Denso 234-4446 Oxygen Sensor

Buyer fitment guide only intended as reference. Please use catalogue search by vehicle to ensure proper fitment.

• Subaru 22690AA501
• Subaru 22690AA53B
• Subaru 22690AA69A
• Delphi ES20219
• Bosch 15025
• Bosch 15031
• ACDelco 2132951
• NTK 24642
• Subaru 22690AA500
• Walker Products 25024440
• Standard Ignition SG1083
• Walker Products 35034322
• Standard Ignition SG2024
• ACDelco 2132951
• Walker Products 25024440
• NAPA Mileage Plus 2344446

• DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
• Aluminum-Oxide Trap Layer €“ Keeps silicone and lead outside the ceramic elient through DENSO€™s exclusive design, preventing damage to the platinum electrode.
• Double Protection Cover €“ Maintains proper unit temperature for quicker response times and protects the ceramic element against silicone and lead poisoning.
• Porous PTFE Filter €“ Allows atmospheric oxygen to enter the sensor without permitting water or engine contaminants to seep into the casing.
• Robotic Laser Weld
• Stainless Steel Housing €“ Resists corrosion and contamination with a rugged, watertight body.