Denso 234-4149 Oxygen Sensor - Downstream or Downstream Left

Overview of the Denso OE Style Oxygen Sensor 234-4149

The Denso OE Style Oxygen Sensor 234-4149 is designed specifically for select Lexus, Scion, and Toyota models. This heated oxygen sensor features a 10.24-inch wiring harness and a threaded mounting type, ensuring precise fitment and reliable performance in emission control systems.

• Heated oxygen sensor for faster response times
• Specific fit for Lexus, Scion, and Toyota vehicles
• 10.24-inch wiring harness length for optimal installation
• Threaded mounting with 0.708-inch thread diameter
• Four-wire design with male connector for secure connection

Detailed Features and Specifications

The Denso 234-4149 oxygen sensor is part of the OE Style product line, which focuses on delivering original equipment quality and fitment. This sensor is engineered to match the exact specifications of the original part, providing a direct replacement for models such as the Toyota Camry, Highlander, Sienna, Solara, and tC, as well as Lexus LS460, RX350, and RX400h. The heated sensor type allows for quicker activation and improved emissions monitoring, while the 10.24-inch wiring harness length offers flexibility during installation. The sensor’s four-wire configuration and male connector ensure compatibility with the vehicle’s existing wiring harness. The threaded mounting type with a 0.708-inch diameter provides a secure and leak-free fit.

Compatible Vehicles and Applications

• Designed for Lexus LS460, RX350, RX400h models
• Compatible with Toyota Camry, Highlander, Sienna, Solara, and tC
• Also fits select Scion models
• Used in emission control systems to monitor oxygen levels
• Helps maintain optimal air-fuel mixture for engine efficiency

Installation Notes and Tips

• Ensure vehicle compatibility by verifying make and model before installation
• Use proper tools to avoid damaging the threaded mounting
• Check wiring harness length (10.24 inches) for routing clearance
• Confirm connector gender matches vehicle harness (male connector)
• Follow manufacturer torque specifications for sensor installation

Quality Assurance and Warranty

The Denso OE Style oxygen sensor 234-4149 is manufactured to meet strict OEM standards for durability and performance. This part undergoes rigorous testing to ensure reliable operation within emission control systems. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship.