Oxygen O2 Sensor Fit for Chevy Trailblazer 234-4119 2Pcs Upstream

Key features

• Compatible Car Model and Year2 Packs Upstream & Downstream Oxygen Sensor Compatible With Buick Rainier 4.2L 2004–2005; Compatible With Chevrolet Colorado 2.8L/3.5L 2004–2005, Trailblazer/Trailblazer EXT 4.2L 2004–2005; Compatible With GMC Canyon 2.8L/3.5L 2004–2005, Envoy/Envoy XL/Envoy XUV 4.2L 2004–2005; Compatible With Isuzu Ascender 4.2L 2004–2005; Compatible With Oldsmobile Bravada 4.2L 2004; Compatible With Saab 9-7X 4.2L 2005. This 2-piece kit covers one upstream and one downstream sensor for full replacement.
• Replace OE NumberFront Upstream O2 Sensor Replacement OEM Cross Reference Numbers: 234-4119, 12573721, 12586996, 8125869960; Rear Downstream O2 Sensor Replacement OEM Cross Reference Numbers: 234-4285, 12578624, 12581346, 12590750, 19209805, 2344405, 2344406, 24577303, 8125786240, 8125907500, 8192098050, 8245773030. Fully meets original factory technical specifications.
• Accurate and DurabilityThis oxygen sensor adopts premium platinum sensing chip, heat-resistant ceramic core and 310S stainless steel housing. High temperature and exhaust corrosion resistant, delivers stable precise oxygen signal to ECU, improves fuel efficiency and extends catalytic converter service life.
• Fast Acting HeaterBuilt-in fast-response heating element, the sensor reaches working temperature within seconds. Real-time monitors air-fuel ratio, stabilizes idle speed, reduces exhaust emissions and eliminates engine surge and rough acceleration issues.
• Direct ReplacementComes with OE-matching connectors, complete wiring harness and pre-coated anti-seize threads out of the box. Plug-and-play installation without wire cutting or vehicle modification, easy DIY replacement for all repair skill levels.

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