Fitting Plug

Fitting Plug

This fitting is a #2 (1/8") male O-Ring Boss (ORB) hex socket plug, used to securely seal unused hydraulic ports in various systems on concrete mixers and other heavy equipment. Manufactured from stainless steel, it offers excellent corrosion resistance against hydraulic fluids and environmental exposure. The internal hex (Allen) socket head allows for installation in tight spaces where an external wrench would not fit. This plug is essential for maintenance and modification of hydraulic circuits, ensuring a reliable seal to prevent fluid loss and protect the system from dirt and moisture.

Key Features

• Fits #2 SAE O-Ring Boss (ORB) ports
• 1/8" nominal size with 5/16-24 thread
• Internal hex socket head for easy installation
• Stainless steel construction for high corrosion resistance
• Includes O-ring for a positive seal

Fits These Mixers

McNeilus, Terex, Con-Tech. This is a universal hydraulic fitting plug for any #2 SAE ORB port. It is commonly used on hydraulic systems in general-purpose concrete mixers and heavy equipment from brands like McNeilus and Terex to block unused ports on valves, pumps, and manifolds.

All measurements ± standard manufacturing tolerance.

Product descriptions are drafted with automated tools and reviewed as time allows. While we work to keep them accurate, specifications and fitment should be confirmed with a Customer Service specialist at 800-745-3414 before purchase. Found an error? Let us know and we’ll fix it.