The GRACO 557866 is a back-mounted pressure gauge designed for monitoring high-pressure systems. It is typically constructed with a durable metal case and a clear dial for easy reading. This gauge is intended for use in GRACO equipment to provide accurate pressure readings in industrial and maintenance applications, such as lubrication and fluid handling systems.

Key Features:

• Pressure gauge
• 557866 / 2 1/2 in. (64 mm) dial diameter
• Metal case, clear dial
• 0-3000 psi (207 bar, 20,700 kPa)
• Designed for use with GRACO equipment and compatible with systems requiring 1/4 in. NPT inlet
• Back-mounted for space-saving installation
• Easy-to-read 2 1/2 in. dial
• Durable construction for industrial environments
• Reliable performance for continuous monitoring

Applications:
Used in industrial lubrication, fluid handling, and maintenance systems where accurate pressure monitoring is required. Suitable for mining, agriculture, and other heavy-duty applications.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of your equipment.
• Ensure the system is depressurized before installation
• Use appropriate tools to avoid damaging the gauge or threads
• Install in a location with minimal vibration for accurate readings
• Check for leaks after installation