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Graco 166168 Spacer Washer

The Graco 166168 Spacer Washer is a genuine OEM part used in internal pump assemblies to maintain precise alignment and spacing for smooth operation.

  • Ensures correct component alignment
  • Prevents premature seal wear
  • Built from durable OEM-grade material
  • Used in select Graco piston pump assemblies

$110.24
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Overview & Compatibility

This genuine Graco 166168 spacer is used inside specific Graco pump assemblies. Confirm by checking your unit’s parts manual.

  • Graco Ink Supply Pump — see service/parts manual 306805 series (lists “166168 WASHER, spacer” in the pump assembly)
  • Any Graco unit whose official parts list explicitly references part 166168 in the pump/air-motor assembly

Product Details

The 166168 spacer (washer) maintains the correct clearance and alignment between internal moving parts in compatible piston-style pump assemblies. Proper spacing helps extend seal life and sustain pump efficiency under continuous duty.

Key Features

  • Precision-machined spacer/washer used in internal pump assemblies
  • Supports correct rod/bearing alignment to protect packings and seals
  • OEM quality for durability in heavy-duty coating applications

Specifications

Part Number 166168
Description Spacer (washer)
Usage Internal spacing/alignment in compatible Graco pump or air-motor assemblies
Material/Build OEM-grade spacer for industrial duty (see model parts list for exact spec)
Condition New, genuine replacement part

Installation & Service Tips

  • Depressurize equipment and follow the service manual before disassembly.
  • Record spacer orientation/stacking during teardown; replace if worn or deformed.
  • Inspect adjacent wear items (rod, bearings, packings) when replacing the spacer.
  • Use the exact spacer listed for your model to maintain designed clearances.

Frequently Asked Questions

Check your model’s official Graco parts list. If the bill of materials calls out part 166168 in the relevant pump/air-motor section, the spacer is compatible. Provide model and serial number to your distributor if you’re unsure.

Incorrect spacing alters critical clearances, accelerating wear on bearings, rods, and packings, and can reduce pump output or cause premature failure. Always match the exact part number specified for your unit.

Yes—inspect the air piston rod, bearing surfaces, cup/packing sets, and any valve plates or retainers in the same assembly. Replace worn items during overhaul to restore factory performance.

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