A1587 Fisher Pin Style Coupler Plow Pump Hydraulic Coupling Quick Disconnect

These are the factory Fisher high quality pin couplers. These are used on the under hood units as well as the Conventional plows. The part # is 1587. These are stamped with Fisher 9964-2 and 9964-3.

There are many cheap couplers out there and they cause a lot of problems. We learned the hard way many years ago not to use the cheap ones. The OEM ones like this are not cheap but they are worth the money to not have the hassle. 

These are the better pin couplers and tend to be a lot better than the ball style couplers as far as leaking issues. 

They are 1/4 pipe thread and can be used on just about any brand plow.