Parker PP-00878 Hydraulic Hose Swivel 90 Elbow 5/8in 7/8-18

Product Description

The PARKER PP-00878 is a long pilot male tube-O swivel 90-degree elbow fitting designed for hydraulic hose assemblies. It provides a sealed, swivel-capable right-angle connection between a hydraulic hose and a mating port, allowing the hose to be oriented without twisting under pressure. Constructed from steel, the fitting is suited for high-pressure hydraulic system applications. It accommodates a 5/8-inch hose diameter and uses a 7/8-18 thread size with a male shaft configuration. This fitting type is standard in mobile and industrial hydraulic circuits where routing constraints require a 90-degree hose exit.

This fitting is used in hydraulic systems where a right-angle connection is required at the hose end. The long pilot nose aids in alignment during make-up and helps prevent cross-threading in field assembly situations. The tube-O sealing design relies on an O-ring at the nose for leak-free sealing against a flat-face or tube-O port. Typical applications include mobile equipment, industrial machinery, and any hydraulic circuit where hose routing must change direction at a port connection. Installation is performed by hydraulic technicians and millwrights working on mobile or stationary hydraulic equipment.

Key Features

• Long pilot nose design aids port alignment and reduces cross-threading risk during assembly
• Swivel design allows hose positioning after fitting make-up without twisting the hose
• Tube-O O-ring face seal provides a reliable, leak-resistant connection
• 90-degree elbow configuration supports tight hose routing in confined spaces
• Steel construction suited to standard hydraulic fluid service conditions
• Fits 5/8-inch hydraulic hose with 7/8-18 male thread

Compatibility

Designed as an OEM-style replacement or service fitting for hydraulic hose assemblies using 5/8-inch hose and 7/8-18 tube-O ported connections in mobile and industrial hydraulic systems.

Installation Notes

Installation is performed by qualified hydraulic technicians. Depressurize and bleed down the hydraulic system fully before disconnecting any fittings or hose assemblies. Inspect the O-ring sealing surface on both the fitting and the mating port for nicks or contamination before assembly. Follow the fitting manufacturer torque guidelines for 7/8-18 tube-O fittings and confirm the swivel rotates freely after final torque to allow proper hose positioning.