Overview & Quick Facts
The Graco 243639 Gun Trigger Repair Kit is a genuine OEM service kit designed to restore smooth, reliable trigger action on compatible Graco spray guns. Ideal for fixing sticking, sloppy, or worn triggers without replacing the entire gun.
Compatible Machines
This kit services the trigger mechanism on the following Graco guns:
- Graco SG2 Spray Gun
- Graco SG3 Spray Gun
Key Features
- OEM Quality: Genuine Graco parts for proper fit and long service life.
- Trigger Restoration: Helps eliminate sticking and improves trigger feel/return.
- Cost-Effective Fix: Repair the gun you already own instead of buying new.
- Simple Maintenance: Straightforward install with basic hand tools.
Specifications
| Part Number | 243639 |
| Item Type | Gun Trigger Repair Kit |
| Fits | Graco SG2 and SG3 spray guns |
| Application | Restores/maintains trigger mechanism performance |
| Brand | Graco |
Installation Notes
- Always depressurize the sprayer and engage the trigger lock before servicing.
- Clean the gun body and trigger area to remove dried paint before assembly.
- Check the trigger pin/retainer orientation and re-apply a light machine oil to moving points.
- After reassembly, perform a leak/trigger-return check with water or solvent as appropriate.
Frequently Asked Questions
This kit is designed for the Graco SG2 and SG3 spray guns. If your sprayer originally came with one of these guns, the kit will fit that gun model.
A sticking trigger, poor return, uneven pull, or visible wear in the trigger linkage are common signs. If the trigger won’t lock/unlock smoothly, a repair kit is typically the solution.
No special tools are required—basic hand tools are sufficient. Follow standard safety procedures and consult your gun’s manual for disassembly steps.
It restores trigger function. Leaks at the tip often relate to tip/guard or seat issues, while handle leaks may involve seals or packings. Inspect those components separately.
Yes—243639 is an OEM Graco trigger repair kit designed to match factory specifications.
