Parker PQ-00091 Hydraulic Hose Coupler 5500 Psi 6mm

Product Description

The PARKER PQ-00091 is a stainless steel hydraulic hose coupler rated for 5,500 psi service. It connects hydraulic hose lines in high-pressure fluid power systems, providing a secure, leak-resistant junction between hose and fitting. The coupler is sized for 6 mm hose with a 3/8-18 thread and is built from stainless steel for corrosion resistance in demanding environments. Hydraulic technicians and fluid power mechanics install this coupler in mobile equipment, industrial machinery, and other high-pressure hydraulic circuits where reliable connections are critical.

This coupler is suited for residential and commercial hydraulic applications where stainless steel construction is required to resist corrosion from moisture, chemicals, or harsh operating conditions. Typical installation scenarios include industrial hydraulic systems, heavy equipment hose assemblies, and fluid power lines that require a 6 mm hose connection with 3/8-18 thread compatibility. The 5,500 psi pressure rating supports demanding high-pressure circuits.

Key Features

• 5,500 psi pressure rating for high-pressure hydraulic service
• Stainless steel construction resists corrosion and chemical exposure
• 6 mm hose size with 3/8-18 thread for precise fitment
• Compact design suitable for tight installation spaces
• Sold in a package quantity of 2 couplers per order

Compatibility

Designed as an OEM-style replacement or service coupler for hydraulic hose assemblies requiring a 6 mm, 3/8-18 threaded stainless steel coupler rated to 5,500 psi.

Installation Notes

Installation should be performed by a qualified hydraulic technician or fluid power mechanic. Always depressurize and bleed down the hydraulic system before disconnecting or installing any coupler. Verify thread type and hose size before installation to prevent mismatched connections. Follow applicable fluid power and equipment manufacturer service procedures throughout installation.