• Designed to detect the amount of oxygen in the exhaust system , thread diameter - 18 mm
• Constructed from high quality material
• Features double protection layer, aluminum oxide trap layer, PTFE filter and stainless steel housing
• Manufactured with precision to meet OE standards
• Easy installation

Open Box. Item appears to be in unused, excellent condition. Unable to test. See images for item condition. Everything included with this item can be seen in the images.