Parker BD-137771212-1 Hydraulic Hose Fitting 45 Elbow

Product Description

The PARKER BD-137771212-1 is a 45-degree elbow hydraulic hose fitting designed for use with medium- and high-pressure hydraulic hose assemblies. Constructed from steel, this fitting features a female JIC threaded connection with a 1-1/16-12 thread size and is compatible with 3/4-inch (0.75-inch) inside-diameter hose. It is rated for Series 77 applications and is intended for use with 787TC and 797TC hose lines. Licensed hydraulic technicians, industrial mechanics, and fluid-power specialists install this fitting where a 45-degree directional change is required in a hydraulic circuit.

This fitting is suited for mobile equipment, industrial machinery, and fluid-power systems that run Parker Series 77 hydraulic hose. The 45-degree elbow geometry reduces stress on the hose at connection points where a straight fitting would create a tight bend radius or clearance issue. The female JIC threaded interface provides a reliable metal-to-metal seal appropriate for hydraulic service. Typical install scenarios include agricultural equipment, construction machinery, and industrial power units.

Key Features

• 45-degree elbow configuration for directional routing in confined spaces
• Steel construction for durability in hydraulic service environments
• Female JIC threaded connection with 1-1/16-12 thread size
• Compatible with 3/4-inch ID (Hose Size 12) hydraulic hose
• Designed for use with Parker 787TC and 797TC hose series
• Threaded interface provides metal-to-metal sealing without additional sealant

Compatibility

Designed for use with Parker 787TC and 797TC hydraulic hose in Series 77 applications with a 3/4-inch (Hose Size 12) inside diameter and a 1-1/16-12 female JIC threaded end connection.

Installation Notes

Installation should be performed by a qualified hydraulic technician or fluid-power specialist. Depressurize and bleed the hydraulic system fully before disconnecting or installing any fitting. Inspect threads for damage before assembly and torque to the fitting manufacturer specification using a calibrated torque wrench — do not over-tighten JIC fittings, as over-torquing can deform the 37-degree flare seat. Follow applicable OSHA and equipment OEM guidelines for hydraulic system service.