

The Graco 183361 Sleeve Cylinder is a genuine OEM fluid-section sleeve used to restore pressure and sealing performance in several Graco sprayers. Ideal for maintenance or rebuilds.
The Graco 183361 Sleeve Cylinder is the OEM fluid-section sleeve (also called “cylinder/sleeve assembly”) used on select Graco sprayers. Check your exact model/series before ordering.
This part fits the following Graco models/series:
| OEM Part Number | 183361 |
|---|---|
| Part Type | Sleeve / Cylinder (fluid section) |
| Function | Houses the piston/packings in the fluid pump; restores pressure, reduces bypass/leaks when replaced. |
| Typical Symptoms Indicating Replacement | Loss of pressure, erratic spray pattern, fluid bypass, visible sleeve scoring, recurring packing failures. |
| What’s Included | Sleeve/Cylinder (other pump components sold separately unless stated on the kit page). |
| Install Note | Verify model/series & pump variant (e.g., Ultra/GM/LineLazer family) before installation. |
The Graco 183361 Sleeve Cylinder is an OEM wear component from the fluid section of select Graco sprayers (Ultra, GM and LineLazer families). Over time the cylinder can wear or score, causing packing failure and pressure loss. Replacing the sleeve helps restore proper sealing and pump performance. Using genuine Graco parts maintains durability and compatibility with factory tolerances.
| # | Question |
|---|---|
| 1 | How do I confirm if 183361 fits my sprayer? |
| 2 | Do I need new packings when I replace the sleeve? |
| 3 | What symptoms indicate the sleeve is worn? |
| 4 | Is Graco 183361 the same as a complete pump? |
| 5 | Any special break-in or flushing procedure after installation? |
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