Denso 234-8041 Oxygen Sensor - Upstream

Denso 234-8041 Oxygen Sensor for OE-Style Replacement

Denso 234-8041 is a heated, specific-fit oxygen sensor built for direct replacement in select Toyota Matrix and Pontiac Vibe applications. It is engineered to match OE-style fitment and signal performance for accurate exhaust monitoring and dependable drivability.

Key Features

• Heated oxygen sensor for faster operating temperature and stable feedback
• Specific fit design for direct replacement on listed applications
• 4-wire configuration with male connector
• Threaded mounting with 0.708 in. thread diameter
• 18.50 in. wiring harness length for proper routing
• OE Style Denso replacement part number 234-8041

OE-Style Design and Performance

Denso’s OE Style line is built to the same standards used for original equipment service parts, with precision construction for exact replacement and first-time fit. This oxygen sensor uses an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting consistent engine management and long service life. For drivers searching for a 2003-2006 Toyota Matrix upstream oxygen sensor or a 2003-2006 Pontiac Vibe upstream oxygen sensor, Denso 234-8041 is a direct-fit option.

This part cross-references Bosch 15309 and NTK 24811 for the same application.

What This Oxygen Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio feedback to the engine control module
• Reduced fuel economy caused by a slow or inaccurate sensor
• Rough idle, hesitation, or poor throttle response tied to exhaust feedback issues
• Emissions test failures caused by a worn upstream sensor

Installation Notes and Fitment

Fits 2003-2006 Pontiac Vibe, upstream. Fits 2003-2006 Toyota Matrix, upstream. Confirm connector style, thread size, and harness routing before installation. This heated oxygen sensor uses a threaded mounting design and a 4-wire male connector, so the replacement should match the original sensor configuration on the vehicle.

Quality Assurance

Denso manufactures and tests this oxygen sensor to OE standards for dimensional accuracy and consistent operation. The OE Style construction is intended to deliver the right part and the right fit for the listed Toyota Matrix and Pontiac Vibe applications.