PARKER Hydraulic Quick Connect Hose Coupling: 1/4 in Coupling Size, Brass
The PARKER Moldmate Series Hydraulic Quick-Connect Coupling Plug (MPN PN251-40) is a brass-bodied coupling with a 1/4 in coupling size, 1/8"-27 thread size, and a maximum flow rate of 11.36 lpm. 3G Electric…
SKU 3G-OTH-481193
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Product Description
The PARKER Moldmate Series Hydraulic Quick-Connect Coupling Plug (MPN PN251-40) is a brass-bodied coupling with a 1/4 in coupling size, 1/8"-27 thread size, and a maximum flow rate of 11.36 lpm. 3G Electric interprets your demand for this genuine PARKER component, sourcing it across our 14 industrial departments with specialist depth in pumps and controls.
Frequently Asked Questions
What is the PARKER Moldmate Series hydraulic quick-connect coupling plug used for?
The PARKER Moldmate Series plug (PN251-40) is used in hydraulic systems for quick, leak-free connection and disconnection of fluid lines. Common in injection molding, die casting, and industrial machinery, it enables fast tool changes and reduces fluid loss during maintenance.
What are the specifications of the PARKER PN251-40 coupling plug?
The PARKER PN251-40 is a brass-bodied quick-connect coupling plug with a 1/4 in coupling size, 1/8"-27 thread size, and a maximum flow rate of 11.36 lpm. It is part of the Moldmate Series, designed for hydraulic applications requiring reliable sealing and durability.
Where to buy PARKER hydraulic quick-connect couplings worldwide?
3G Electric supplies genuine PARKER Moldmate Series couplings worldwide. We interpret your demand, source the correct part, and handle logistics, customs, and delivery to your location. Contact us for availability and lead time on the PN251-40 or other PARKER hydraulic components.
How to install a PARKER Moldmate quick-connect coupling plug?
To install the PARKER Moldmate plug, ensure the mating coupler is clean and undamaged. Apply thread sealant to the 1/8"-27 male threads, then tighten to the recommended torque. Push the plug into the coupler until it locks. Always depressurize the system before connection or disconnection.
Used in
Common applications for PARKERPARKER Products
3G Electric supplies PARKER moldmate series hydraulic quick-connect coupling plugs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









