Key fit and spec highlights for Graco 164555 PTFE V-Packing. Verify your pump revision in the parts manual before ordering.
The Graco 164555 is a PTFE V-Packing used to seal the pump rod/throat in many professional airless sprayers. PTFE offers low friction and chemical resistance for longer service life.
Based on distributor/repair references for 164555 V-Packing, it is commonly used in these series. Always verify with your unit’s parts manual and pump revision before ordering.
| OEM Part | Graco 164555 (sometimes shown as 164-555) |
|---|---|
| Type / Material | V-Packing, PTFE (Teflon) |
| Function | Seals around pump rod/piston to prevent leakage and maintain pressure |
| Typical Location | Throat/rod packing stack in displacement pump assembly |
| Install Note | Orient V-packing lips correctly per service manual; clean/inspect rod & seat before assembly |
| Question | Answer |
|---|---|
| What does a PTFE V-Packing do? | It forms a low-friction, chemical-resistant seal around the pump rod/piston to reduce leakage and maintain operating pressure. |
| Will 164555 fit my Ultra Max II? | Often yes for 695/795/1095/1595 series, but you must confirm against your pump’s parts diagram and revision to be certain. |
| Any installation tips? | Install packings in the specified order/orientation (V-lips facing the correct direction). Lightly lubricate as directed and inspect the rod and seat for wear before reassembly. |
| Signs a packing is worn? | Fluid leakage at the throat, pressure loss, chatter, or frequent prime issues typically indicate packing wear. |
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