Graco 17C721 Endurance Pump Kit (Lower)

The Graco 17C721 Endurance Pump Kit (Lower) delivers professional-grade performance and quick replacement for ProConnect sprayers.

Designed for ProConnect / PC frames
Includes Chromex® rod and V-Max Blue packings
Ensures smooth priming and consistent spray pattern
Easy, tool-free installation and maintenance

Retail Price: $392

You save: $93.95 (23.97%)

Our Price: $298.05

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Description

Overview & Technical Details

Compatible Machines

Graco Pro 210ES (ProConnect / PC) — Stand & Hi-Boy
Graco RentalPro 210 PC
Graco RentalPro 230 PC

Fit note: This Graco 17C721 Endurance Pump Kit (Lower) fits ProConnect (PC) frames listed above. For older/non-PC versions or other models (e.g., 390/395/490/495/595), confirm by serial/year and parts manual before ordering.

What is the Graco 17C721 Endurance Pump Kit (Lower)?

The 17C721 is a factory Endurance lower (displacement) pump for select Graco airless sprayers equipped with ProConnect (PC). It allows fast, tool-free pump swaps to minimize downtime on the job.

V-Max Blue packings for extended life and heat resistance.
Chromex® rod and wear-resistant cylinder for durability in abrasive coatings.
Designed for typical airless operating pressures up to contractor-grade levels.
Serviceable lower with easy access to inlet/foot valve for clearing debris.

Key Features

OEM Graco quality and fit for listed PC frames.
Quick changeover reduces job interruptions.
Optimized sealing stack to handle a wide range of paints & primers.
Smooth priming and consistent spray pattern when properly maintained.

Supports routine rebuilds for longer sprayer life.
Compatible with standard contractor gun/tip setups.
Clear wear-part path (seats, balls, packings) for predictable service.
Backed by Graco’s dealer network and documentation.

Specs & Inclusions

Kit Number	17C721
Type	Endurance Pump Lower (ProConnect / PC)
Rod / Packings	Chromex® rod with V-Max Blue packing stack
Typical Use	Contractor-grade paints/primers (follow coating & sprayer guidelines)
Included	Assembled lower pump, seals/packings pre-installed (refer to parts breakdown)

Always verify your sprayer’s manual/parts list to confirm this exact lower before purchase.

Installation & Care Tips

Relieve pressure, lock trigger, and follow Graco safety steps before service.
Use the ProConnect latch to remove/seat the lower; confirm O-rings are clean and lubricated.
Prime with appropriate solvent or water (per coating) after installation to confirm seal.
Daily maintenance: strain coatings, flush after use, and keep packings wet-capped.

Frequently Asked Questions

Question	Answer
Will this fit my non-PC (non-ProConnect) Pro 210ES?	The 17C721 is intended for ProConnect / PC frames. For non-PC units, check your serial/year and parts manual—mounting differs on some older frames.
Does it work on 390/395/490/495/595?	Some listings mention broader PC families, but compatibility varies by frame and year. Confirm against your sprayer’s parts list before ordering.
What symptoms indicate my lower needs replacement?	Hard priming, pulsation, pressure drop, material bypass, or packing leakage are common signs the lower or its wear parts need service.
Do I need special tools to swap the lower?	On PC models, the ProConnect latch enables tool-free removal/installation. Follow all pressure-relief steps and safety instructions.
How do I maximize life of the new lower?	Strain coatings, use correct tip sizes, avoid running dry, flush thoroughly after each use, and keep packings conditioned with pump armor as recommended.