Graco 124249 Ceramic Ball - Si-N
The Graco 124249 Ceramic Ball – Si-N is a durable OEM check-valve component made from silicon nitride for long life and reliable sealing performance. It’s essential for maintaining pump pressure and proper fluid flow.
- Material: Silicon Nitride (Si₃N₄) Ceramic
- Function: Controls one-way fluid flow, prevents backflow
- Fits: Magnum X5, X7, ProPlus A30/A45, Tradeworks 150/170, Ultra Max II, GMax, Mark series
- OEM Quality: Genuine Graco replacement part
Precision Ceramic Check Ball (Si-N) for Graco Pumps
Compatible Machines
This Graco 124249 Ceramic Ball – Si-N is used in check-valve assemblies across several popular Graco sprayers. Always confirm against your unit’s parts diagram.
- Graco Magnum X7 Airless Paint Sprayer
- Graco Magnum X5 Airless Paint Sprayer
- Graco ProPlus A30
- Graco ProPlus A45
- Graco Tradeworks 150
- Graco Tradeworks 170
- Graco Ultra Max II series (select models)
- Graco GMax series (select models)
- Graco Mark series (select models)
- Graco 1595 (select pumps/models)
Tip: Model-to-model valve configurations can vary. If your model isn’t listed, check the pump’s inlet/outlet valve diagram for “124249”.
About Graco 124249 Ceramic Ball – Si-N
The 124249 is a silicon-nitride (Si-N) ceramic check ball used in Graco airless sprayer valve assemblies to ensure one-way fluid flow and reliable sealing under pressure. Its ultra-hard ceramic construction offers excellent wear and chemical resistance for longer service life in demanding coatings.
- Role: Check-valve ball (helps maintain prime and pressure; prevents backflow)
- Material: Silicon Nitride (Si3N4) high-performance ceramic
- Use Case: Commonly found in inlet/outlet valve stacks on select Graco pumps
- Quality: Genuine Graco OEM replacement part
Key Specifications
| Part Number | 124249 |
|---|---|
| Part Name | Ceramic Ball – Si-N (check-valve ball) |
| Material | Silicon Nitride (Si3N4) ceramic |
| Fits | Selected Magnum, Ultra Max II, GMax, Mark & related pumps (see list above) |
| Category | Valve components » Check-valve internals |
| OEM | Graco Original |
Note: Exact dimensions may vary by valve stack; match by part number and sprayer model diagram.
When to Replace the 124249 Ball
- Sprayer won’t hold prime or loses pressure intermittently
- Fluid leaks back through valve or “spongy” trigger feel
- Visible damage/chips on the ball or pitted seat contact
What’s Included & Compatibility Tips
- Included: One (1) Graco 124249 Ceramic Ball – Si-N
- Not Included: Seats, springs, retainers, or seals (order per your valve kit)
- Verify: Cross-check your exact sprayer model’s parts list/diagram for “124249” before purchase
