Parker PT-00406 Hydraulic Coupler Dust Cap 1/4 in Male

Product Description

The PARKER PT-00406 is a male hydraulic hose coupler dust cap designed to protect open coupler ports from contamination during storage, transport, and service intervals. Constructed from steel, this cap fits 1/4-inch hose diameter male coupler fittings and provides a straightforward mechanical barrier against dirt, debris, and moisture intrusion. It is used by hydraulic system technicians and fluid power service professionals working on mobile equipment, industrial machinery, and hydraulic tool circuits. Keeping coupler ports capped between connections reduces seal wear and prevents particulate ingestion into sensitive hydraulic circuits.

This dust cap is suited for residential and commercial hydraulic service applications where 1/4-inch male coupler fittings are in use. Typical install scenarios include capping unused ports on hydraulic quick-disconnect couplers on skid steers, lifts, tool circuits, and test equipment during maintenance or equipment staging. Each package contains 5 caps.

Key Features

• Steel construction for durability in industrial and field service environments
• Male shaft type fits 1/4-inch hydraulic hose coupler ports
• Protects coupler seals and internal passages from dirt and moisture
• Compact form factor for easy storage in service kits and toolboxes
• Sold in quantities of 5 per package

Compatibility

Designed as an OEM-style protective cap for 1/4-inch male hydraulic hose coupler fittings in standard hydraulic quick-disconnect applications.

Installation Notes

Installation and removal of hydraulic dust caps should be performed by qualified fluid power or hydraulic service technicians. Relieve all hydraulic system pressure and depressurize the circuit before removing or installing coupler caps. Inspect coupler seals for wear or damage before reinstalling caps. Follow applicable workplace and equipment manufacturer safety procedures when servicing pressurized hydraulic systems.