Dayco 121491 Reusable Hydraulic Coupling Male 45-Degree Flare Steel

The Dayco 121491 is a reusable hydraulic coupling featuring a male 45-degree flare end connection. Constructed from steel for durability and reliability, this coupling is engineered for medium-pressure hydraulic applications across a wide range of industrial and mobile equipment.

Dayco Reusable Couplings are designed for use with GL/DGL and Y9/DR5 hose styles and are available in coupling styles BN/DN and GL. The reusable design allows the coupling to be field-installed and removed without specialized crimping equipment, making them a practical choice for maintenance and repair environments.

Key Features:

• Male 45-degree flare end connection
• Steel construction for medium-pressure performance
• Compatible with GL/DGL and Y9/DR5 hose styles
• Available in BN/DN and GL coupling styles
• Reusable — no crimping required for installation
• Suitable for truck and bus hydraulic systems, material handling equipment, off-road machinery, and machine tools

Dayco has been a trusted name in fluid power and power transmission components since 1905, supplying OEM and aftermarket customers worldwide with high-quality hydraulic fittings and hose assemblies.