Graco 390 PC Cordless Airless Sprayer Hi-Boy

Explore Our Full Line of Professional-Grade Graco 390 PC Cordless Airless Sprayer Hi-Boy Parts & Kits

When Graco 390 PC Cordless Airless Sprayer Hi-Boy quality matters, contractors, remodelers, and maintenance teams rely on SprayersAndParts.com. Our factory-authorized inventory stretches beyond the cordless platform—covering everything from the rugged Graco 7900 gas rig to replacement Graco sprayer parts for Magnum, Ultra Max, and Classic series. With genuine OEM components on the shelf,  we make it friction-free to spec, source, and shop every part you need to keep jobs on schedule.

Why Choose Genuine Graco 390 PC Cordless Hi-Boy Parts?

• Exact-fit engineering: Graco machines are built to ±0.001-inch tolerances. Only OEM seats, rods, and seals preserve the 3,300 psi rating and .47 gpm flow that give the 390 its professional edge.
• Battery-matched performance: Each Hi-Boy ships with two FLEXVOLT 20 V | 60 V MAX 6 Ah batteries that push up to three gallons per charge—performance third-party knock-offs can’t guarantee .
• Endurance™ Piston Pump: Hardened stainless and Chromex™ finishing deliver twice the life of copy-cat pumps, backed by Graco’s warranty .
• Brushless DC motor: Cooler running, spark-free design extends battery runtime and supports portable generator use on remote sites.

Key Specs at a Glance

With dimensions, material grades, and pressure limits so you can cross-reference parts with confidence:

Compatible Machines & Cross-Platform Parts

Graco’s modular pump architecture lets you stock one service kit and cover several sprayers:

• GMAX II 7900—shares filter manifolds, tip guards, and RAC X SwitchTips with the 390; keep a spare 248-204 pump repair kit to service both gas and cordless rigs .
• Ultra Max II 695—many packings, piston rods, and displacement pumps interchange (see parts manual p. 3) .
• Magnum X5—the 390’s spray gun accepts the same LP 515 and FFLP tips; use our graco magnum x5 spray gun parts diagram to verify seals and filters.
• Classic 395 PC & Ultra 395 E-II—share manifold filters and handle the same 3300 psi operating envelope.
• Graco 390PC cordless (25T804), (826280), (25T863), (25T943), (25T882), (25T805) ES 500 Stencil models (25U513), (25U514)

Top Replacement Categories in Stock

1. Pump Repair & Conversion Kits – Complete rod, cylinder, V-pack and gasket sets for 390, 695, and 7900 restore factory pressure in under an hour.
2. Graco Spray Tip Guards – RAC X, LTX, and LP guards in blue, green, and gray keep painters safe and ensure tip alignment.
3. Graco Cordless Paint Sprayer Parts – FLEXVOLT batteries, rapid chargers, brushless motors, and control boards—OEM serialized for warranty tracking.
4. Hose & Filter Assemblies – BlueMax II ¼ in × 50 ft hoses, 60-mesh stainless filters, and easy-flush manifold filters.
5. Power-Pack Accessories – Swivel adapters, ProConnect™ pump modules, and on-board toolbox trays (Hi-Boy cart only). 

Pro Tips for Long-Term Reliability

1 . Track pump hours: The 390 PC’s internal hour meter (tap the LED display twice) reminds you when 390 cycles or 50 hours are due for TSL oil and pack-off inspection.

2 . Double-lube every seal kit: Coat V-packs with Graco Blue Ice™ to reduce start-up friction by 30 %.

3 . Color-code parts bins: Keep graco spray tip guards in red bins and graco cordless paint sprayer parts in yellow so crews grab the right kit fast.

4 . Ground every system: X5/X7 manuals require a dedicated earth ground to dissipate static and prevent ignition—apply the same discipline to cordless rigs when spraying flammables.

Frequently Asked Buyer Questions

How long do FLEXVOLT batteries last in real-world spraying?

Painting interior latex at 2,800 psi, pros report 2.5–3 gallons per battery. Thicker elastomeric coatings shorten runtime; keep both packs charged for all-day production.

Can I run the 390 PC Cordless on a generator?

Yes. The brushless DC motor draws < 500 W under load; any 2,000 W inverter or 3 kW gas generator meets Graco’s 3,000 W recommendation .

Which tips deliver the best fine-finish results?

Pair the RAC X FFLP 210 for doors and cabinets or LP 517 for walls. Both fit the blue RAC X guard supplied with the sprayer.

Ready to Boost Uptime? Shop OEM Today

Add genuine Graco 390 PC Cordless Airless Sprayer Hi-Boy parts—including graco 695 parts and graco 7900 consumables—to your cart now. SprayersAndParts keeps you spraying, earning, and ahead of schedule—project after project.