6409-08 is a #8 SAE O Ring Boss hex socket plug for closing an unused hydraulic port. The plug threads into a compatible #8 SAE ORB port and uses an internal hex drive for installation where outside wrench clearance may be limited.

• Port size: #8 SAE ORB
• Fitting style: Hex socket hydraulic plug
• Purpose: Seals an open O Ring Boss port in a hydraulic system
• Tool interface: Internal hex socket accepts a compatible hex wrench

Confirm the correct O ring and torque requirements for the hydraulic component before installation.