Graco 290 PC Hi-Boy Sprayers Parts 1

If you're relying on Graco spray equipment for painting projects, the Graco 290 PC Hi‑Boy electric airless sprayer is a rugged and dependable choice. Built with a heavy-duty Endurance Chromex pump and enhanced features, the Hi‑Boy delivers excellent power and long-term durability. Here’s a friendly guide to the replacement parts, accessories, and maintenance essentials that help you keep your sprayer running smoothly.

What Makes the Graco 290 PC Hi‑Boy Special?

• Endurance Chromex Pump: Known for its solid build and long wear life, the Endurance pump is a workhorse in graco spray equipment.

• ProConnect Pump System: Swap tools faster onsite without disassembling—just disengage and reconnect the pump in minutes.

• Easy-Out Filter: The large capacity strainer reduces clogs and ensures consistent spray flow—critical for finish quality.

• Hi‑Boy Cart Configuration: A sturdy frame on pneumatic wheels, complete with handle and tool tray—ideal for portability and durability.

• Variable Speed Motor: Offers consistent pressure across 50–3,000 psi, ensuring stable finishes on different coatings.

Essential Graco Paint Sprayer Parts & Diagram

When you need repairs or upgrades, clear guidance is essential. That’s where the graco paint sprayer parts diagram comes in. Our exploded-view parts list shows every component—from pump housings to spray tip accessories—making it easy to find exactly what you need.

Commonly Replaced Parts:

• Pump Assembly & Lower – including piston rods, seals, valves, and packings

• Inlet Strainer & Manifold Filter – protect the fluid path and gun from debris

• Suction Tube & Ball Check Set – source of prime-related issues when worn

• Motor Kits & Brushes – supports both brushless and brushed variations

• Hose Kits & Nozzles – including BlueMax II hoses and RAC X tip guards

• Pressure Control Valve & Smart Controls – maintain spray pressure and stability

Every essential piece is documented in detail via the parts diagram, ensuring efficient maintenance and ordering.

DIY: Order a Graco Replacement Pump

If your spray pressure weakens, or the pump is leaking, a graco replacement pump might be the best fix. SprayersAndParts.com stocks OEM Endurance Chromex pumps (part 17C487), including complete lower kits and rebuild options.

Installation is simple with ProConnect: disconnect hoses and bolts, swap in the new pump, and you're back in action in about 10–15 minutes—no tools lost, no downtime wasted.

Graco Pump Repair Near Me: Your Local Help

Need help with repairs? Look for a local service provider offering graco pump repair near me. An authorized Graco service center or parts dealer can help diagnose issues like low output or leaking seals and provide OEM-grade parts and expert support. Maintaining your pump regularly can save you time and money in the long run.

Graco Paint Sprayer Accessories You Shouldn't Overlook

Beyond core parts, these graco paint sprayer accessories elevate your spraying experience:

• RAC X Tip Guard with SwitchTip: Switch nozzle sizes on the fly without tools.

• BlueMax II Hoses: Durable, kink-resistant tubing rated for 3,300 psi.

• Tip Extension Wands: Great for reaching high ceilings or tight crevices.

• Airless Finishing Kit: Includes gun, spray tips, and filters for fine surfaces.

• Throat Seal Liquid (TSL): Protects the pump’s rod seal during short delays.

These accessories ensure smooth operation and help achieve clean-edge finishes in tight spaces.

Step-by-Step: Maintaining Your 290 PC Hi‑Boy

Keeping your sprayer performing well means routine maintenance. Follow this care guide:

1. Regular Filter & Strainer Cleaning
   After each use, flush and inspect both inlet strainer and manifold filter. Replace worn or clogged filters promptly.

2. O‑Ring & Packing Inspection
   Lubricate and replace O‑ring packs every 500–1,000 gallons or if leakages occur near the fluid section.

3. Pump Assessment
   Watch for pressure drops or leaks. Use the ProConnect system to swap in a graco replacement pump or rebuild kit easily.

4. Motor Check
   Inspect brushes or connections as motors heat up. Replace worn brushes and ensure proper wiring alignment.

5. Hose and Gun Care
   Pay attention to hose wear; cracks or bulges indicate replacement time. Keep gun seals tight and spray tips clean.

6. Pressure Control Calibration
   Confirm pressure settings remain accurate. Re-calibrate unstable or inconsistent outputs.

7. Fluid Flush with TSL
   When pausing jobs, flush pump with fluid and apply Throat Seal Liquid to protect seals until restarting.

When to Switch to a Replacement Pump

If you notice any of the following, it’s likely time for a graco replacement pump:

• Persistent pressure loss even after cleaning

• Fluid leaks around the pump housing

• Excessive noise, vibration, or heat

• Frequent prime issues causing inconsistent strokes

Swapping in a new pump assembly can restore original performance at a manageable cost.

Recommended OEM Graco Options:

• Endurance Chromex Lower Pump (Part 17C487) – high-quality OEM replacement.

• Complete Pump Repair Kit – includes seals, packings, and valves

OEM parts are sealed-tested and designed for full compatibility, ensuring peak performance and safety.

Stay Prepared with These Parts & Accessories

Here’s a quick checklist of items to keep on hand:

• Graco replacement pump or rebuild kit

• Inlet strainer and manifold filters (60/100 mesh)

• O‑ring packing kits for the pump rod

• BlueMax II high‑pressure hose (1/4″×50 ft)

• Contractor PC gun with RAC X switch tip

• Pressure control and valve repair parts

• TSL Throat Seal Liquid cans

Keeping these ready helps prevent project interruptions and keeps you spraying under pressure.

Summary: Why OEM Parts Matter

Using genuine graco paint sprayer parts safeguards your investment in graco spray equipment. Authentic parts ensure:

• Proper fit and function

• Factory-tested performance under full pressure

• Warranty and service support

• Long-term reliability and uptime

Plus, with our graco paint sprayer parts diagram, you'll always identify the exact component you need—reducing errors and speeding up repairs.

The Bottom Line

If you own a Graco 290 PC Hi‑Boy, combining high-quality parts, clear diagrams, and accessible service makes all the difference. From routine filter cleans to pump rebuilds or swapping in a graco replacement pump, you'll stay ahead of wear and downtime. Add in the essential graco paint sprayer accessories, and you'll maintain top-end results on every job.

Check out SprayersAndParts.com to view the full parts lists, diagrams, and quick-disconnect kits—all optimized for the Graco 290 PC Hi‑Boy. Keep your sprayer running strong all season.

With premium graco paint sprayer parts, easy access to graco pump repair near me, and functional accessories, the Graco 290 PC Hi‑Boy stays productive—providing clean, consistent spraying for every task.