DENSO 234-4038 Oxygen Sensor Heated Direct Fit - 4-Wire

The DENSO 234-4038 is a premium 4-wire heated oxygen sensor engineered to meet strict OE standards for accurate air-fuel ratio monitoring and emissions control. This direct-fit sensor is precision-manufactured for exact replacement, ensuring a first-time fit on compatible vehicles without modifications.

Key Features:

• 4-wire heated design for faster sensor activation and improved cold-start performance
• 29.72-inch wire length for proper routing and connection
• Exclusive aluminum oxide trap layer protects the ceramic element from silicone and lead poisoning
• Direct-fit design ensures precise OE form, fit, and function
• Manufactured and tested to strict OE standards for reliable performance
• Precision-built components for accurate oxygen sensing and optimal engine management

This oxygen sensor helps maintain proper engine performance, fuel efficiency, and emissions compliance by continuously monitoring exhaust oxygen levels. The heated element design allows the sensor to reach operating temperature quickly, reducing emissions during cold starts. DENSO's advanced trap layer technology extends sensor life by protecting against common contaminants that degrade sensor performance over time.