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Graco 101718 Steel Ball

The Graco 101718 Steel Ball is a precision inlet check-ball used in the fluid section of Graco airless sprayers to maintain prime and prevent backflow. Ideal for keeping consistent pressure and smooth spraying performance.

  • Part Number: 101718
  • Material: Hardened Steel
  • Used In: Inlet / Check Valve Assemblies
  • Fits Models: Ultra 395, Ultra 495, Ultra 595, Ultra Max II 490/495/595
  • Replaces: Bedford 9-1258 (cross-reference)

Retail Price: $140.5
You save: $5.61 (3.99%)
Our Price: $134.89
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Key Compatibility & Quick Specs

Compatible Machines

  • Graco Ultra Max II 490
  • Graco Ultra Max II 495
  • Graco Ultra Max II 595
  • Graco Ultra 395
  • Graco Ultra 495
  • Graco Ultra 595
  • Other Graco contractor-class airless sprayers that use the same inlet/check-valve design

Product Details

Part Number Graco 101718 — Steel Ball
Category / Function Inlet / check-valve ball for fluid section; prevents back-flow and maintains prime
Material Hardened steel (precision spherical sealing surface)
Common Applications Graco Ultra / Ultra Max II contractor sprayers (see list above)
Cross-Reference Aftermarket reference sometimes shown as Bedford 9-1258 (for identification only)

Description

The Graco 101718 Steel Ball is a precision check-ball used in the inlet (suction) valve of Graco airless sprayers. During the intake stroke it lifts to admit material; on the return stroke it seats to seal the valve, preserving pressure and priming for consistent spray performance.

Why Replace the 101718 Ball?

  • Worn or pitted balls can cause loss of prime, pulsation, or poor spray pattern.
  • Fresh, round sealing surface restores check-valve sealing and efficient flow.
  • Using the correct OEM-spec ball ensures fit and durability under high pressure.

Fit & Verification

  • Match by model and by the inlet-valve assembly used in your pump lower.
  • Consult your sprayer parts manual or current bill of materials to confirm 101718 is specified.
  • If your unit uses a different valve family, select the ball that your assembly calls out.

Installation Tips

  1. Relieve all pressure and flush safely per Graco procedures.
  2. Disassemble the inlet/check valve; clean the seat and surrounding cavity thoroughly.
  3. Inspect the seat and spring; replace if worn to ensure proper sealing.
  4. Reassemble and torque to spec; prime and test for stable pressure and pattern.

Frequently Asked Questions

Not all. It fits models whose pump lower uses an inlet/check-valve that specifies the 101718 ball. Always confirm against your machine’s parts manual or BOM.

Often, yes. A worn ball or seat can prevent proper sealing. Inspect and replace the ball and seat/spring as needed, then test pressure stability.

Some catalogs reference Bedford 9-1258 as a replacement identifier. Use OEM specifications to ensure correct size and material for your valve.

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