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Graco 103611 Packing O-Ring

The Graco 103611 Packing O-Ring is a genuine seal designed for the 4-way valve in the Graco 8900 Proportioner, ensuring leak-free operation and reliable valve performance.

  • Used in 4-way valve assembly
  • Prevents air and fluid leaks
  • Genuine Graco replacement part
  • Ensures smooth valve shifting

$110
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Compatibility & Details for Graco 103611 Packing O-Ring

Compatible Machines

  • Graco 8900 Proportioner (4-Way Valve)

The Graco 103611 is a genuine replacement Packing O-Ring for the 4-way valve used on the Graco 8900 Proportioner. It restores sealing integrity, helps prevent leaks, and supports proper valve shifting and flow control.

Specification Details
Manufacturer Graco
Part Type Packing O-Ring / valve seal
Part Number 103611
Primary Application Seal for 4-way valve in Graco 8900 Proportioner
Function Maintains a leak-free seal and proper valve operation
  • Use genuine Graco parts to ensure correct fit and material compatibility.
  • If your machine’s documentation lists a different O-ring number, verify against the valve assembly bill of materials before purchase.

Frequently Asked Questions

It seals the 4-way valve in the system to prevent fluid or air leaks and to maintain reliable valve shifting and flow direction.

Check your model’s parts list for the 4-way valve assembly and verify that the O-ring reference is 103611. For the 8900 Proportioner, this is the specified packing O-ring.

Replace it if you notice leaks, pressure loss, erratic valve shifting, or visible damage/wear to the seal during maintenance.

Relieve system pressure, disassemble the 4-way valve per manual, clean the groove, install the new 103611 O-ring, lightly lubricate with a compatible lubricant if specified, then reassemble and test at low pressure first.

For best results, use the genuine Graco 103611. Generic sizes/materials may not match the required tolerance or chemical compatibility and could reduce valve life.

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