Seller notes

Fits for: For 2007-2013 Nissan Altima 2.5L Specification: OE：234-4190, 234-9036 Features: *Function 1. The front oxygen sensor is to detect the air-fuel ratio of the engine in different working conditions. 2. The rear oxygen sensor is mainly to detect whether the three-way catalytic converter works normally. * 100% test before shipment. * The reduction of harmful emissions. * The increasing of fuel economy. * The improvement of engine performance. * Prevent premature failure of the catalytic c...

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