Graco 167971 Piston Seal Replacement Part
The Graco 167971 Piston Seal is a genuine OEM sealing component used inside Graco pump assemblies to maintain proper piston pressure and prevent internal leakage. It ensures smooth pumping performance and reliable spray output.
Compatible Machines
Always verify your sprayer or pump parts manual to confirm it lists part number 167971 before ordering. This seal is commonly used in select Graco industrial and fluid-handling pump systems.
- Graco pump assemblies listing part 167971
- Graco paint and coating displacement pump models
- Some Graco airless sprayer units using compatible piston pump modules
Product Details
| Part Number | 167971 |
| Part Description | Piston Seal |
| Category | Graco Pump Sealing Component |
| Replaces / Alternative | Bedford 16-1184 (aftermarket equivalent) |
| Primary Function | Seals piston area to prevent fluid bypass and pressure loss |
Key Benefits
- Helps maintain proper coating and paint spray pressure
- Reduces internal pump leakage and extends service life
- OEM quality fit for reliable long-term performance
- Smoother pumping performance and spray consistency
Installation Notes
- Always depressurize system before servicing
- Clean piston and cylinder walls before installing the new seal
- Lubricate seal lightly for easier installation and proper seating
- Test for leaks and verify spray pressure after reassembly
Frequently Asked Questions
It provides a sealed barrier around the piston to prevent coating or paint from bypassing, ensuring reliable pressure and spray performance.
Confirm that your Graco sprayer or pump parts manual lists part number 167971. If your pump uses a direct replacement such as Bedford 16-1184, this seal may also be compatible.
Replace the seal if you notice pressure loss, internal leakage, reduced spray output, or after major pump rebuild intervals recommended in your maintenance schedule.
