GRACO Reservoir Fill Cap - (SKU: 557797)The GRACO 557797 Reservoir Fill Cap is an original replacement part designed to securely seal the reservoir of GRACO lubrication equipment. Its material is not specified in available sources, but it is engineered for durability and compatibility with GRACO systems. The cap is intended to prevent contamination and ensure safe, efficient filling of the reservoir during lubrication system maintenance. Key Features: Reservoir Fill Cap 557797 For use with

The GRACO 17F266 is a genuine replacement seal

Used for repairing or replacing the inlet valve in GRACO Magnum airless paint sprayers to ensure proper paint intake and pump performance

It is an electronic device that detects slow-flow and no-flow conditions in divider block lubrication systems

It is constructed for use with 1/2-14 BSPT (British Standard Pipe Taper) connections

No agitation

Use only GRACO-approved repair kits for replacements

Used in GRACO airless sprayers and related equipment to provide precise timing for operational cycles

Engineered for reliable hydraulic fluid return

supporting reliable operation in industrial and maintenance applications

ensuring consistent and reliable operation for painting and coating applications

enhancing operational reliability and reducing wear

Inspect guard regularly for wear or damage