Oxygen Sensor for MERCURY MARINER V6-3.0 2011-2010 MILAN V6-3.0 2011

Set of 4 Upstream Downstream Oxygen Sensor For Ford Explorer 2013 3.5L non Turbo Product Description 1.Part Number: 234-5038, 234-4490, 234-4491 Package Included: 4PCS oxygen sensor, Upstream 234-5038 x2, Downstream 234-4390 x1, 234-4391 x1 234-4491(4 wire-Oxygen Sensor): Downstream Front 1 pcs 234-4490(4 wire-Oxygen Sensor): Downstream Rear 1 pcs 234-5038(5 wire-Air Fuel Ratio Sensor): Upstream Front 1 pcs 234-5038(5 wire-Air Fuel Ratio Sensor): Upstream Rear 1 pcs 234-5038 compatible part number: 9E5Z-9F472-D, BL3Z-9F472-A, BL3Z-9G472-A, CA38-18-8G1, ZZDL-18-861, OS5578, DY1178 234-4490 compatible part number: BE5Z-9G444-A, BE5Z-9G444-B, BE5Z-9G444-C, BL8Z-9G444-A, BR3Z-9G444-A, CK4Z-9G444-C, OS5568 234-4491 compatible part number: BA5Z-9G444-A Package:4x Oxygen Sensors（2x Upstream & 2x Downstream） Fitment： 2013 Ford Explorer 3.5L V6 Non-Turbo