Automotive Threaded Adapter
CNC Fabricated in USA
Material – Aluminum 6061-T6
Black Anodized – Type II
Laser Engraved with Thread Spec
Thread Type – National Pipe Thread (Tapered)
Internal Thread – 1/2-28
External Thread – 3/4 NPT
Fits Napa 4003 / WIX 24003
(Filter Not Included.)
Please Note: NPT stands for NATIONAL PIPE THREAD. NPT is a larger, tapered thread for pipe fittings and will not work with straight threads. Please make sure you are purchasing the correct adapter.
Also note: The threads on these are purposely truncated for durability. We make them to a class 3, military spec for repeated assembly/disassembly.