Graco 15U597 Piston, 4.5 Cm
$257.50
Available to Order
Replacement piston for Graco airless pumps — engineered for smooth reciprocating action and long pump life.
- Brand: Graco
- Type: Piston
- Application: Pump fluid displacement
- Fit/Ports: 4.5 cm pump bore
- Material: Hardened metal
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
Compatible Machines / Systems
- Graco airless sprayer pumps with 4.5 cm piston bore
- Professional airless fluid handling series
- High‑pressure piston pumps requiring OEM pistons
| Manufacturer | Graco |
|---|---|
| Model Number | 15U597 |
| Type | Piston |
| Center Section Material | Hardened steel |
| Port Size | 4.5 cm bore |
| Air Inlet | N/A |
| Wetted Material | Metal |
| Compatible Media | Paints, coatings, solvents compatible with Graco piston pumps |
Frequently Asked Questions
What does the piston 15U597 do?
It reciprocates inside the pump chamber to displace fluid and generate pressure for spraying.
Does this fit all Graco pumps?
It fits Graco pumps designed for a 4.5 cm piston — always verify pump part breakdown.
How often should it be replaced?
Replace when wear or scoring is visible to maintain performance and prevent leaks.
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