DENSO 063396-4381 Oxygen Sensor Heated Direct Fit - 234-4381 4-Wire

The DENSO 234-4381 is a heated 4-wire oxygen sensor with a 10.71-inch wiring harness length, engineered for direct-fit replacement. Oxygen sensors monitor the air/fuel mixture under idle, moderate acceleration, and cruise conditions, providing critical data to your vehicle's engine control module for optimal performance and emissions control.

Key Features:

• Exclusive aluminum oxide trap layer shields the ceramic element from silicone and lead poisoning, extending sensor longevity
• Robotic laser welds and porous PTFE filters block efficiency-robbing contaminants
• Double-protection covers maintain proper temperature for quicker response times and protect ceramic elements
• Rugged, watertight stainless steel housing resists corrosion and contamination
• Male connector with 0.708-inch thread diameter for secure mounting
• Manufactured to strict OE standards within incredibly close tolerances for First Time Fit

This sensor replaces OEM part numbers including Nissan 22690ED000 and 226A0EN21A, as well as aftermarket equivalents from NTK (24449), Bosch (15384), Delphi (ES11074), and Walker Products (250-24771, 350-34273). Superior design maximizes engine performance while reducing fuel consumption and harmful emissions.