Kwiksen O2 Oxygen Sensor 15525 Downstream For Nissan Maxima 3.5L Sentra 2.5L Direct Plug-In Replacement Cross Reference Part Number: 15525, 234-4301 Position: Please check compatibility in Description Warranty: One Year Unlimited Miles This is Brand New High Quality Aftermarket Product. Meet the professional specification as OEM parts, for stable performance durable service.