Overview & Key Benefits
The Graco 187652 Hose, Drain is an OEM drain/return hose that routes flushed material safely out of the pump during priming, cleaning, or shutdown. Designed for dependable solvent resistance and a precise OEM fit, it helps prevent messy backflow and reduces downtime on Graco airless sprayers.
Compatible Machines
Listed by common families/models that use the 187652 drain hose assembly.
- ST Series: 390 ST, 395 ST, 450 ST, 455 ST, 490 ST, 495 ST
- Ultra / Ultra Plus: Ultra 600, Ultra Plus 600
- Ultra Max: Ultra Max 695
- Pro Series: Pro501
What It Does
- Provides a dedicated drain/return path during prime and clean cycles.
- Helps keep paint and solvent away from the pump and frame, reducing cleanup.
- Maintains OEM performance and safety compared with improvised tubing.
When to Replace
- Hose is cracked, brittle, or swollen from solvents.
- Leaks or loose fit at the barbs/clamps.
- Visible kinks or restrictions that slow draining.
Specifications
| Part Number | 187652 |
| Item Type | Drain / Return Hose (OEM Graco) |
| Application | Airless paint sprayers – prime/clean/shutdown drain line |
| Fits Families | ST (390–495), Ultra 600, Ultra Plus 600, Ultra Max 695, Pro501 |
| Typical Location | Pump/manifold drain outlet to waste pail/return tube |
| Package Contents | 1 × Graco 187652 Hose, Drain (clamps not always included) |
Frequently Asked Questions
Yes. Graco 187652 is an OEM drain hose designed to match factory length, bend radius, and material spec for supported models.
ST Series (390–495), Ultra/Ultra Plus 600, Ultra Max 695, and Pro501, plus units built under assembly numbers such as 231421, 231584, 232663 (see full list above).
Packaging may vary by batch. Many listings sell the hose only. If your current clamps are worn, add new OEM clamps for a secure seal.
Match your sprayer’s model and assembly number to the list above or check your parts manual. If you’re unsure, share your model/serial and we’ll verify before you order.
Power down and depressurize the sprayer. Note the original routing to avoid kinks. Push the hose fully over the barbs and tighten clamps evenly. Run a quick prime/flush to leak-check.
