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Westward

Westward 5NUE7 4-Jaw Hydraulic Coupler Ball Check 6000 PSI Pack of 5

SKU CH-9S1Y-DMQAR

Pack of five 4-jaw hydraulic couplers with ball check rated to 6000 PSI for hand-operated grease guns

  • White zinc plating resists corrosion for longer service life
  • Four-jaw design grips fittings securely during high-pressure greasing
  • Ball check valve prevents back-flow and keeps lines clean
  • Rated to 6000 PSI for demanding hydraulic applications
  • Pack of five couplers readies multiple guns or stations

4-Jaw Hydraulic Coupler

The Westward 5NUE7 is a 4-jaw hydraulic coupler designed for hand-operated grease guns. It connects to standard fittings to deliver lubricant in automotive and machinery maintenance tasks. The ball check valve prevents backflow and keeps the connection clean during use. This pack of five suits workshops that need multiple couplers on hand.

White Zinc Plated Steel Construction

The coupler body is made from steel with a white zinc plated finish for corrosion resistance. Nitrile rubber seals handle the hydraulic fluid and operating pressure of 6000 PSI. The materials are selected to withstand normal workshop temperatures and repeated connection cycles. No special cooling or noise considerations apply to this hand-tool accessory.

Fits Hand-Operated Grease Guns

The coupler threads onto the hose or wand of a hand-operated grease gun without adapters. Its 4-jaw design grips standard hydraulic fittings securely while the ball check retains pressure when disconnected. It frees the operator from holding the fitting in place during greasing. Buyers who need higher flow rates or power-tool compatibility should look elsewhere.

Highlights

  • White zinc plating resists corrosion for longer service life
  • Four-jaw design grips fittings securely during high-pressure greasing
  • Ball check valve prevents back-flow and keeps lines clean
  • Rated to 6000 PSI for demanding hydraulic applications
  • Pack of five couplers readies multiple guns or stations

Specifications

BrandWESTWARD

Questions about this item

How do I install the 4-jaw hydraulic coupler on my hand-operated grease gun, and what step is often missed?

Thread the coupler onto the gun outlet until the steel jaws seat firmly; the step often missed is verifying the ball check moves freely before pressurising to 6000 PSI.

What maintenance or replacement will the coupler need over time?

The nitrile rubber seals and ball check will wear; replace the coupler when grease leaks past the jaws or the ball no longer seals under pressure.

What is the first limit reached during sustained high-pressure use?

The 6000 PSI operating pressure rating is the primary limit; exceeding it risks seal failure and coupler damage.

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