The GRACO 121666 is a lubrication system injector designed for use in automatic lubrication systems. It is typically constructed from durable materials suitable for industrial environments and is intended to deliver precise amounts of oil to machinery components, ensuring optimal lubrication and equipment longevity.

Key Features:

• Injector for automatic lubrication systems
• 3900 Series, 0.40 cc Output, M14 x 1.5 thread
• 0.40 cc per cycle
• Use with Bar Manifolds in GRACO automatic lubrication systems
• Compact design for easy integration into lubrication systems
• Easy information on blocked lines or high system pressure
• Designed for reliable, consistent oil delivery
• Part change-out to clear blockages and maintain system performance

Applications:
Used in industrial and heavy equipment applications where automatic, precise lubrication is required to maintain machinery health and reduce downtime.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of the lubrication system.
• Ensure correct thread size (M14 x 1.5) for installation
• Use with compatible GRACO Bar Manifolds
• Regularly check for blockages and system pressure
• Follow manufacturer guidelines for maintenance and part replacement