Not all oxygen sensors are created equal. NGK/NTK is the world?ÇÖs largest supplier and manufacturer of original equipment oxygen sensors. This means you?ÇÖre going to get the best sensor with the correct number of wires, at the right length and with the correct plug for your vehicle. In short, because NTK is the largest supplier of OE sensors, you ensure a faster, hassle-free replacement which will help return your vehicle to its ultimate mileage and performance, like when it was new.