The 1-Series model uses a total of 4 O2 sensors. Two before the catalyst and two after the catalyst.Select O2 sensor location from the menu. Made by Bosch. Sold each.
Part# 11 78 7 545 074 Post Cat in Front Manifold. Cyl 1-3 (560mm length)
Part# 11 78 7 545 075 Post Cat in Rear Manifold. Cyl 4-6 (490mm length)
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All parts are covered by their respective manufacturer's warranties. Warranties are for 2 year or 24,000 miles, Oembimmerparts.com, LLC warrants that at the time of shipment the products sold will be free from defects in material and workmanship. For complete warranty & returns details Click Here
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