Denso 234-4256 Oxygen Sensor - Downstream or Downstream Right

Overview of the Denso OE Style Oxygen Sensor 234-4256

The Denso OE Style Oxygen Sensor 234-4256 is designed specifically for select Cadillac, Chevrolet, and GMC models. This heated oxygen sensor features a 14.80-inch wiring harness and a threaded mounting type, ensuring precise fitment and reliable performance in emission control systems.

• Heated oxygen sensor for accurate emissions monitoring
• Specific fit for Cadillac, Chevrolet, and GMC vehicles
• 14.80-inch wiring harness length for optimal installation
• Threaded mounting with 0.708-inch thread diameter
• Four-wire design with female connector for secure connection

Detailed Product Features and Specifications

The Denso 234-4256 oxygen sensor is a heated sensor type, which allows it to reach operating temperature quickly for improved emissions control. It includes a 14.80-inch wiring harness, providing sufficient length for installation in various engine compartments. The sensor uses a threaded mounting type with a 0.708-inch thread diameter, ensuring a secure and precise fit. Featuring a four-wire configuration and a female connector, this sensor is engineered for specific vehicle applications, not universal fitment.

This oxygen sensor is part of Denso's OE Style product line, which focuses on delivering original equipment quality and fitment. The OE Style line is designed to meet or exceed factory specifications, making it suitable for replacement in vehicles requiring exact sensor compatibility.

Compatible Vehicles and Applications

This oxygen sensor is compatible with a range of Cadillac, Chevrolet, and GMC models, including:

• Cadillac Escalade, Escalade ESV, Escalade EXT
• Chevrolet Avalanche, Camaro, Caprice, Corvette, Silverado 1500, Silverado 2500 HD, Silverado 3500 HD, Suburban 1500, Suburban 2500, Tahoe
• GMC Sierra 1500, Sierra 2500 HD, Sierra 3500 HD, Yukon, Yukon XL 1500, Yukon XL 2500, SS

Common Issues Addressed by the Denso 234-4256 Oxygen Sensor

• Incorrect air-fuel mixture readings causing poor engine performance
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor malfunction
• Reduced fuel efficiency from inaccurate oxygen level detection
• Failed emissions tests related to sensor degradation

Installation Notes and Tips

• Ensure the vehicle is cool before sensor removal to avoid burns
• Use appropriate oxygen sensor socket for removal and installation
• Verify connector type matches the vehicle harness (female connector)
• Apply anti-seize compound on threads if not pre-coated
• Torque sensor to manufacturer specifications to prevent leaks

Quality Assurance and Warranty Information

Denso OE Style oxygen sensors are manufactured to meet original equipment standards, ensuring reliable performance and durability. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product documentation or supplier for exact warranty terms.