Graco 248980 Pump Cylinder Sleeve

Graco 248980 Pump Cylinder Sleeve is a hardened chrome sleeve designed to restore pressure and performance in Graco GH and GMax series sprayers. Ideal for high-pressure fluid systems.

OEM Graco part – ensures perfect fit and durability
Compatible with GH 200/230/300 and GMax 3900–7900
Prevents leakage and improves pump efficiency
Replaces worn or scored cylinder sleeves

Retail Price: $585

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Description

Compatible Machines

GH 200 (1st–4th Generation)
GH 230 (1st–3rd Generation)
GH 300 (1st–3rd Generation)
GMax 3900 / GMax II 3900 (1st–2nd Generation)
GMax 5900 / GMax II 5900 (1st–2nd Generation)
GMax 7900 / GMax II 7900 (1st–2nd Generation)

Product Summary

The Graco 248980 Pump Cylinder Sleeve is a hardened, precision-ground sleeve used in Graco high-pressure fluid pumps. It restores the pump’s internal bore where the piston reciprocates—helping recover pressure, reduce bypass, and extend overall pump life.

Key Specifications
Part Number	248980
Item	Pump Cylinder Sleeve (chrome/hardened sleeve for fluid section)
Function	Provides a durable, precise cylinder surface for the piston/rod to seal and reciprocate under high pressure.
Typical Symptoms Replaced For	Loss of pressure, scoring/wear in cylinder bore, excessive bypass, rapid packings wear.
Compatibility	See Compatible Machines list above.
What’s Included	Cylinder Sleeve (1) — other pump components sold separately.

When Should You Replace the Sleeve?

Visible scoring or wear inside the pump cylinder.
Persistent pressure drop even after replacing packings/valves.
Excessive leakage or bypass indicating loss of sealing surface integrity.

Installation Notes

Use OEM tools and follow the service manual for your exact sprayer.
Inspect piston/rod and packings; replace worn parts together for best results.
Cleanliness matters — keep abrasives out of the fluid section during assembly.

Question	Answer
Is 248980 an OEM Graco part?	Yes, 248980 is an OEM Graco Pump Cylinder Sleeve.
Will it fit my exact GH/GMax model?	Check the parts diagram for your machine’s generation (e.g., GH 230 2nd Gen). Generational changes can affect fitment.
Do I need other parts when replacing the sleeve?	Often yes—inspect/replace packings, piston/rod, and check valves if worn to restore full performance.
What causes sleeve wear?	Abrasive coatings, contamination, dry running, or misalignment can score the cylinder and reduce pressure.
Any break-in or setup tips?	Flush thoroughly, prime with compatible fluid, and avoid running dry. Follow torque specs and procedures in your Graco service manual.