Overview & Key Details
Graco 26B417 PowerFill 3.5 Standard Series Cordless Loading Drywall Mud Pump is a fast, cordless way to load finishing tools and containers—no hand-pumping.
- Up to 3.5 GPM flow with ProControl™ speed
- Runs on DEWALT® 20V MAX batteries
- Tool-less teardown for quick cleaning
Compatible Machines / Tools
Designed to fill drywall finishing tools and containers (not an airless paint sprayer). Common compatible tools include:
- Automatic tapers
- Flat finishing boxes (all widths)
- Angle/Corner boxes & angle heads
- Corner applicators & mud tubes
- Hoppers (texture/hopper guns)
- Mud pans, trays, hawks & buckets (up to 5-gal class)
The PowerFill 3.5 uses Graco’s durable PowerStroke™ pump to move joint compound quickly and consistently, helping crews keep boxes topped off and tools in motion. Variable ProControl™ lets you slow the flow for precision or open it up for speed. The cordless design (powered by DEWALT® 20V MAX) means fewer cords and faster setup.
Key Features
- Cordless convenience: DEWALT® 20V MAX lithium-ion platform
- Up to 3.5 GPM: high output for rapid tool loading
- ProControl™ speed: dial in the flow to match each tool
- PowerStroke™ pump: built for long life and smooth delivery
- Tool-less teardown: remove power head, cylinder & filter quickly for cleaning
- Adjustable stabilizer: steady fit on common mud buckets (up to 5-gal class)
- Left/Right outlet setup: configure discharge to your workflow
Specifications
| Model | 26B417 — PowerFill 3.5 Standard Series |
| Flow Rate | Up to 3.5 gallons per minute (GPM) |
| Power | DEWALT® 20V MAX lithium-ion (cordless) |
| Use Case | Loading drywall finishing tools & containers (joint compound) |
| Bucket Compatibility | Stabilizes on common up to 5-gal mud buckets |
| Cleanup | Tool-less cylinder/head removal; inline filter serviceable |
What’s Typically Included
- Power head & pump cylinder assembly
- Intake & discharge components with inline filter
- Adjustable bucket stabilizer/foot
Note: Battery/charger and certain accessories may be sold separately depending on kit configuration. Verify package contents before purchase.
Pro Tips
- Use ProControl™ to slow the flow when filling small or narrow tools.
- Keep compound within recommended viscosity; strain if needed to reduce clogs.
- Rinse and service the filter after each use for best performance.
Frequently Asked Questions
Yes. It’s designed to load drywall finishing tools including automatic tapers, flat/angle boxes, corner tools, and mud tubes—plus trays, pans, and buckets.
The unit runs on DEWALT® 20V MAX lithium-ion batteries. Check your kit’s contents to confirm if battery/charger are included.
It’s intended for common drywall mud buckets up to the 5-gallon class. The adjustable stabilizer helps secure the pump to different bucket heights.
Yes. ProControl™ lets you dial back the flow for precise loading, reducing mess and overfill on smaller tools.
The PowerFill 3.5 features tool-less removal of the power head, pump cylinder, and filter. Flush with water per the manual, clean the filter, and allow parts to dry before storage.
