Graco 246426 Pump Assembly
Graco 246426 Pump Repair Kit (.019) is a genuine OEM kit designed to restore pump performance on select Graco airless sprayers.
- Compatible with 295ST, 395ST Pro, 455ST Pro, 495ST Pro, STX/SPX & FieldLazer S100
- Replaces worn seals, packings, and valves in the pump lower
- Ensures proper pressure, priming, and longer pump life
Overview & Key Details
Graco 246426 Pump Repair Kit (.019) is a genuine OEM service kit designed to rebuild the pump section of specific Graco airless sprayers. It restores prime, pressure, and overall performance when the fluid section components are worn or leaking. This kit contains essential seals and packings to bring your sprayer back to peak condition.
Compatible Machines
- Graco 295ST
- Graco 395ST Pro
- Graco 455ST Pro
- Graco 495ST Pro
- Graco STX / SPX Series
- Graco FieldLazer S100 (Model 248942)
What’s Included / Purpose
This pump repair kit includes OEM wear components—such as packings, seals, and valve parts—to service the fluid section of your Graco sprayer. Regular replacement maintains pressure consistency, prevents leaks, and extends pump life.
Specifications
| Part Number | 246426 |
|---|---|
| Type | Pump Repair Kit (.019) (OEM) |
| Usage | For rebuilding compatible Graco airless sprayer pump lowers |
| Related Assemblies | Complete pump replacement: 246426 Pump Assembly (Endurance Pump Lower) |
When to Use
- When the sprayer loses pressure or fails to hold prime.
- After long hours of use or visible wear in the pump lower.
- As part of routine preventive maintenance to reduce downtime.
Installation Notes
- De-pressurize and flush the sprayer before service.
- Disassemble the pump lower and replace all worn components included in this kit.
- Lubricate the packings per Graco manual instructions before reassembly.
- Prime the sprayer and check for leaks and stable pressure.
Follow your sprayer’s service manual for correct sequence and torque specifications.
