Graco 102960 Piston Cup Packing

The Graco 102960 Piston Cup Packing is an OEM seal that ensures efficient pump performance and prevents pressure loss in professional Graco sprayers. Ideal for maintaining smooth spray operation and preventing leakage.

OEM Graco part for precision fit
Maintains consistent spray pressure
Used in Ultra Max, GMAX II, Mark V & Mark VII sprayers

$66.92

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Description

Product Overview & Compatibility

Compatible Machines

This Graco 102960 Piston Cup Packing is used across popular professional Graco airless sprayers. Always verify with your unit’s parts manual before ordering.

Graco Ultra Max Series (selected models)
Graco GMAX II Series (selected models)
Graco Mark V Series (selected models)
Graco Mark VII Series (selected models)

About the Graco 102960 Piston Cup Packing

The Graco 102960 Piston Cup Packing is an OEM sealing component that sits on the pump piston to maintain high-pressure sealing, reduce internal bypass, and help deliver a consistent spray pattern. A worn cup packing can cause pressure loss, pulsation, and premature wear of other pump parts. Replacing it at the first signs of leakage or pressure instability restores pump efficiency and extends overall pump life.

Key Features

OEM fit for reliable sealing and performance
Helps maintain spray pressure and pattern quality
Reduces internal leakage and wear on mating components
Supports smoother priming and steady material delivery

Specifications

Part Number	102960
Part Type	Piston cup packing (pump seal)
Brand / Origin	Graco OEM
Typical Use	Professional airless paint sprayer pump assemblies
Compatibility Guidance	Verify against your sprayer’s model-specific parts diagram before purchase

Replacement Notes

Replace if you observe pressure drop, material leakage past the piston, or erratic spray pattern.
Inspect mating piston and cylinder surfaces; replace any excessively worn components at the same time.
Lubricate per Graco guidance during assembly; use clean work practices to avoid contaminating the seal.

Frequently Asked Questions

Check the parts diagram for your exact model and serial range. If 102960 is listed for your pump assembly, it is the correct cup packing. When in doubt, contact us with your model and serial number for a quick verification.

Noticeable pressure loss, pulsation, material leaking past the piston, difficulty priming, or a rough/erratic spray pattern are common signs that the cup packing needs replacement.

Yes, if other wear parts are in good shape. However, many pros replace associated seals and check wear surfaces at the same time to maximize service intervals and avoid repeat downtime.

Basic hand tools typically suffice. Follow your model’s service manual for torque and orientation details. Use recommended lubricant during assembly and keep components clean.

Yes—Graco 102960 is an OEM part manufactured to Graco specifications for fit and performance.