Graco 17H868 Pump Cylinder - Product Overview
Graco 17H868 Pump Cylinder is an OEM fluid-end replacement for select high output Graco airless sprayers. Replacing a worn cylinder restores pressure consistency, spray pattern quality, and overall pump efficiency.
Designed to fit the models listed above, this cylinder seats the piston/packings within the fluid section to deliver reliable priming and long service life when used with correct maintenance practices (proper flushing and lubrication).
Compatible Machines
- UltraMax II 1095
- UltraMax II 1595
- GMax II 5900 IronMan
Key Specifications
| Part Number | 17H868 |
| Component Type | Pump Cylinder (fluid section) |
| Compatibility | UltraMax II 1095, UltraMax II 1595, GMax II 5900 IronMan |
| Approx. Dimensions | ~8.55" L × 2.85" W × 2.95" H (nominal) |
| Approx. Weight | ~1.3 kg (nominal) |
| Material / Finish | Hardened cylinder body designed for durability and wear resistance |
| Use Case | Restores pressure, reduces pulsation, improves atomization on compatible sprayers |
Why Choose 17H868?
- OEM fit for quick install on listed models.
- Restore performance: better pressure stability and spray pattern.
- Reduce downtime versus full pump replacement.
Maintenance & Install Tips
- Depressurize and flush the system before disassembly.
- Inspect piston/packings; replace if worn when installing the new pump cylinder.
- Use compatible lubricants and flush after each use to maximize service life.
Frequently Asked Questions
It houses the piston and packings within the sprayer’s fluid section, generating the pressure needed for a consistent spray pattern. Replacing a worn cylinder restores prime and reduces pulsation on compatible models.
- UltraMax II 1095
- UltraMax II 1595
- GMax II 5900 IronMan
It’s best practice to inspect and replace packings or the piston rod if worn. Refreshing wear parts during cylinder replacement helps ensure optimal pressure and longevity.
Match your sprayer model against the Compatible Machines list above and verify the OEM part number (17H868) in your parts manual. If your model isn’t listed, contact support with your exact model number and serial.
Note: Dimensions/weight are nominal and provided for reference. Always confirm your sprayer’s parts manual for exact configuration.
