When quality and reliability count, contractors and professional painters consistently choose genuine Graco Magnum ProS19 & ProS21 pump assembly parts—like those available at SprayersandParts.com. These factory-spec components deliver the precision, durability, and warranty support contractors need to maintain jobsite productivity and protect their investments.
Why Choose Genuine Graco Pump Assembly Parts?
- Precision engineering for perfect fit: Each part—housing, valves, springs, seals—meets strict OEM tolerances.
- Designed for jobsite pressures & chemicals: OEM parts withstand up to 3,000 psi and aggressive coatings.
- Warranty & expert support: Maintain Graco's warranty and access technical guidance for your rig.
Key Components & Specs Overview
SprayersAndParts.com carries every part in the ProS19 & ProS21 pump assembly lineup:
- Pump housing (PN 17G447)
- Ball guide (17D364), compression spring (128336), stainless-steel ball (105445)
- Inlet/outlet valve kits: 17J877, 17J880
- Drain valve assembly: 235014 / 224807
- O-ring kits: 16P303, 120776, 16D531
- Manifold screen: 288747
- ProXChange pump cartridge: 24Y472
Specs: Up to 3,000 psi, stainless-steel piston pump, modular ProXChange design.
Fast Shipping & Expert Support
Qualified orders placed by 12 noon (CST) mostly qualify for sameday shipping Graco warehouses. The SprayersandParts support team can:
- Help identify the correct parts using exploded diagrams
- Advise on part compatibility between ProX19, ProS19, and ProS21
- Prevent incorrect orders and downtime with expert product advice
Pro Tips for Long-Term Reliability
- Track service intervals: Replace wear parts like seals, pistons, and guides proactively.
- Use fresh lubricant: Every seal kit install should include lubricant to extend pack-off life.
- Stock spares: Keep a ProXChange cartridge (24Y472) on hand for emergency swaps.
- Clean your strainers: Use color-coded inlet strainers like part 245673 to prevent clogging.
- Organize parts bins: Color-code or label small parts to avoid jobsite confusion.
Why It Matters for Contractors
Genuine Graco parts help you:
- Reduce downtime with quick-swappable OEM parts
- Maintain consistent spray patterns for fewer touch-ups
- Protect resale value by keeping sprayers in top shape
“Replacing valves and seals often solves pressure or spray issues without needing a full pump swap.”
Conclusion
If you want contractor-grade reliability, OEM precision, and fast fulfillment, trust SprayersandParts.com for your Graco Magnum ProS19 & ProS21 pump assembly parts. With genuine Graco support and expert service, you’ll be ready for anything your next job throws at you.
