstream sensor application.

Key Features

• OE Style replacement oxygen sensor for precise fitment
• Heated sensor design for faster operating temperature
• Specific fit with a female connector and 4-wire configuration
• Threaded mounting with a 0.708 in thread diameter
• 24.80 in wiring harness length for the listed application
• Denso part number 234-4230 for downstream oxygen sensor service

Product Details

Denso 234-4230 is part of the OE Style line, which focuses on direct-replacement components built to match original equipment fit and function. For the 2005 Dodge Neon, downstream oxygen sensor replacement is supported by a sensor design that uses a heated element, threaded mounting, and a vehicle-specific connector arrangement. Denso also incorporates an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine management and long service life. If you are searching for a 2005 Dodge Neon downstream oxygen sensor or a Denso 234-4230 OE-style replacement, this part is built for that exact application.

This part cross-references Bosch 13877 and NTK 23155 for the same application.

Common Issues This Part May Address

• Check engine light related to downstream oxygen sensor faults
• Incorrect air-fuel feedback from a worn sensor
• Reduced fuel economy caused by aging exhaust sensor performance
• Slow sensor response after contamination or heat cycling
• Exhaust emissions concerns tied to a failing oxygen sensor

Installation Notes and Tips

Fits 2005 Dodge Neon, downstream. Confirm the connector style, wire count, thread diameter, and harness length before installation. Inspect the exhaust bung threads and sensor wiring routing during replacement to avoid damage and ensure a secure threaded mount. Use the vehicle’s OE-style downstream sensor location and verify the connector locks fully into place.

Quality Assurance

Denso manufactures and tests this oxygen sensor to OE standards for exact replacement fit and consistent performance. The OE Style line is designed to deliver the correct part and fit for the listed vehicle application.