

Genuine Graco 165053 Packing O-Ring that seals intake/pump interfaces to prevent leaks and maintain stable pressure.
Ideal for routine pump service or rebuilds—please confirm fitment in your unit’s parts manual.
The Graco 165053 Packing O-Ring is used as a sealing element in select proportioner and pump assemblies. Confirm against your unit’s parts manual before purchase.
Packing O-ring used to maintain seal integrity and prevent fluid leaks in pump/intake valve areas on applicable systems. Typical use is during routine maintenance or rebuilds where sealing performance has degraded.
| Part Number | 165053 |
|---|---|
| Item Type | Packing O-ring (seal) |
| Typical Location | Intake valve / pump sealing point (varies by model) |
| Function | Seals to maintain pressure and prevent fluid bypass/leakage |
| Compatibility Check | Verify in your machine’s parts manual by model and serial |
| Packaging | Sold individually (qty per assembly depends on model) |
| Frequently Asked Questions | |
|---|---|
| Will this fit my exact machine? | Possibly. The models listed above are common families where this part appears. Confirm in the official parts breakdown for your specific model/serial. |
| Where is it used? | Typically in the intake valve or related pump sealing points, depending on the assembly design. |
| What material is it? | Vendors describe it as an O-ring packing used for sealing. Always check material compatibility with your fluid and consult the manual if unsure. |
| How many do I need? | Quantity varies by assembly; the parts diagram for your unit will specify exact count and placement. |
| Any install best practices? | Use compatible lubricant, avoid twisting during install, and verify with a leak/pressure test after reassembly. |
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