Graco 189857 Pump Cylinder
$1,533.00
$1,825.00
Save 16%
In Stock
Graco 189857 Pump Cylinder is a genuine OEM replacement for Dura-Flo 750 pumps, ensuring precise pressure and smooth coating flow. Perfect for restoring pump efficiency and durability.
- Compatible with Dura-Flo 750 (180 cc lower)
- Replaces worn or damaged pump cylinder assembly
- Maintains factory performance and reliability
- High-strength construction for industrial use
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
Compatibility & Key Details
Compatible Machines
The Graco 189857 Pump Cylinder is designed for the Dura-Flo series. Confirm your exact pump model before ordering.
- Graco Dura-Flo 750 pumps (180 cc lower)
Product Overview
The Graco 189857 Pump Cylinder (fluid cylinder/lower body) is a genuine OEM replacement component for high-pressure coating pumps. It forms the main fluid chamber that the piston operates within, helping maintain pressure, flow consistency, and sealing integrity during operation.
| Item | Details |
|---|---|
| Part Number | 189857 |
| Component | Pump Cylinder (Fluid Cylinder / Lower) |
| Pump Family | Dura-Flo 750 (verify against your model’s parts list) |
| Displacement (family ref.) | 750 series lower ≈ 180 cc (for reference/fit context) |
| Use Case | Restores proper pressure/flow after cylinder wear or damage |
Fitment Notes
- Always confirm by model/serial and the official Graco parts list before purchase.
- Only for lowers that specifically call out 189857. Different lowers within the Dura-Flo family may use different cylinders.
- Installation should follow Graco procedures; replace related seals/packings if required.
Why Choose Genuine Graco
- OEM quality for durability and pressure retention.
- Exact tolerances to protect pistons, packings, and seats.
- Maintains factory performance for high-pressure coating applications.
| Frequently Asked Questions |
|---|
|
Typically, the cylinder is supplied as the cylinder body. Seals/packings are separate kits unless explicitly stated. Check your parts list to see if a packing kit is recommended during cylinder replacement.
No. Fitment is specific. It is intended for Dura-Flo 750 lowers that list 189857. Other Dura-Flo sizes (e.g., 600/900/1200) can use different cylinders. Always match the part number in your manual.
Persistent pressure loss, uneven spray, internal scoring, or repeated packing failures can indicate a worn or damaged cylinder. Inspect the bore for wear and verify piston/seat condition.
Follow Graco torque and assembly procedures, use appropriate lubricants, and replace wear items (packings/seals) as recommended. After assembly, test for leaks and verify operating pressure.
Yes—Graco 189857 is a genuine OEM component when sourced from authorized distributors. Using OEM parts helps maintain performance and safety in high-pressure systems.
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