DENSO 234-5756 Air/Fuel Ratio Sensor Direct Fit Wide-Band O2 Sensor

The DENSO 234-5756 Air/Fuel Ratio Sensor is a direct-fit, wide-band oxygen sensor engineered to OE specifications for precise monitoring of your engine's air-to-fuel mixture. As a leading original equipment supplier, DENSO manufactures this sensor to the same exacting standards used on the factory assembly line, ensuring reliable, long-term performance.

Key Features:

• Direct Fit Design – Plug-and-play replacement requiring no vehicle modifications for a first-time fit
• Wide-Band Sensing Technology – Measures air/fuel ratios across a broader range than conventional O2 sensors, enabling more accurate engine management
• Tarnish-Proof Platinum Electrode – Provides extended service life and sustained measurement accuracy
• Quick-Response Planar Zirconia Element – Rapidly detects oxygen concentration changes for real-time ECU feedback
• Heated Construction – Reaches optimal operating temperature faster, supporting closed-loop fuel control sooner after cold starts
• Stainless Steel Housing – Resists corrosion and contamination with a rugged, watertight body
• Double Protection Cover – Maintains proper unit temperature for quicker response and shields the ceramic element against silicone and lead contamination
• Aluminum-Oxide Trap Layer – Prevents silicone and lead from reaching the platinum electrode, prolonging sensor life
• Manufactured and tested to strict OE standards for unparalleled performance

Also commonly referred to as a wideband O2 sensor, lambda sensor, or A/F sensor, the DENSO 234-5756 helps your engine management system optimize fuel delivery, reduce harmful emissions, and maximize catalytic converter efficiency. DENSO's First Time Fit® program ensures this is the correct, application-specific part for a hassle-free installation.