Denso 234-4273 Oxygen Sensor - Downstream Rear

Overview of the Denso OE Style Oxygen Sensor 234-4273

The Denso OE Style Oxygen Sensor 234-4273 is designed specifically for Nissan Altima models, providing precise emissions control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a 14.57-inch wiring harness length for a direct fit installation.

• Heated oxygen sensor for accurate exhaust gas measurement
• Specific fit for Nissan Altima vehicles
• Threaded mounting type with 0.708-inch thread diameter
• Four-wire design with male connector for secure connection
• 14.57-inch wiring harness length for optimal routing

Detailed Product Description

The Denso 234-4273 oxygen sensor is engineered to meet the exact specifications of Nissan Altima models, ensuring compatibility and reliable performance. This heated sensor type allows for faster warm-up times, improving fuel efficiency and reducing emissions. The sensor’s four-wire configuration includes a male connector, facilitating a secure and stable electrical connection. With a threaded mounting type and a 0.708-inch thread diameter, installation is straightforward and aligns with OEM standards. The 14.57-inch wiring harness length provides sufficient reach for proper placement within the vehicle’s exhaust system.

This oxygen sensor is part of Denso’s OE Style product line, which focuses on delivering components that match original equipment specifications. The OE Style line is designed to provide a balance of quality and fitment accuracy, making it suitable for direct replacement applications without modification.

Common Applications and Issues Addressed

• Restores accurate oxygen level readings for optimal engine control
• Helps resolve rough idling and poor fuel economy
• Reduces emissions by ensuring proper air-fuel mixture
• Eliminates check engine light codes related to oxygen sensor faults
• Improves overall engine performance and responsiveness

Installation Notes and Tips

• Ensure the vehicle is cool before beginning installation to avoid burns
• Use appropriate tools to avoid damaging the threaded sensor or connector
• Verify the wiring harness length and connector gender match the vehicle’s harness
• Apply anti-seize compound on the threads if recommended by the manufacturer
• Clear any diagnostic trouble codes after installation to reset the system

Quality Assurance and Warranty

Denso’s OE Style oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship. Using a sensor designed for Nissan Altima models helps maintain factory-level emissions control and engine management system integrity.