Denso 234-4528 Oxygen Sensor - Downstream

Denso OE Style Oxygen Sensor 234-4528

Denso 234-4528 is an OE-style heated oxygen sensor built for direct replacement on select Chevrolet applications. It is engineered for a specific fit and uses a threaded mounting design with a 4-wire female connector for straightforward replacement on the listed downstream positions.

The Denso OE Style line is built and tested to OE standards, with precision construction for accurate fitment and consistent sensor performance. This sensor also uses Denso’s aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine operation and fuel control over time.

Key Features

• Heated oxygen sensor for downstream exhaust monitoring
• Specific-fit design for direct replacement
• 4-wire configuration with female connector
• Threaded mounting type with 0.708 in. thread diameter
• 10.71 in. wiring harness length
• OE Style construction for exact replacement fit

Vehicle Fitment

• Fits 2017-2020 Chevrolet Sonic, Downstream; O.E. Quality Direct Fit Replacement Sensor; Oxygen Sensor - OE Style
• Fits 2016 Chevrolet Cruze Limited, Downstream; OE Style
• Fits 2012-2016 Chevrolet Sonic, Downstream; OE Style
• Fits 2011-2015 Chevrolet Cruze, Downstream; OE Style
• Fits 2013-2014 Chevrolet Trax, Downstream; OE Style

This part cross-references Bosch 16736 and NTK 25727 for the same application.

Detailed Description

Use Denso 234-4528 when replacing a downstream oxygen sensor on Chevrolet Sonic, Chevrolet Cruze, Chevrolet Cruze Limited, or Chevrolet Trax models listed above. The sensor is designed for exact replacement fitment, helping maintain proper exhaust feedback for the engine control system. If you are searching for a downstream oxygen sensor for a 2011-2015 Chevrolet Cruze or a 2012-2016 Chevrolet Sonic, this OE-style Denso unit matches the specified application.

Common Issues This Part May Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel feedback from a worn downstream sensor
• Reduced fuel economy caused by inaccurate exhaust readings
• Slow or inconsistent sensor response
• Contamination-related sensor degradation from exhaust exposure

Installation Notes and Tips

Confirm the downstream location, connector style, wire count, and thread size before installation. Compare the original sensor’s harness length and connector orientation to the replacement part to ensure proper routing and secure connection. Because this is a threaded sensor, use the correct oxygen sensor tool and follow the vehicle service procedure for removal and installation.

Quality Assurance

Denso manufactures and tests this oxygen sensor to OE standards for precise fit and dependable operation. The OE Style design is intended to deliver the correct part and fit for the listed Chevrolet applications on the first installation.