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Graco 164477 Leather Vee Packing

For quick verification: Graco 164477 Leather Vee Packing seals the rod/piston in select Graco displacement pumps—confirm by checking your pump model in the parts list.

  • Part No.: 164477 (also 164-477)
  • Material: Leather V-packing (stacked seal)
  • Function: Controls leakage & maintains pressure
  • Known pump usage: 223587, 223842 (verify BOM)
  • Tip: Match by pump model, not sprayer family name

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Overview & Compatibility for Graco 164477 – Leather Vee Packing

The Graco 164477 Leather Vee Packing is a V-profile sealing ring used in stacked packing sets on select Graco pumps and dispensers. It provides durable, oil-compatible sealing around moving rods/pistons, helping maintain prime and reduce leakage under pressure.

Compatible Machines

Machine-level fitment depends on the pump assembly installed. The items below are the machine categories known to use the pump models that specify 164477. Please verify your exact pump before ordering.

  • Units equipped with Severe-Duty Displacement Pump 223587
  • Units equipped with Severe-Duty Displacement Pump 223842

Key Details

Part Number 164477 (may also appear as 164-477)
Official Name Packing, Vee, Leather
Function Forms part of a stacked V-packing seal set around rod/piston to minimize leakage and maintain pressure.
Material Leather (robust, oil-absorbent, conformable sealing material)
Typical Location Pump lower packings / displacement pump packing stack
Used With Selected Graco displacement pumps and industrial dispensers (see pump models below).

Confirmed Pump / Kit References

Reference Details Notes
Pump 223587 Severe-Duty Displacement Pump Uses leather vee packings including 164477 within the stack.
Pump 223842 Severe-Duty Displacement Pump Uses leather vee packings including 164477 within the stack.
Repair Kit 235635 Packing set for Severe-Duty Displacement Pump Includes leather V-packings corresponding to 164477 (verify by kit contents).

How to Verify Fit Quickly

  • Find your pump model on the machine (engraved tag or manual).
  • Open the parts list for your exact machine or pump; look for the packing stack line items.
  • If you see 164477 (or kit that contains it), the fit is confirmed.

Maintenance Tips

  • Replace when you notice fluid weeping, loss of prime, or increased pump chatter.
  • Inspect rod/piston for scoring; damaged surfaces reduce packing life.
  • Lubricate per manual and torque packing nuts to spec during reassembly.

Frequently Asked Questions

It’s part of a stacked V-packing seal set. The leather rings compress to seal around the rod/piston, reducing leakage and helping maintain output pressure and prime.

Not directly. Many stacks combine different materials (e.g., leather + PTFE). Always rebuild to the exact stack and orientation shown in your pump’s parts list to maintain performance and service life.

Check the pump model installed in your sprayer/rig. If your pump is 223587 or 223842 (or uses Repair Kit 235635 that includes leather V-packings), then 164477 is part of the required packing set.

Persistent leaking at the throat, loss of prime, poor pressure control, or excessive pump noise indicate the packing stack may be worn or misadjusted.

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