Oxygen Sensor Test Pipe Extension Extender Adapter Spacer M18 X 1.5 Bung 50mmSpecifics:Material: Stainless steelCondition: 100% Brand NewType: Oxygen Sensor AdapterFitment Type: Direct ReplacementQuantity: 1pcsManufacturer Part Number: Extender Adapter SpacerThread: M18x 1.5mmFitment For:For all standard size sensors with a 1/2 Inch diameter tip.The size of the extenders is M18 X 1.5Package Included:1x Oxygen Sensor Adapter