Graco 248979 Pump Cylinder Sleeve
$375.12
$521.00
Save 28%
In Stock
The Graco 248979 Pump Cylinder Sleeve restores pump performance by replacing a worn or damaged cylinder liner inside the fluid section.
- Replaces: Graco 240921
- Fits: GMAX 7900, GH 200, EH 200, Mark X, LineLazer 200 HS
- Function: Maintains sealing, pressure, and spray consistency
- Material: Hardened steel with precision chrome finish
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
Graco 248979 Pump Cylinder Sleeve — Compatibility & Key Details
Compatible Machines
- GMAX 7900 (gas models / pump platform)
- GH 200 (gas-hydraulic)
- EH 200 (electric-hydraulic)
- Mark X / TexSpray Mark X
- LineLazer 200 HS (stripers using the GMAX 7900 pump platform)
What this part does
The 248979 cylinder sleeve is the hardened, precision-bored liner inside the pump’s fluid section. Replacing a worn or scored sleeve restores sealing, pressure stability, and finish quality.
Quick Specs
| Part Number | 248979 |
|---|---|
| Supersedes | 240921 (check your manual/series) |
| Category | Fluid Section / Pump Cylinder Sleeve |
| Typical Use | Restore pump bore, pressure consistency, and service life on high-output **Graco** rigs |
| Notable Notes | Align the fluid-port notch correctly during install; inspect/replace packings if worn |
When should you replace the sleeve?
- Visible scoring or corrosion inside the cylinder bore
- Unstable pressure, pulsation, or poor finish despite good packings
- Excessive wear debris on removed packings/piston
Installation hints
- Confirm your pump lower/fluid-section part number and unit series before ordering
- Lightly lubricate components; keep all mating surfaces clean
- Align sleeve port notch precisely; torque to spec per the service manual
- Consider new packings/V-packs if previous sleeve was worn
Frequently Asked Questions
Yes—248979 is commonly listed as the replacement/supersession for 240921. Always verify against your unit’s series and pump lower in the manual or parts list.
It’s used across high-output platforms sharing the same pump geometry:GMAX 7900, GH 200, EH 200, Mark X (TexSpray), and **LineLazer 200 HS** (GMAX-based pump).
Not always, but it’s recommended to inspect packings. If the old sleeve was scored, plan on installing a new packing kit for best results.
Yes—align the sleeve’s fluid-port notch exactly as shown in your service manual to maintain correct flow and pressure.
Check your unit’s series and the pump lower/fluid-section part number in the OEM parts list. If it shows **248979** (or superseded **240921**), you’re good to go.
No reviews yet. Be the first to review this product!
