The Graco 235708 Pump Cylinder is a genuine OEM fluid section sleeve that restores pressure and sealing performance in your Graco sprayer. Ideal for maintenance or rebuilds, it helps eliminate pressure loss and leakage.
The Graco 235708 Pump Cylinder (also called a cylinder sleeve) is the precision-bored chamber of the fluid section. It guides the piston/rod and seals, allowing your airless sprayer to build and maintain high pressure for smooth, consistent spraying. Replacing a worn cylinder restores pressure, reduces internal leaks, and extends packing life.
| OEM Part | 235708 (Genuine Graco) |
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| Also Known As | Pump cylinder / cylinder sleeve (fluid section) |
| Pump Association | Used with Graco fluid pump assemblies (e.g., fits pump body 235-699 in applicable models) |
| Function | Provides sealing surface for packings; maintains pressure and alignment of the piston/rod |
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Check your sprayer’s parts manual for the fluid section bill of materials. If the cylinder lists 235708 (or is included in the compatible models above), it’s the correct sleeve. Serial ranges and pump families matter—verify before ordering.
Yes—installing fresh packings is strongly recommended. A worn cylinder can damage packings, and new packings need a smooth, in-tolerance sleeve to seal correctly. Inspect the rod as well and replace if pitted or scored.
Loss of pressure, frequent packing blowouts, leakage past the packings, or visible scoring on the sleeve. If performance declines soon after packing changes, the cylinder surface may be worn.
Yes. This is a genuine Graco cylinder. Aftermarket options exist, but OEM ensures correct tolerances and finish for pressure sealing and longevity.
Clean all mating surfaces, lubricate packings as specified by Graco, torque fasteners to spec, and prime with compatible fluid before spraying. If the rod shows wear, replace it together with the cylinder and packings.
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