Graco 551187 Coupler, Grease F/ Flsh Ftg

Grease Coupler for Flush Lubrication Fittings

Compatible Machines

• Graco SST 1K Ultra-Lite SS Machine Mount Valve (Model 965766)
• Graco 1K Ultra-Lite Dispense Valve (Model 243666)
• Graco Hand-Held Valve with Pneumatic Trigger (Model 965767)
• Graco Hand-Held Valve with Electric Switch (Model 965768)
• Compatible with equipment that specifies OEM part 551187 in the service manual.

Product Overview

The Graco 551187 Coupler, Grease F/ Flsh Ftg is a genuine OEM grease coupler engineered for use with flush grease fittings on compatible Graco dispensing equipment. It allows grease to be applied efficiently to internal lubrication points without damaging the fitting, helping maintain smooth component movement and reducing wear.

Designed for routine preventive maintenance, this coupler works with compatible grease guns to deliver lubricant directly into flush-style fittings found on select 1K Ultra-Lite dispensing valves. Using the correct OEM coupler helps ensure reliable lubrication, extended component life, and consistent equipment performance. It is referenced as item 37 in applicable Graco parts manuals.

Key Features

• Genuine Graco OEM grease coupler for flush fittings.
• Provides clean, efficient lubrication during maintenance.
• Designed for use with compatible grease guns and flush grease fittings.
• Helps reduce friction and extend service life of moving components.
• Manufactured to meet original Graco fit and performance specifications.

Why Use the Correct Grease Coupler?

Flush grease fittings require a dedicated coupler to ensure proper lubricant transfer without leakage or fitting damage. Replacing worn or incorrect couplers helps maintain effective lubrication, minimizes equipment wear, and supports reliable long-term operation.

Frequently Asked Questions