Graco 189857 Cylinder Replacement

SKU: 57-5262
In stock
Replacement for: Graco 189-857, Graco 189857
Regular price $1,008.58
Ships same day if order placed before 3pm EST

Ships same day if order placed on M-F before 3pm EST

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Questions? Contact our Expert, Garth

The Bedford 57-5262 is a direct-fit replacement for the Graco 189857 pump cylinder used in Dura-Flo 750 180cc lowers. This is the bore the piston travels in, and its surface is what every packing in the wet end seals against.

A cylinder outlasts many sets of packings, but once the bore is scored no new packing set will hold pressure for long. Shops rebuilding a high-hour Dura-Flo 750 inspect the bore before ordering seals, since fitting fresh packings into a worn cylinder is the most common reason a rebuild fails early. The 180cc lower is rated to 6800 psi, so bore condition directly limits what the pump can hold.

Common reasons for replacement:

  • Scoring, grooves or pitting in the bore, seen or felt during a rebuild
  • Fresh packings that fail again shortly after a rebuild
  • Pressure that will not hold on the downstroke even with new piston packings
  • Material bypassing the piston, showing up as reduced output at an unchanged cycle rate

Manufactured to OEM-equivalent dimensions for proper fit and performance. Compatible Graco equipment models are listed in the Compatible Equipment section below, where available.

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