Product Overview – Graco 108877 Packing O‑Ring
This is the genuine OEM Graco 108877 Packing O‑Ring. It’s designed as a sealing component within Graco fluid‑handling or spray systems, helping to prevent leaks, maintain pressure integrity and ensure reliable operation.
Compatible Machines
Based on available listings, this part number is generic and the exact model fitment list is not officially published. One listing shows it under “Packing O‑Ring – 108877” for Graco equipment. :contentReference[oaicite:0]{index=0}
When verifying compatibility, always cross‑check your machine’s parts diagram or service manual. To aid your check, here are key details:
| Part Number |
108877 |
| Type |
Packing O‑Ring (seal for pump or fluid section) |
| Typical Use |
Installed in internal gland or seal‑groove of a Graco pump or fluid handling module |
| Important Note |
Compatibility must be verified by machine model & serial – this is not a confirmed “fits all” list |
Key Features & Benefits
- OEM sealing ring from the manufacturer – ensures proper fit and performance.
- Helps maintain system pressure and prevent leakage in fluid/pump assemblies.
- Ideal part to keep on hand for preventive maintenance or when servicing your Graco equipment.
Installation & Service Tips
- Before replacing the O‑ring: fully depressurize the system and flush out any residual fluid to prevent injury.
- Inspect the groove and seating surfaces for wear, burrs or damage — a compromised groove will shorten seal life.
- Lightly lubricate the O‑ring if recommended by the machine manual (e.g., compatible lubricant) to ease installation and reduce damage during fit‑in.
- After installing, run the machine at low pressure initially and check for leaks — warranted fit = no seepage around that joint.
Frequently Asked Questions
The O‑ring creates a seal within the pump or fluid module to prevent internal leakage of coatings or fluids, maintain proper pressure, and ensure reliable operation of the system.
Check your machine’s parts breakdown or manual for part number 108877 and locate where this O‑ring is installed. Compare groove dimensions (OD/ID and cross‐section) and ensure the pump/gland design matches. If your manual lists a different part number, use that one instead.
The exact elastomer or material of part 108877 is not specified in the listing. For chemical‐intensive applications, confirm with your supplier or Graco parts manual whether standard nitrile, fluoroelastomer or a PTFE composite version is needed.
