Denso 234-4339 Oxygen Sensor

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

• Bosch 15136
• Delphi ES20000
• Isuzu 8126049130
• Bosch 15128
• ACDelco 2133839
• ACDelco 2133536
• ACDelco 2133545
• NTK 21558
• Saab 12590749
• Saab 12604913
• Walker Products 25024704
• Walker Products 35034484
• GMC 12590749
• GMC 12597990
• GMC 12604913
• GMC 8125907490
• Standard Ignition SG1628
• ACDelco 2133536
• ACDelco 2133545
• ACDelco 2133839
• Walker Products 25024704
• NAPA Mileage Plus 2344339

• 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.