Graco 17C721 Displacement Pump Breakdown

Stay Job-Ready with Long-Life Authentic Graco 17C721 Displacement Pump Breakdown Components

ProConnect™ Endurance Pump 17C721 is the heart transplant that keeps Graco’s small-electric and compact gas rigs spraying profit instead of spitting pressure spikes. Designed for sprayers with the blue “PC” badge—210ES / 210PC, 230PC, 390PC, 395PC, 490PC, 495PC, 595PC—this stainless-and-Chromex lower drops in with one thumb-latch and a quarter-turn, no vise required. It is the factory upgrade path outlined in Graco’s breakdown manual (section 334599) and the very same assembly shipped on brand-new 210ES frames today.

Why Pro Painters Specify OEM 17C721 Pumps

• Chromex-Plated Rod & V-Max Blue™ Packings—tested to 700 gal before first repack, double the life of aftermarket steel.
• Quick-Install Door—ProConnect™ design lets one tech swap a seized pump in < 60 s; no lost billable hours.
• Full 3 300 psi Rating—carbide seats and stainless body match the pump curve on 0.021″ tips without cavitation.
• True Graco Warranty—when purchased through SprayersAndParts; counterfeit risk is zero.

Key Technical Specifications

Inside the Breakdown—What Comes in 17C721?

Graco’s PDF breakdown lists every sub-component by reference number so you know exactly what you’re buying and how it fits:

• 24W617 Displacement Rod (Ref 201)—precision-ground Chromex rod with Vortex oil grooves.
• 24W619 Pump Cylinder (Ref 206)—stainless bore honed to 8 µm for reduced packing wear.
• 180656 Button Plug (Ref 202)—pressure-rated to 5 000 psi; prevents “prime valve chatter.”
• 193047 Packing Nut (Ref 203)—6-facet tool flats for quick torque checks.
• 176757 / 176754 Gland Set (Ref 204-205)—female & male elements align packings without skew.

Need only one piece? Each reference number is a live SKU at SprayersAndParts, letting you grab a $7 button plug or a complete $73 cylinder without committing to a full pump rebuild.

Sprayers That Share This Pump Platform

Non-PC (gray) sprayers require retrofit clamp kit 17A226 before installing 17C721.

Field-Tested Tips for Long-Term Reliability

• Flush Warm: 100 °F water or mineral spirits dissolve latex 30 % faster—less rod scoring.
• Wet-Cup Discipline: Top off TSL every break; a dry cup is the #1 cause of scored rods.
• Mesh Matters: 60-mesh for wall latex, 100-mesh for enamel—match filter to graco paint sprayer 495.
• Colour-Code Bins: Blue = PC pumps, Red = Magnum DIY parts, Yellow = Sprayers and Parts fast-movers; new hires won’t grab wrong kits.
• Rotate Pumps: Keep two lowers per sprayer—one sprays while the other soaks overnight in Pump Armor™.

Frequently Asked Questions

Will 17C721 work on my 2013 Classic 395 (non-PC)?

You’ll need retrofit plate 17A226 or upgrade to a PC-branded frame.

Is the pump compatible with battery-powered 390 PC Cordless?

Yes—same clutch & manifold; battery runtime unchanged.

How often should I repack?

Every 500-700 gal on latex; half that on texture primers or two-part epoxies.

Can I rebuild just the rod?

Yes—part 24W617 is sold separately, but Graco recommends full seat/packing refresh for balanced wear.

Ready to Erase Downtime?

The pump that drives your profit is one click away. Add Graco 17C721 to your cart, bundle an Easy-Out filter six-pack, and Your graco sprayer will thank you; your schedule will, too.

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