1900970M1 Hydraulic Double Breakaway Clamp 4000 4200 5000 6600 8200 SeriesOne New Aftermarket Replacement Universal Double Breakaway Clamp for several Dust Plugs & Caps, and for Quick Coupler models: 4000 Series, 4200 Series, 5000 Series, 6600 Series, 8200 Series Double Break away Clamp with Heavy Duty Metal Stamping Yoke Dim A (1) For Couplers with 1 1 2" Sleeves Clamp is specially designed for one hand disconnection of the coupling with full pressure on both halves. Just push in sharply and then remove the male tip