Denso 234-4037 Oxygen Sensor

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

• ACDelco 2131275
• ACDelco 2131365
• ACDelco 2131368
• Delphi ES10718
• Bosch 13850
• Mazda KLL618861C
• Ford F7BZ9F472BA
• Delphi ES20040
• Bosch 13756
• Bosch 15675
• Mazda JE461886Z9U
• NTK 22095
• Borg Warner OS1005
• Walker Products 25024072
• NTK 22126
• NTK 24029
• Borg Warner OS221
• Borg Warner OS683
• Motorcraft DY781
• Motorcraft DY813
• Ford F6BZ9F472AA
• Mazda JE461886Z
• Walker Products 25024160
• Walker Products 35034153
• Walker Products 35034590
• Standard Ignition SG1033
• Standard Ignition SG146
• Standard Ignition SG660
• ACDelco 2131275
• ACDelco 2131365
• ACDelco 2131368
• Walker Products 25024160
• NAPA Mileage Plus 2344037

• 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.