Denso 234-4316 Oxygen Sensor - Upstream

Denso OE Style Oxygen Sensor 234-4316

Denso 234-4316 is an OE-style heated oxygen sensor built for direct replacement on select Mitsubishi applications. It is engineered for a specific fit and uses a threaded mounting design with a 4-wire male connector for straightforward service on the correct vehicle.

For drivers searching for a 2006-2012 Mitsubishi Eclipse upstream oxygen sensor or a 2004-2012 Mitsubishi Galant upstream oxygen sensor, this Denso part number 234-4316 matches the listed OE-style application and connector layout.

Key Features

• Heated oxygen sensor for upstream exhaust monitoring
• Specific-fit design for the listed Mitsubishi applications
• 4-wire configuration with male connector
• Threaded mounting type for OE-style installation
• Wiring harness length: 12.99
• Thread diameter: 0.708
• Built to Denso OE standards for exact replacement fit
• Aluminum oxide trap layer helps protect the ceramic element from silicone and lead contamination

Product Details

Denso OE Style oxygen sensors are manufactured and tested to OE-level standards for accurate replacement fit and dependable operation. Part number 234-4316 is a heated upstream sensor designed for select Mitsubishi Eclipse and Mitsubishi Galant models, with the correct connector, wire count, and threaded mounting style to match the original configuration. This part cross-references Bosch (e.g., 15187, 15613) for the same application.

By maintaining proper exhaust feedback, the sensor supports engine management on the Mitsubishi Eclipse and Mitsubishi Galant platforms listed below. The OE-style construction and contamination-resistant trap layer are intended to preserve sensor response and service life in demanding exhaust conditions.

Vehicle Fitment

• Fits 2006-2012 Mitsubishi Eclipse, Upstream, Cylinder 1,2; OE Style
• Fits 2004-2012 Mitsubishi Galant, Upstream, Cylinder 3,4; OE Style

Common Issues This Part May Address

• Check engine light related to upstream oxygen sensor performance
• Incorrect air-fuel feedback from a worn heated O2 sensor
• Rough idle or drivability concerns tied to exhaust sensor signal loss
• Reduced fuel economy caused by inaccurate oxygen sensor readings
• Failed emissions testing due to a faulty upstream sensor

Installation Notes

Confirm the connector style, wire count, thread diameter, and upstream location before installation. This Denso 234-4316 is a specific-fit sensor for the listed Mitsubishi Eclipse and Mitsubishi Galant applications, so matching the exact engine position and cylinder note is important for correct service. Inspect the harness routing and exhaust threads before tightening the sensor into place.

Quality Assurance

Denso manufactures this OE Style oxygen sensor to strict original-equipment standards and tests each component for replacement accuracy and first-time fit. The design includes a protective aluminum oxide trap layer to help shield the sensing element from contamination and support long-term performance.