234-1012 - Denso OE Identical O2 sensor, 1 Wire

A car's oxygen sensor is constantly exposed to damaging contaminants that can affect its ability to create efficient readings. Engine lubricants, sealants and additives, silicone, and oil can damage a sensor's element.

DENSO oxygen sensors are specifically designed to meet the increasing demands of today's engines. Each of our oxygen sensors is constructed of the highest quality materials available. High-quality stainless steel, porous polytetrafluoroethylene (PTFE), fluorine rubber, aluminum oxide, high-grade platinum and ceramics are used in each DENSO sensor.

DENSO First Time Fit® oxygen sensors are coated with a formulation of aluminum oxide to trap impurities outside of the ceramic element. In testing against the leading competitors, DENSO oxygen sensors were rated two times more resistant to silicone and lead poisoning.

DENSO produces the finest oxygen sensors in the world. In many cases, DENSO designed, tested, and manufactured the OE unit.

• SUPERIOR DESIGN - Maximizes engine performance and fuel efficiency while reducing harmful emissions.
• DOUBLE-PROTECTION COVER - Maintains proper temperature for quicker response times and protects the ceramic element against silicone and lead poisoning.
• ALUMINUM-OXIDE TRAP LAYER - Keeps silicone and lead outside the ceramic element through DENSO's exclusive design, preventing damage to the platinum electrode.
• STAINLESS STEEL HOUSING - Resists corrosion and contamination with a rugged, watertight body.
• POROUS PTFE FILTER - Allows atmospheric oxygen to enter the sensor without permitting water or engine contaminants to seep into the casing.