GRACO 16T549 - Mixing Chamber Kit

The GRACO 16T549 Kit, Chamber, Mix is a genuine OEM mixing chamber kit designed for use on select Graco two-component spray guns. It restores the gun’s internal mixing function by providing a new, precision-machined chamber and associated front-end components to help ensure consistent, high-quality mixing of A and B materials in spray foam and coating applications.

In a two-component spray system, the mixing chamber is where the individual A and B materials come together and are blended just before exiting the spray gun. Over time, exposure to high pressures, abrasive chemicals, and cured material buildup can wear the chamber and its sealing surfaces. Replacing the old chamber with the GRACO 16T549 kit helps restore smooth flow, proper mixing, and consistent spray patterns, reducing downtime and rework on the job.

The GRACO 16T549 Kit, Chamber, Mix is intended for use on specific Graco spray gun models that call out 16T549 in their parts breakdowns and manuals. Always verify compatibility with your gun model and Graco parts list before ordering or installing.

Compatible Equipment

• Series C guns

Related Parts

• 16T794 - EP Gun Tip Pour Kit
• 16T531 - Scraper Cartridge Kit
• 16T553 - EP Fluid Housing Kit Assembly

Kit Contents

• Mix Chamber (qty 1)
• Front Bearing (qty 1)

Requires 16T794 if using series A fluid housing. Series C guns do not utilize the TSL cartridge for lubrication of the purge rod and the front head assembly does contain a scraper.

Reference Manuals

• 313872 (Page 42) EP Gun