NGK Toyota Highlander 2006-2004 Direct Fit Oxygen Sensor

If you're working on your 2004-2006 Toyota Highlander and need to replace an oxygen sensor, this direct-fit unit from NGK is a solid option. Oxygen sensors are a key part of your vehicle's diagnostic system, constantly sending information to the engine computer about the air-fuel mixture. This feedback helps keep your engine running smoothly, maximizes your gas mileage, and keeps harmful emissions in check. When a sensor starts to fail, your car's computer can detect issues with fuel delivery or the catalytic converter.

NGK, a major supplier of original equipment sensors, builds these units with an advanced ceramic sensor element. This element has a special coating designed to resist contamination and protect against poisoning, which can happen over time from exhaust byproducts. This focus on the ceramic element, from raw material to the finished product, is something NGK has refined over years of development with OEM manufacturers.