Seller notes

4Pcs O2 Oxygen Sensor for BMW X3 X5 Z4 135I 335i 328I 528I Upstream Downstream Dear buyer : Please check the OE number and pics clearly, confirm suited to your needs. And make sure our product is same with your old one. Thank you very much. Description :1.Warranty: 2 years; Fully Tested2.Constructed from high quality material.3.Manufactured with precision to meet OE standards; Easy installation. OEM/Manufacturer Part Number: 234-5138，234-5139，234-4876，234-4892 Fitment:BMW 1 SERIES M L6-3.0...

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