Graco 108874 Packing O-Ring – Overview
The Graco 108874 Packing O-Ring is a genuine OEM seal designed to maintain high-pressure fluid integrity within Graco piston and displacement pumps. It prevents leaks, ensures smooth pump operation, and is included in several pump repair kits.
Compatible Machines
Part 108874 is included in repair kits for the following Graco pump series and models:
- 400 Series Pumps: Models 220663, 220666
- 1200 Series Pumps: Models 220664, 220667, 237009, 237012
- 2500 Series Pumps: Models 220665, 220668, 237010, 237013
Key Features
- OEM-grade quality: Factory-original Graco part for reliable fit and durability.
- Material: Buna-N (nitrile) elastomer suitable for high-pressure pump environments.
- Leak prevention: Ensures internal pump sealing and fluid containment.
- Included in repair kits: Used in 400, 1200, and 2500 Series pump rebuild kits.
Why Choose the 108874 Packing O-Ring?
Using the correct Graco O-Ring helps maintain pump performance and reliability:
- Correct fit: Engineered for Graco pumps, ensuring proper seal and smooth operation.
- System integrity: Reduces risk of leaks and fluid bypass.
- Long-term reliability: Supports pump longevity and prevents premature wear.
- OEM support: Using genuine parts ensures compatibility with Graco repair kits and service manuals.
Installation & Maintenance Tips
- Depressurize and lock out the pump before replacing the O-Ring.
- Ensure the O-Ring is correctly seated in the packing gland to prevent leaks.
- Inspect during routine maintenance and replace any worn or damaged O-Rings.
- Use only recommended lubricants or installation aids compatible with Buna-N.
Frequently Asked Questions
The 108874 Packing O-Ring is made from Buna-N (nitrile) elastomer, suitable for high-pressure pump environments and resistant to many fluids typically handled by Graco pumps.
No, this O-Ring is specifically designed for certain Graco pump models in the 400, 1200, and 2500 Series. Compatibility must be verified using your pump model and serial number.
Genuine Graco O-Rings ensure correct fit, material compatibility, and pressure resistance. Using the OEM part helps maintain pump reliability, performance, and eligibility for official repair kits.
