▲Interchange Part Number: 234-5134 x2 234-4473 x2 ▲Fitment: Only for M56 Engine ! ! ! Oxygen Sensor 234-5134 x2 234-4473 x2 fit for 2006-2003 BMW 325CI L6-2.5L o2 sensor, for 2005-2003 BMW 325I L6-2.5L oxygen sensor. ▲Easy Installation. It could correctly replace the original parts. ▲Fitment Info In The Product description. Please confirm the model, displacement and year of your car before purchasing to avoid the extra losses. ▲Tip: Bank 1 Sensor 1=Upstream Right/Rear; Bank 2 Sensor 1=Upstream Left/Front; Bank 1 Sensor 2=Downstream Right/Rear; Bank 2 Sensor 2=Downstream Left/Front; sensor 1=Upstream, sensor 2=Downstream.

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2006-2003 BMW 325CI L6-2.5L M56 Engine

2005-2003 BMW 325I L6-2.5L M56 Engine