The GRACO 278296 is a threaded pump plug made from nylon, designed to securely seal pump outlets in GRACO lubrication systems, such as the G3 Standard Automatic Lubrication Pump. Its primary function is to prevent leakage and contamination at unused pump outlets.

Key Features:

• Pump Plug
• 3/4-16 in
• Nylon
• For use with G3 Standard Automatic Lubrication Pump and similar GRACO equipment
• Threaded connection for secure fit
• Black color for easy identification
• Overall length: 35 mm (approx. 3.5 cm)
• Fits diameter: 19 mm (0.75 in)

Applications:
Used in automatic lubrication systems to seal unused pump outlets, ensuring system integrity and preventing contamination.

Installation Notes:

• Using genuine GRACO parts ensures proper fit, system reliability, and maintains warranty coverage.
• Ensure threads are clean and undamaged before installation.
• Hand-tighten the plug to avoid overtightening and potential damage to nylon threads.
• Inspect plug periodically for wear or damage as part of routine maintenance.