Denso 234-4251 Oxygen Sensor

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

• Bosch 15254
• Bosch 18023
• ACDelco 2134224
• ACDelco 2134264
• ACDelco 2134580
• ACDelco 2134648
• Delphi ES20088
• NTK 21064
• Delphi ES20383
• Walker Products 25024708
• Walker Products 35034620
• GMC 12598718
• GMC 12615904
• GMC 12618009
• GMC 12618010
• GMC 12618011
• ACDelco 2134224
• ACDelco 2134264
• ACDelco 2134580
• ACDelco 2134648
• Walker Products 25024708
• NAPA Mileage Plus 2344251

• 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.