Denso 234-4087 Oxygen Sensor

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

• Delphi ES20002
• Bosch 13444
• ACDelco 2131681
• ACDelco AFS116
• ACDelco AFS123
• ACDelco AFS141
• ACDelco AFS97
• NTK 21528
• Borg Warner OS825
• ACDelco 2132873
• GMC 12578459
• GMC 19178747
• GMC 19178922
• GMC 19178924
• GMC 25318321
• GMC 8253122070
• Isuzu 19178924
• Walker Products 25024340
• Walker Products 35034076
• Standard Ignition SG277
• ACDelco 2131681
• Walker Products 25024340
• NAPA Mileage Plus 2344087

• 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.