Overview & Compatibility for the Graco 237398 Q Kit, Repair, Gun
Genuine OEM repair kit for select Graco spray guns. Restore sealing and performance by replacing key wear parts in the fluid section.
Compatible Machines / Guns
This kit fits the following Graco guns (check your gun’s exact part number and series):
- Graco Heavy-Duty Texture Gun — Part No. 241705 (Series B)
- Graco Heavy-Duty Texture Gun — Part No. 289605 (Europe only, Series B)
- Graco Heavy-Duty Texture Gun — Part No. 26C793 (Series A)
- Graco XHF Airless Spray Gun — Part No. 262854
- Graco 510 Airless Spray Gun — Part No. 236995
What is the Graco 237398 Kit?
The Graco 237398 Q Kit, Repair, Gun is a factory replacement set of wear components (e.g., needle/seat, seals, gaskets) for the valve/fluid path of select Graco spray guns. It restores proper shut-off, eliminates leaks, and helps return your spray pattern to spec—without replacing the entire gun.
Kit Specs & Helpful Info
| OEM Part Number |
237398 |
| Category |
Gun repair kit (fluid section wear parts) |
| Typical Contents |
Needle/seat + seals/gaskets (exact contents vary by gun model) |
| Noted Sizing |
Referenced as “size 090” for XHF line in Graco literature |
| Pressure / Ratings |
Use the gun’s published rating; this kit does not change the gun’s max pressure |
| Compatibility Check |
Match your gun’s part number and series (A/B, etc.) before ordering |
Why Choose OEM?
- Restores sealing to stop drips and tailing
- Maintains safety, performance, and spray quality
- Lower cost vs. full gun replacement
Installation Notes
- Always relieve pressure and disconnect power before service
- Clean the gun thoroughly; work on a lint-free surface
- Lubricate O-rings/seals per Graco manual recommendations
- After assembly, perform a low-pressure leak test, then test spray
Frequently Asked Questions
No. The kit replaces wear parts only. Always follow the gun’s published maximum working pressure and specifications.
Match your gun’s part number and series (e.g., Series A/B). The kit fits models listed above; if your gun isn’t listed, check its parts manual or contact support with your model/series and serial range.
Leaks at the tip, poor shut-off, spitting, and off-pattern spray typically caused by worn needle/seat or degraded seals in the gun valve.
Basic hand tools are usually sufficient. Work cleanly, protect sealing surfaces, and follow the sequence in your gun’s service manual for torque and orientation.
No—this is a repair kit for the valve/fluid path wear items. If your gun body, trigger, or other hard parts are damaged, order those separately or consider a replacement gun.
