Graco 164964 Packing O-Ring
The Graco 164964 Packing O-Ring is a PTFE seal for the intake/packing stack that helps prevent fluid bypass and maintain prime. Use this size only where your parts manual specifies 164964 (or 164-964).
- Part No.: 164964 (aka 164-964)
- Material: PTFE (Teflon)
- Location: Intake/packing stack
- Fit: Graco 30:1 Bulldog pump series
- Tip: Confirm in your model’s exploded diagram before ordering
Seal & Fitment Overview
Compatible Machines
Verified fit based on published parts references. Always confirm against your sprayer’s parts manual before ordering.
- Graco 30:1 Bulldog pump series – intake valve packing location (uses this O-ring)
Overview
The Graco 164964 Packing O-Ring is a PTFE (Teflon) sealing ring used in high-pressure pump sections to prevent fluid bypass and maintain prime. Typical installation is within the intake/packing stack of compatible Graco pump assemblies.
Key Specifications
| Attribute | Detail |
|---|---|
| Graco Part No. | 164964 (also written as 164-964 in some catalogs) |
| Type | Packing O-Ring / sealing ring for pump intake/packing stack |
| Material | PTFE (Teflon) |
| Approx. Size | ~2.3″ OD × ~2.25″ ID × ~0.10″ thickness (reference size; confirm in your manual) |
| Typical Use | Prevents leakage and maintains pressure/prime in the fluid section |
Why this O-Ring
- PTFE construction for chemical resistance and low friction
- Designed for high-pressure airless pump environments
- Supports consistent sealing to reduce pulsation and loss of prime
Fitment Guidance
For models beyond those listed above, verify by checking the exploded parts diagram of your exact sprayer/pump. Look for the intake/packing stack callout referencing part 164964 (or 164-964).
Frequently Asked Questions
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