Denso 234-4543 Oxygen Sensor - Downstream Front

Overview of the Denso OE Style Oxygen Sensor 234-4543

The Denso OE Style Oxygen Sensor 234-4543 is designed specifically for Acura TL models, providing precise emissions control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a 14.37-inch wiring harness length for accurate fitment and reliable operation.

• Heated oxygen sensor for faster response times
• Specific fitment for Acura TL vehicles
• Threaded mounting type with 0.708-inch thread diameter
• Four-wire design with female connector
• 14.37-inch wiring harness length for proper installation

Detailed Product Description

The Denso OE Style 234-4543 oxygen sensor is engineered to meet the exact specifications of Acura TL models, ensuring compatibility and optimal performance. This sensor uses a heated element to quickly reach operating temperature, improving fuel efficiency and reducing emissions. The four-wire configuration supports both the sensor signal and heater circuit, while the female connector and threaded mounting type simplify installation. With a thread diameter of 0.708 inches, this sensor securely fits into the exhaust system, maintaining a proper seal and accurate readings.

The OE Style product line from Denso focuses on delivering original equipment quality and fitment, making it a reliable replacement part for emission control sensors. This line is designed to match the performance and durability of factory-installed components, providing a direct fit without modification.

Applications and Common Issues Addressed

• Restores accurate oxygen level readings for proper air-fuel mixture
• Helps resolve rough idling and engine hesitation
• Reduces increased emissions and failed emissions tests
• Improves fuel economy by optimizing combustion
• Prevents check engine light related to oxygen sensor faults

Installation Notes and Tips

When installing the Denso OE Style 234-4543 oxygen sensor on an Acura TL, ensure the sensor is threaded in by hand initially to avoid cross-threading. The 14.37-inch wiring harness length provides sufficient reach to the vehicle’s connector, which is female in design. It is recommended to use anti-seize compound on the threads if not pre-applied, and to torque the sensor to manufacturer specifications for a secure fit.

Quality Assurance and Warranty

Denso manufactures the OE Style oxygen sensor to meet strict quality standards, ensuring durability and reliable performance in emission control systems. While specific warranty details are not provided here, Denso parts typically come with a limited warranty covering defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.