Replaces Graco 183571 Cylinder Sleeve – Ultra 400/500, EM380, EM390 & EM490

Replaces Graco 183571 Cylinder Sleeve – Ultra 400/500, EM380, EM390 & EM490

Restore the fluid section on your older Graco airless paint sprayer with this aftermarket cylinder sleeve that replaces Graco Part #183571 / 183-571.

The cylinder sleeve provides the precision working surface for the piston and packings inside the displacement pump. A worn, scored, or damaged sleeve can cause premature packing wear, fluid leakage, pressure loss, and poor pump performance.

This quality aftermarket cylinder sleeve fits several classic Graco professional airless sprayers, including the Ultra 400, Ultra 500, Ultimate 500, EM380, EM390, EM490, Nova and Super Nova.

Part Information:

• Replaces Graco Part Number: 183571 / 183-571
• Product: Displacement Pump Cylinder Sleeve
• Type: Aftermarket
• Application: Airless Paint Sprayer Fluid Section / Displacement Pump
• Brand Compatibility: Graco

Fits Graco Airless Paint Sprayers:

• EM 380
• EM 390
• EM 490
• Ultra 400
• Ultra 500
• Ultimate 500
• Nova – Ultra Style
• Super Nova

I've consolidated the duplicate model names from the old listing—for example, 380 EM and EM 380 are the same model—so customers get a much cleaner compatibility list.

It may fit additional Graco displacement pumps that specify Part #183571. Always verify the original cylinder sleeve part number before ordering.

Features:

• Replaces Graco 183571 / 183-571
• Displacement pump cylinder sleeve
• Precision working surface for the piston and pump packings
• Fits several classic Graco EM, Ultra, Ultimate and Nova sprayers
• Quality aftermarket component
• Ideal for displacement pump rebuilding
• Helps prevent premature wear of new pump packings
• Economical alternative to replacing the complete displacement pump
• Helps keep older professional Graco sprayers in service

What the Cylinder Sleeve Does

The cylinder sleeve forms the working bore inside the displacement pump. As the pump operates, the piston and packings move within this surface while the fluid section develops the high pressures required for airless spraying.

Because the sleeve is part of the sealing surface, its condition is just as important as the condition of the piston rod and packings.

Abrasive coatings, contamination, dried paint, corrosion, and normal wear can eventually leave the sleeve scored, scratched, pitted, or worn. Installing new packings into a damaged cylinder can result in leakage or premature packing failure.

Common Signs of a Worn Cylinder Sleeve:

• Visible scoring or scratches inside the cylinder
• Pitting or corrosion
• Difficulty maintaining spray pressure
• Excessive internal pump leakage
• New packings wear or fail prematurely
• Reduced fluid output
• Inconsistent pump performance
• Repeated fluid section problems after rebuilding

Rebuilding Your Graco Fluid Pump

If you're rebuilding one of these older pumps, don't automatically assume that installing new packings is all it needs.

Inspect the cylinder sleeve carefully. Any scoring or damage in the area where the packings operate can shorten the life of a new packing set.

While the pump is apart, inspect the:

• Cylinder sleeve
• Piston rod
• Upper and lower packings
• Packing glands
• Inlet and outlet balls
• Ball seats
• O-rings and seals

Replacing worn hard parts along with the packings can make the difference between a successful rebuild and having to tear the pump apart again.

Keeping Older Graco Sprayers Working

The EM380, EM390, EM490, Ultra 400, Ultra 500, Ultimate 500, Nova and Super Nova are older machines, but that doesn't mean they're ready for retirement.

Many of these professional sprayers can continue working for years when their displacement pumps are properly maintained and rebuildable components remain available.

That's why we include the original Graco part number and compatible sprayer models whenever possible—making it easier to identify the correct parts for these older machines.

Important:

This listing is for one aftermarket cylinder sleeve that replaces Graco Part #183571 / 183-571.

This is an aftermarket component and is not manufactured by Graco.

Because these machines are older and may have had pumps replaced or changed during their service life, always verify the 183571 part number for the displacement pump currently installed on your sprayer before ordering.

Need help identifying pump parts for an older Graco airless sprayer? Contact us with your sprayer model, series, or original part number—we'll help you find the correct parts to keep your equipment working.