Compatible Machines (Verified)
- Graco GH 230 Standard (e.g., system part no. 24W929)
- Graco GH 230 Standard with Electric Motor Kit (e.g., system part no. 24W930)
- Graco GH 300 Standard (e.g., system part no. 24W935)
Product Overview
The Graco 26C190 Pump Repair Kit is an OEM packing/rebuild kit designed for the displacement pump assembly used on select GH 230 and GH 300 Standard series sprayers. It restores sealing performance by replacing worn packings, seals, and related service components to bring the pump back to factory tolerance.
Key Specifications
| OEM Part | 26C190 (Graco) |
| Category | Pump Repair / Packing Kit (displacement pump service) |
| Typical Pump Interface | Fluid inlet (UN male) / fluid outlet (3/8 NPT F) as used on compatible GH pumps |
| Intended Use | Repacking & seal refresh for GH 230 / GH 300 Standard series pumps listed above |
| Authenticity | Genuine Graco OEM components |
What’s Included*
- Upper & lower packings (leather/urethane/PTFE as specified by kit design)
- Seals and O-rings for pump wear points
- Wear components and installation items required for a standard repack
Why Choose This Kit
- Restores pressure control and spray pattern consistency
- Prevents fluid bypass and premature pump wear
- OEM fit for the pumps listed—no guesswork
Installation Notes
- Relieve pressure and follow Graco safety procedures before service.
- Disassemble pump per the service manual; inspect rod, sleeve, check balls, and seats.
- Pre-soak leather packings in light oil (if applicable) to aid sealing and longevity.
- Install new packings and seals in the correct orientation; lubricate as specified.
- Reassemble to the torque values specified by Graco; verify smooth operation.
- Prime with compatible fluid and check for leaks; adjust throat packing if required.
Frequently Asked Questions
Check the pump section of your Graco parts manual or the pump’s identification label. The correct repair kit number will be listed—use that number above all else.
No—OEM packings and seals restore factory performance. If performance changes, inspect for worn rods, sleeves, or check components that may also need replacement.
It’s not recommended. Genuine Graco parts ensure correct materials, fit, and longevity—critical for pressure sealing and safety.
Basic hand tools typically suffice. Follow the manual for any specific tools, torque specs, and packing adjustment procedures.
Replacement frequency depends on usage, materials sprayed, and maintenance. Symptoms like loss of pressure, leakage, or inconsistent pattern indicate it’s time to repack.
