Graco 164656 Vee Leather Pump Packing Seal
Graco 164656 — Vee Leather Pump Packing Seal for displacement-pump stacks. Use where the pump parts diagram specifically calls out 164656 to maintain prime and pressure.
- Part #: 164656 (also written 164-656)
- Material: Leather V-packing for rod/piston sealing
- Location: Lower pump packing stack (wet-cup area)
- Fits: Select Graco sprayers; verify your pump diagram lists 164656
- Replace if: Fluid weeping at wet cup, loss of pressure, frequent re-priming
Overview & Compatibility Guidance for Graco 164656 V-Packing
Compatible Machines (verify by pump section)
This Vee Leather Pump Packing Seal (p/n 164656) is used in the displacement-pump section on select professional Graco airless units that explicitly list 164656 in their parts diagram. Always confirm by checking your machine’s pump/exploded view.
- Ultra / Ultra Max contractor pumps – older displacement-pump versions that specify 164656 in the rod/piston packing stack (check your manual)
- Ultra Max II 695 / 795 / 1095 / 1595 – select earlier pump sections calling out 164656 (verify by model year & pump serial)
- GMAX / GMAX II gasoline series – units whose pump parts list shows 164656 leather V-packing (confirm on the pump’s parts page)
- Other legacy Graco displacement-pump sprayers where the packing set lists 164656 (material: leather)
What this part is
The Graco 164656 is a V-packing made of leather. It installs in the lower pump’s packing stack (rod/piston area) to seal under reciprocating motion, helping prevent fluid bypass and maintain prime/pressure.
Key points
- Material: Leather V-packing for classic/legacy Graco pump stacks
- Function: Seals the displacement rod/piston to minimize leakage and maintain performance
- Placement: Part of the lower packing set—orientation matters during installation
- When to replace: Loss of pressure, fluid weeping at the wet cup, or frequent re-priming needs
Specs & Cross-Reference
| Attribute | Detail |
|---|---|
| Part Number | 164656 (also styled as 164-656) |
| Description | Vee Leather Pump Packing Seal (V-packing; leather) |
| Fits | Displacement-pump stacks on select Graco professional sprayers (must be listed as 164656 in the pump parts diagram) |
| Typical Location | Lower pump assembly (rod/piston seal stack) |
| Replaces/Alt | Use only where the manual calls out 164656; not a universal substitute for PTFE/UHMW packings |
Frequently Asked Questions
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