Home » Lower Packing Nut - GM3500, Ultra 1000

Graco 178945 Replacement Lower Packing Nut: GM3500, Ultra 1000

SKU: 19-2629
In stock
Replacement for: Graco 178-945, Graco 178945
Lower Packing Nut - GM3500, Ultra 1000
$30.20
25% Off $40.27 $30.20
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Email (914) 241-2211

The Bedford 19-2629 is a compatible replacement for Graco parts 178-945 and 178945 — the lower packing nut used in Graco spray equipment. The packing nut threads down on the packing stack to set its compression — it is the adjustment that keeps the throat sealing as packings wear, and on many pumps it doubles as the reservoir for throat seal liquid. Compatible with Graco EM 590, Graco Fuller OBrien Pro 701, Graco GM 3500, Graco LineLazer 3500, Graco LoPro 1000, Graco Super Nova 700 and other compatible equipment.

Common reasons for replacement:

  • Packing compression no longer holding between adjustments
  • Renewed during a full pump repack
  • Stripped or galled threads from repeated adjustment
  • Worn wrench flats after years of service

Manufactured to OEM-equivalent dimensions for proper fit and performance.

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