13/16-16 to 3/4 NPT thread adapters! Have multiple 13/16-16 adapters that you want to convert to the NAPA 4003 / Wix 24003 without paying full price for multiple new NPT adapters? Pick up one of these today to convert those standard oil filter threads to those of a fuel filter! Enjoy!
Inner Thread: 13/16-16
Outer Thread: 3/4 NPT (National Pipe Thread)
Material: Black Oxidized Steel