General Purpose Hydraulic Quick Couplers | Parker 6600 Series

Parker 6600 Series Couplers Key Features

  • Poppet valves are mated with a solid metal perch that maintains valve alignment and prevents flow checking.
  • Both the coupler's sleeve and the nipple's body are hardened to make the 6600 Series couplings resistant to damage from brinelling and mechanical shock.
  • The durable-ball-locking mechanism ensures a reliable connection every time.
  • 6600 Series couplings have female pipe and straight thread end configurations as standard.
  • Parker 6600 Series couplings interchange with couplings meeting ISO 7241-1, Series A.

6600 Series Couplings Specifications

6600 Series Couplers 6600 Series Nipples



Parker 6600 Series couplings are very versatile and are used in a wide range of hydraulic applications including construction equipment, manufacturing machinery, and in-plant systems. They can be found anywhere the fluid transfer lines need to be connected and disconnected for operation or maintenance of equipment.

Rugged construction makes the Parker 6600 Series couplings a good choice for mobile applications including dump trucks, snow plows, refuse hauling, mining, asphalt paving, truck trailer connections and many more.

In-plant machinery applications include hydraulic fluid, chemicals and gas lines for paper mills, steel production, and many varieties of plant maintenance and production equipment.

More Quick Couplers and Related Products

6600 Series Couplers 6600 Series Nipples Dust Plugs & Caps More Hydraulic QCs  Other Quick Couplers
(Hydraulic & Pneumatic)

Warning Triangle WARNING: These products can expose you to chemicals including lead and/or DEHP and/or carbon black, which are known to the State of California to cause cancer or birth defects or other reproductive harm.  For more information go to