Denso 234-8076 Oxygen Sensor - Downstream

Denso 234-8076 Oxygen Sensor for Toyota C-HR

Denso 234-8076 is an OE-style heated oxygen sensor built for precise replacement and consistent signal performance. It is a specific-fit downstream sensor for Toyota C-HR models, with OE-style engineering that supports accurate exhaust monitoring and dependable drivability.

Key Features

• OE Style replacement oxygen sensor for direct-fit service
• Heated sensor design for faster operating response
• Specific fit with threaded mounting for the correct application
• 4-wire configuration with male connector
• 19.88-inch wiring harness length for proper routing
• Precision-built to match OE standards for Toyota C-HR applications
• Part number 234-8076 for easy identification

Product Details

This Denso oxygen sensor is engineered for the downstream position on 2018-2022 Toyota C-HR models. The OE Style line is built for exact replacement, helping ensure first-time fitment and reliable integration with the vehicle’s emissions system. Denso also uses an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting long-term sensor durability and stable engine management. If you are searching for a downstream oxygen sensor for Toyota C-HR 2019-2022 or a direct replacement for Toyota C-HR 2018, part number 234-8076 is the correct OE-style reference.

This part cross-references Toyota 8946510080 for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings from a worn downstream sensor
• Reduced fuel efficiency caused by inaccurate exhaust feedback
• Emissions system faults on Toyota C-HR models
• Slow sensor response from age, contamination, or heat cycling

Installation Notes and Tips

Install this sensor in the downstream position only on the listed Toyota C-HR applications. Confirm the threaded mounting, 4-wire connector, and harness length match the original sensor before installation. For best results, inspect the exhaust threads and connector condition, and route the harness away from heat sources and moving components.

Quality Assurance

Denso manufactures and tests these oxygen sensors to OE standards for accurate fit and dependable operation. The OE Style design is intended to deliver the right part and the right fit for the listed Toyota C-HR applications.