OEM Graco 190 PC Hi-Boy Sprayer Parts – Complete Breakdown & Guide
If you're managing graco spray equipment on job sites or tackling high-volume paint jobs, the Graco 190 PC Hi-Boy is a workhorse. But even the toughest sprayer needs reliable components—everything from motors to suction tubes. This guide provides a fully detailed graco parts list, covering key sections like pump, drive, fluid filters, hoses, gun assembly, and accessories. Plus, it highlights how components overlap with graco magnum x5 parts, integrates into airless paint sprayer attachments, and ties into graco pump repair kit options. Whether you're maintaining inventory or diagnosing issues, this is your go-to reference.
Pump & Drive Section – Includes Graco Magnum X5 Parts
At the core of the Hi-Boy is the drive and pump assembly, which shares commonality with graco magnum x5 parts:
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Connecting rod & crankshaft – Robust components that transfer motor power into fluid pressure.
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Drive housing (243220) with cover (195099) and fasteners—this section requires careful assembly to maintain sealing integrity.
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Pump assembly (243187) in Series A–E models delivers the pumping power needed for high-output spraying.
For reliable seal replacement or full rebuilds, a graco pump repair kit is often the best solution—it bundles pistons, packings, springs, seats, and O-rings suited to the Hi-Boy platform, simplifying maintenance.
Fluid Intake & Filter Section
Keeping the fluid clean from start to finish helps avoid clogs and maintains spray quality:
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Fluid filter housing (243080) with stainless insert (15E288) and replacement filters—included strainer kit (235004) for clean pickup from the pail
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Prime & drain hose assemblies, including 244240 drain hose with deflector 241920, ensure easy system purges.
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Spring clip (195400) secures hoses during operation, maintaining workflow efficiency
These items are essential graco sprayer accessories designed to reduce downtime and maximize uptime.
Control System – Power & Electronics
The Hi-Boy control box regulates power, pressure, and safety:
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Power cord assembly with strain relief, toggle switch (195429 + boot 195428), potentiometer (236352), pressure transducer (243222), and control board are all included in this bold configuration
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Wiring components like capacitors, bushings, and grommets complete the electrical package.
These factory components ensure accurate pressure control and compliance with electrical standards—an important part of your graco parts list.
Gun & Hose Assembly – Spray Efficiency
Your spraying system ends at the SG3 gun:
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SG3 gun (243012) with 517 RST tip is the proven workhorse fitting into broader graco spray equipment collections.
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50′ airless hose (241923) safely handles the fluid from sprayer to gun.
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When paired with airless paint sprayer attachments like whip hoses or tip guards (RAC-X), it enhances comfort and finish quality.
These components ensure professional results with every pass.
Frame, Cart & Mobility Components
The Hi-Boy frame keeps things mobile and stable on site:
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Cart frame (241934) fit for standard or Hi-Boy units.
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Handles (241938) and pail hanger (17C990) for easy maneuvering and equipment arrangement.
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Two semi-pneumatic wheels (119451) help with rough surfaces.
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Support nuts, clips, and labels (instructional and safety) complete the build
These sprayer accessories ensure the sprayer is job-site ready every day.
Why Choose OEM & Graco Magnum X5 Overlap
Using OEM parts means:
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Factory tolerances—for peak graco spray equipment performance.
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Endurance under 3,000+ psi pressure with full chemical compatibility.
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Ongoing warranty and documentation support.
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Shared parts across models—elements of graco magnum x5 parts like hoses, tips, and seals often overlap with Hi-Boy components, making inventory flexible.
Maintenance Strategy & Graco Pump Repair Kit Integration
To get the most from your Hi-Boy:
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Quarterly rebuild using a graco pump repair kit restores drive efficiency and smooth operation.
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Replace filters (fluid insert and inlet strainer) every 50 hours of use—ensures clean delivery.
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Perform TSL lubrication daily via filler point to hydrate the packing seal.
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Stock key graco sprayer accessories, including hoses, gaskets, and wear parts.
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For deeper repairs, search “graco pump repair near me” to find Graco-authorized service centers; they can provide certified labor and OEM parts for warranty compliance.
✅ End-to-End Parts List Snapshot
| Section | Typical Parts Included |
|---|---|
| Pump & Drive | Crankshaft, pump, connecting rod, seals, drive housing |
| Fluid System | Filter housing, stainless insert, strainer, hoses, deflector, clips |
| Control System | Power cord, switch, potentiometer, transducer, board, wiring support |
| Gun & Hose | SG3 gun + tip, 50-ft hose, whip and tip guard attachments |
| Frame & Mobility | Cart frame, handles, wheel kit, pail hanger, nuts, labels |
Locating Parts & Expert Service
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Browse the SprayersAndParts catalog for exact OEM part numbers.
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Use part lookup to find replacements in stock.
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For comprehensive overhauls, request a graco pump repair kit or locate a service center using graco pump repair near me.
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Inventory items like graco magnum x5 parts cross-reference for adapted solutions on site.
Final Thoughts
With a complete graco parts list at your fingertips, maintaining and repairing your Graco 190 PC Hi-Boy sprayer is simpler and more cost-effective. Incorporate OEM components, leverage overlapping graco magnum x5 parts, and stay ahead with the right graco sprayer accessories. When it’s time for deeper service, a graco pump repair kit or professional rebuild—found via graco pump repair near me—will restore peak functionality, prolong the lifespan of your graco spray equipment, and keep your painting operations at full speed.