At this time we offer 4 different Test Port Extenders. Each of them have a ⅛-27 NPT female thread pitch that allows our sensors to be installed into them. However, the male threads on these adapters will vary depending on which one you select. In order to determine if your vehicle requires a test port extender, we suggest measuring the thread pitch and the depth of your test port to ensure you are ordering the correct adapter. Our Test Port Extenders and other Transmission Gauge Adapters can be found here on our website.