Denso 234-4819 Oxygen Sensor - Upstream

Overview of Denso OE Style Oxygen Sensor 234-4819

The Denso OE Style Oxygen Sensor 234-4819 is designed for precise emission control in select Cadillac, Chevrolet, Pontiac, and Suzuki vehicles. This heated oxygen sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions compliance.

• Heated sensor type for faster response times
• Specific fit for Cadillac CTS, SRX, STS; Chevrolet Equinox; Pontiac Torrent; Suzuki XL-7
• Threaded mounting with 0.708 inch diameter
• Four-wire design with female connector
• Wiring harness length of 14.17 inches for proper installation

Detailed Features and Specifications

The Denso 234-4819 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving emission readings shortly after engine start. Its specific fitment ensures compatibility with various models including the Cadillac CTS, SRX, and STS, Chevrolet Equinox, Pontiac Torrent, and Suzuki XL-7. The sensor uses a threaded mounting type with a 0.708 inch thread diameter, providing secure installation. The four-wire configuration with a female connector supports reliable electrical connections, while the 14.17-inch wiring harness length accommodates factory routing requirements.

About the Denso OE Style Product Line

The OE Style line from Denso is engineered to meet original equipment specifications, offering a direct replacement solution for emission control sensors. This product line focuses on delivering components that match the fit, form, and function of the original parts installed by vehicle manufacturers. The 234-4819 oxygen sensor is part of this line, ensuring it meets the standards required for proper operation in the specified Cadillac, Chevrolet, Pontiac, and Suzuki models.

Common Applications and Problem Resolution

• Helps resolve engine performance issues related to incorrect air-fuel mixture
• Addresses check engine light triggers caused by faulty oxygen sensors
• Improves fuel efficiency by providing accurate oxygen level data
• Reduces harmful emissions by enabling proper catalytic converter function
• Prevents drivability problems such as rough idling or hesitation

Installation Notes and Tips

When installing the Denso 234-4819 oxygen sensor, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to prevent seizing. Verify the wiring harness length of 14.17 inches is sufficient for your vehicle’s routing path. Confirm the female connector securely mates with the vehicle’s wiring harness to avoid electrical issues. Follow all torque specifications to avoid damage during installation.

Quality Assurance and Warranty

Denso oxygen sensors, including the 234-4819, are manufactured to meet strict quality standards and original equipment specifications. This ensures reliable performance and durability under normal operating conditions. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship.