Air/Fuel Ratio Sensor

The Denso 234-9126 is an OE Identical Air/Fuel Ratio (AFR) sensor, engineered to deliver a precise output that directly corresponds to your vehicle's air-fuel ratio. This advanced sensing element provides the Engine Control Unit (ECU) with accurate AFR feedback, leading to tangible benefits such as enhanced engine performance, decreased exhaust emissions, and improved fuel economy. Constructed with durability and longevity in mind, the Denso 234-9126 features a robust stainless steel housing that resists corrosion and contamination. Its internal design includes a specialized aluminum-oxide trap layer, safeguarding the platinum electrode from silicone and lead poisoning. A unique double protection cover ensures the sensor maintains the correct operating temperature for rapid response times while shielding the ceramic element from environmental contaminants. Additionally, a porous PTFE filter allows for atmospheric oxygen intake without compromising the sensor's internal integrity against water and other engine contaminants. Key product specifications include a threaded mounting type, a Zirconia material, and a heated design for optimal performance. It is a 4-wire sensor with a wire length of 279mm (11 inches) and a thread diameter of M18 (.711 inches). The sensor type is a thimble design, and it comes with OE Type connector and a 12-month warranty.