Graco 390 Classic Stand Electric Airless Sprayer (Models 24U088 & 24U089) – OEM Parts Guide
Professionals investing in high-quality graco spray equipment appreciate reliability, power, and ease of service. The Graco 390 Classic Stand Electric Airless Sprayer, available in model 24U088 (230 V) and 24U089 (120 V), hits the mark perfectly — delivering up to 3,300 psi and 0.54 gpm in a compact, robust package. With SprayersAndParts.com’s comprehensive graco parts list, you’ll find everything needed to support repairs, regular maintenance, or upgrades — from motors and drives to pumps, hoses, controls, and graco paint gun accessories.
Motor, Drive Train & Housing Assembly
The foundation of this graco electric paint sprayer lies in its dependable motor-drive system:
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Electric Motor & Fan Assembly – The 249040 (120 V) and 249041 (230 V) motors include a cooling fan (249043) and retaining ring (119653), ensuring efficient thermal performance.
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Drive Gears & Crankshaft – Includes a gear reducer (249194), crankshaft gear (287054), and bearing thrust (180131) that convert motor rotation into the linear pump drive
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Housing & Fasteners – The sturdy drive housing includes essential screws and seals for durability.
OEM reliability ensures long-wearing performance — precisely what contractors need.
Displacement Pump & Fluid Section
At the heart of this sprayer is the 246428 pump — crafted for high-volume, professional performance:
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Displacement Pump (246428) – Handles working pressure up to 3,300 psi, featuring Chromex piston rod, durable packings, valve seats, springs, and O-rings.
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Graco Pump Repair Kit – A full rebuild kit includes Chromex rod, packings, valves, springs, and O-rings to restore original performance.
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Replacement Pump Options – A ready-to-install pump section that keeps downtime to a minimum.
This ensures both classic and newer GearBox systems run like new again.
Control Manifold, Pressure Regulation & Drain Valve
Built-in regulation keeps spraying smooth and consistent:
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Pressure Control Manifold & Transducer – Included in the 15E295 manifold and control block assembly
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Drain Valve Kit – Includes a prime/drain valve, gasket, seat, base, handle, and pin for efficient cleanup and transition between coating types
OEM components maintain precision and reliability throughout spraying jobs.
Fluid & Suction Accessories
Keeping coatings flowing cleanly prevents downtime and delivers finish quality:
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Suction Tube & Strainer (246385/246386) – Prevents debris entry; compatible with graco magnum x7 parts and other rigs.
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Suction Hose Kit – Includes O-rings, garden-hose adapter, and tubing for solid assembly.
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Drain Tube Kit & Deflector – Enhances shut-down cleaning efficiency.
Quick hose replacement saves cleanup time and protects valuable fluid sections.
Spray Gun, Hoses & Accessories
Finish quality depends on the right tools at the gun end:
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Contractor FTx Gun (288438) – Works with RAC‑X tips to deliver smooth, professional atomization.
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High-Pressure Hose (240794 or 240793) – Rated for 3,300 psi, connecting directly from pump to gun.
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Graco Paint Gun Accessories – Includes whip hoses, tip guards, gun filters, and Quick‑Connect adapters that integrate readily with this setup.
These components deliver controllable finish performance and operator comfort.
Frame, Wheels & Protection
Built for rugged job site conditions:
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Stand Mount Frame & Wheels – Rugged structure with semi-pneumatic tires and leg caps for mobility.
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Motor Shield Kit – Protects critical components from overspray and debris
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Handle Assembly & Clips – Secure hoses and accessories to the cart for efficient job-flow.
OEM vs Aftermarket – Why It Matters
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Tight tolerances ensure Chromex rods and packings deliver smooth flow and fail-safe sealing.
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Pressure support for 3,300 psi-grade operation keeps spraying consistent.
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Electronics compatibility across Graco Magnum X7 parts (e.g., boards, guard kits) for shared spares.
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Warranty safety — OEM components preserve coverage and resale value.
Sticking to the factory-grade path perks your rig for the long haul.
Maintenance Tips & Build Strategy
Annual Rebuild — Install a graco pump repair kit to swap packings, valves, and O‑rings.
Monthly Filter Update — Inspect suction, inline strainers, and manifolds to ensure clean flow.
Daily Maintenance — Use TSL lubrication, drain solids, and clean with leak-free hose connections.
Electronics Check — Inspect power cords, transducers, and control modules on each job start.
12-Month Service — Replace gear housing screws, motor shields, and gaskets.
Pro-Level Support — Order through “Graco pump replacement pump” or “graco pump repair kit” queries for certified refurb by local pros.
Summary Table
| Section | Key Components |
|---|---|
| Drive & Motor | Motors (249040/249041), gears, housing |
| Fluid Section | Pump 246428, rebuild kits, O‑rings & valves |
| Control & Drain | 15E295 manifold, drain valve kit |
| Fluid Accessories | Suction tube/hose, in-line filter, deflector |
| Gun & Hose Assembly | FTx gun, RAC‑X tips, HP hose |
| Frame & Protection | Cart frame, wheels, motor shield, handle clips |
Final Takeaway
The Graco 390 Classic Stand Electric Airless Sprayer combines proven engineering, rebuild support, and handling ease. With OEM graco magnum x7 parts compatibility, graco paint gun accessories, and a rebuildable fluid section using graco pump repair kit, it’s a field-ready powerhouse. From repairing internals to swapping hoses and electronics, the full graco parts list supports every aspect of service and maintenance.