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Graco 101701 Carbide Ball

The Graco 101701 Carbide Ball is a durable OEM replacement check ball designed for high-pressure paint sprayers and texture units. It ensures consistent sealing and reliable pump performance across several professional Graco models.

  • Material: Tungsten Carbide for long service life
  • Function: One-way check-valve sealing ball
  • Fits: Graco PT2500, Ultra / Ultra Max II 395-1095, GMAX 3900-7900, Mark V-VII, LineLazer HD/ES
  • Use: Replaces worn check balls to restore pump prime and reduce pulsation

$29.61
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About This OEM Carbide Check Ball (101701)

Compatible Machines

  • Graco PT2500 – outlet/check-valve ball in the fluid section.
  • Graco Ultra / Ultimate / Classic 395, 495, 595 – pump check assembly.
  • Graco Ultra Max II 695, 795, 1095 – check-valve ball inside the fluid section.
  • Graco GMAX 3900, 5900, 7900 – high-pressure pump check ball.
  • Graco Mark Series – Mark V, Mark VII (texture/airless rigs using this check ball).
  • Graco LineLazer HD/ES Series – pump check-valve ball where specified.

Product Overview

The Graco 101701 Carbide Ball is a hardened tungsten-carbide check ball used in pump outlet/check-valve assemblies. Its precise spherical sealing surface helps maintain prime, prevent back-flow, and stabilize pressure in demanding airless paint sprayers and texture sprayers.

Key Features

  • Carbide construction for exceptional wear resistance in abrasive coatings and high-cycle use.
  • OEM-spec sealing restores one-way flow in pump check assemblies to reduce pulsation.
  • Drop-in replacement during pump rebuilds or fluid-section service.
  • Broad platform coverage across popular Graco professional sprayer families (see list above).

Specifications

OEM Part Number 101701
Material Tungsten Carbide (hardened check ball)
Function One-way sealing element in check/outlet valve of the fluid section
Typical Use Airless paint & texture sprayers handling medium-to-high viscosity materials
Service Note Inspect/replace valve seat if worn; re-prime per machine manual after service

Installation & Care

  • Depressurize sprayer and isolate fluid supply before disassembly.
  • Clean debris from the valve body; replace the seat if pitted or grooved.
  • Install the carbide ball with correct orientation where applicable; follow torque specs from the manual.
  • Prime and test for leaks; verify steady pressure and proper check-valve action.

Frequently Asked Questions

Check your machine’s parts list for the check/outlet valve in the fluid section. If it specifies 101701, this is the correct ball. If unsure, share your model and pump/fluid-section number with our team for verification.

If the seat shows pits, grooves, or a dull sealing ring, replace it along with the ball. A worn seat can prevent proper sealing and shorten the life of a new ball.

Difficult priming, loss of pressure, excessive pulsation, or fluid leaking back through the check valve often point to a worn ball or seat. Inspect both components and replace as needed.

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