Graco 112553 Packing O‑Ring – Description & Compatibility
The Graco 112553 Packing O‑Ring is a genuine Graco replacement seal designed for sealing fluid or packing sections of Graco equipment. It functions as a high‑quality O‑ring/packing component to help maintain pressure, prevent leaks, and ensure proper fluid flow and integrity in compatible systems.
Compatible Machines
- Graco airless sprayer pumps (various models) – check your pump lower assembly for part number 112553
- Graco proportioner or high‑pressure coating pumps where “Packing, O‑ring 112553” is listed in the parts diagram
- Any Graco machine that references part number 112553 in its service/parts manual under packing or O‑ring section
Please verify the part number in your machine’s parts diagram to ensure correct fitment.
Key Features
| Part Number |
112553 |
| Item |
Packing, O‑Ring |
| Weight |
Approx. 0.018 lbs |
| Dimensions |
~ “+X+.2.4 × +.2.4 in” (as per supplier listing) |
| Brand |
Graco |
Installation & Use Notes
When installing the 112553 Packing O‑Ring:
- Ensure the machine model is compatible and lists part 112553 in its parts list.
- Check the old O‑ring’s inner and outer dimensions, cross‑section and material to match the new one.
- Confirm the fluid being handled is compatible with the O‑ring’s material (fluids, chemicals, coatings, etc.).
- When replacing, clean the sealing surfaces, inspect the packing chamber for wear, and lubricate O‑ring if required by the machine manual.
- After installation, run the machine under controlled conditions and check for leaks or pressure drop to verify proper seal.
Frequently Asked Questions
The 112553 O‑Ring fits those Graco machines whose parts diagram lists “Packing, O‑Ring – part 112553”. Because Graco uses many different pump assemblies and machine platforms, you must check your specific model’s parts list for confirmation.
It is a genuine Graco part, but whether it replaces an older version depends on your machine’s design. If your machine’s manual lists an earlier part number, consult Graco or a distributor to verify interchangeability.
< steps to verify:
- Find your machine’s model number (on the nameplate or manual).
- Locate the parts list or manual and look for part 112553 or “Packing, O‑Ring”.
- Check dimensions and material match the original seal.
- If still unsure, contact Graco support or an authorized distributor with your machine details.
Disclaimer: Information provided here is for general reference only. Always verify part compatibility with your machine’s model, serial number, and authorized service manual.
