A New 90° Swivel Style Street Elbow - Western 56539K AKA Fisher 20316K. This is a 9/16" male oring fitting where it meets the pump or cylinder and 1/4" pipe thread where it meets the hose.
This is used during the transition of the older pipe thread plows to the later 9/16 oring plows.
This is used on a number of different plows.
For a similar fitting take a look at 56723.
Do not use thread tape. It can get into the pump. Use a liquid thread sealer. No sealer is needed on the Oring end.
