Emissions & Sensors: Chevrolet various models GMC various models; oxygen sensor; super class

The Denso 234-4019 is an OE Identical oxygen sensor designed to meet or exceed original equipment specifications. It features a Zirconia sensor type, a threaded mounting type, and comes with a 15-inch wire length and an OE Type connector. This heated, 4-wire sensor is built with a stainless steel housing that resists corrosion and contamination.

The sensor's aluminum-oxide trap layer protects the ceramic from silicone and lead poisoning, safeguarding the platinum electrode. Its double protection cover ensures proper unit temperature for quicker response times and shields the ceramic element from contamination. A porous PTFE filter allows atmospheric oxygen entry while preventing water and contaminants from entering the casing.