Denso 234-4931 Oxygen Sensor - Downstream Left or Downstream Right

Reliable Oxygen Sensor for Lexus and Toyota Vehicles

The Denso OE Style 234-4931 oxygen sensor is designed specifically for select Lexus and Toyota models, including the 4Runner, FJ Cruiser, Land Cruiser, and LX570. This heated oxygen sensor ensures accurate emissions control and optimal engine performance.

• Heated sensor type for faster response times
• Specific fit for Lexus and Toyota 4Runner, FJ Cruiser, Land Cruiser, and LX570
• Threaded mounting type with 0.708-inch thread diameter
• 9.49-inch wiring harness length with 4 wires and male connector
• Part number 234-4931 for precise replacement

About the Denso OE Style Product Line

The OE Style line from Denso offers oxygen sensors engineered to meet original equipment specifications. This ensures compatibility and reliable performance for emission control systems. The 234-4931 sensor maintains factory standards for fit, form, and function, making it a suitable replacement for specific Lexus and Toyota models.

Product Details and Specifications

This oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 9.49-inch wiring harness length provides adequate reach for installation in the specified vehicles. With a male connector and four wires, it integrates seamlessly with the vehicle’s existing wiring harness. The threaded mounting type with a 0.708-inch diameter ensures secure installation in the exhaust system.

Common Applications and Issues Addressed

• Restores accurate oxygen level readings for engine control units
• Helps resolve rough idling and poor fuel economy
• Reduces emissions-related check engine light triggers
• Improves catalytic converter efficiency
• Prevents drivability issues related to faulty sensors

Installation Notes and Tips

When installing the Denso 234-4931 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Verify the connector gender matches the vehicle harness for a secure connection. Thread the sensor carefully to prevent cross-threading and torque to manufacturer specifications.

Quality Assurance and Warranty

Denso oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. The OE Style 234-4931 sensor is backed by Denso’s quality assurance protocols. Please refer to Denso’s warranty terms for specific coverage details.