Enerpac CD411M Hydraulic Hose Coupler Dust Cap 3/8 in

Product Description

The ENERPAC CD411M is a steel female dust cap designed to protect hydraulic hose couplers from contamination, debris, and moisture when the coupler is not in service. Part of the CD series, this cap fits a 3/8-inch hose coupler with a 3/8-18 thread and is rated for pressures from 0 to 10,000 psi. It is a small but critical component in maintaining system cleanliness and preventing damage to coupler seals and internal passages. Hydraulic technicians and maintenance professionals install this cap as a protective measure on disconnected coupler ends in high-pressure hydraulic systems across industrial and commercial applications.

This dust cap is intended for use with C-604 Series couplers and is suited for high-pressure hydraulic circuits operating up to 10,000 psi. It is commonly used in industrial maintenance environments where hydraulic lines are frequently connected and disconnected. The steel construction provides durability in demanding shop and field conditions where plastic caps would be prone to cracking or stripping under repeated use or in high-temperature environments.

Key Features

• Rated for pressures from 0 to 10,000 psi for compatibility with high-pressure hydraulic systems
• Steel construction resists wear, impact, and temperature extremes
• Female thread configuration with 3/8-18 thread size for secure engagement
• Fits 3/8-inch coupler hose size in the C-604 Series
• Part of the CD series for organized, consistent coupler protection across a fleet or facility

Compatibility

Designed for use with the C-604 Series coupler. Verify thread size and hose diameter before installation to confirm fitment with your specific coupler configuration.

Installation Notes

Relieve all system pressure and depressurize the hydraulic circuit completely before removing or installing dust caps or coupler components. This cap is installed by hand-threading onto the female coupler end — do not use tools that could cross-thread or deform the fitting. Hydraulic system service should be performed by qualified technicians following applicable industry safety standards. Keep the cap installed on disconnected coupler ends at all times when the circuit is open to prevent contamination.