Part 0558659A is a return tube used in Advantage, Impact, and RentSpray series sprayers to route excess fluid back to the paint container or pump inlet. It maintains proper circulation, prevents cavitation, and ensures consistent material flow. Replacing a cracked, kinked, or worn return tube restores reliable recirculation and spray performance.
| Part Number | 0558659A |
|---|---|
| Part Description | Return Tube |
| Brand | Advantage, Impact, RentSpray |
| Fits | Advantage 400,500,600; Impact 340,400,410,440,640 I/IA; RentSpray 600 |
| Condition | New |
The return tube (0558659A) is a flexible hose that directs excess fluid from the pump or manifold back to the material supply. In circulating systems, this continuous loop keeps material mixed, prevents settling, and reduces pressure fluctuations. It is designed to withstand the chemical action of common coatings and repeated flexing.
Over time, return tubes can become brittle, crack, or collapse internally due to exposure to solvents or repeated movement. A damaged return tube may cause erratic pump operation, material starvation, or leakage. Replacing it restores proper circulation and extends pump life.
| Recirculation | Returns excess fluid to container, maintaining consistent flow |
|---|---|
| Pressure stability | Helps dampen pressure spikes and smooth pump output |
| Material conditioning | Keeps paint mixed and prevents settling in the hose |
| Cracks or splits | Visible leaks or material degradation |
|---|---|
| Kinking or collapse | Restricted flow causes pump cavitation |
| Hardening / brittleness | Loss of flexibility leads to breakage |
| Loose fittings | Tube slips off barbs due to stretched ends |
Return tube 0558659A is compatible with the following Graco sprayer models. Always confirm fitment using the correct parts diagram for your exact model and revision.
| Model / Series | Component |
|---|---|
| Advantage 400, 500, 600 | Return Tube |
| Impact 340, 400, 410, 440, 640 (I and IA) | Return Tube |
| RentSpray 600 | Return Tube |
When replacing the return tube, inspect these components to ensure complete system reliability.
A clogged strainer can increase load on the return circuit.
Worn seals can allow air into the system, affecting return flow.
A dirty filter restricts flow and may cause premature tube wear.
Copyright © 2024 AlltitanParts.com - All Rights Reserved.
