Graco 166205 Coupling Ring
The Graco 166205 Ring Coupling is an OEM locking ring for the fluid section. Use it to maintain seal compression and alignment in high-pressure operation.
- Part No: 166205 (Ring, Coupling)
- Function: Secures adjoining fluid-section components
- Quality: Genuine OEM fit and durability
- Includes: Ring only (no seals/hardware)
- Verify: Match to your model’s parts diagram before ordering
Overview & Key Details
The Graco 166205 Ring Coupling is an OEM coupling ring used to secure mating components in the fluid section assembly of select Graco spray equipment. Use it to maintain correct clamping force, sealing integrity, and alignment within the pump/housing interface.
Compatible Machines
A specific model list is not published for this part. Please confirm by checking your sprayer’s parts diagram for item “Ring, Coupling” with part number 166205.
Specifications
| Part Number | 166205 |
|---|---|
| Item Name | Ring, Coupling |
| Brand | Graco (Genuine OEM) |
| Primary Function | Locks/retains adjoining fluid-section components to maintain seal compression and alignment under pressure. |
| Typical Location | Fluid section / pump housing interface (see your model’s exploded view). |
| Fitment Note | Match by model + serial and verify the exact item number in your parts manual before ordering. |
Product Description
Designed for durability in high-pressure applications, this coupling ring helps preserve sealing integrity and prevents micro-movement that could lead to leaks or premature wear. Using the correct OEM ring supports long service life and reliable performance of the fluid section assembly.
Key Benefits
- Maintains proper clamp force on fluid-section interfaces.
- Helps prevent leaks by keeping seals correctly compressed.
- Supports alignment to reduce vibration and wear.
- OEM quality for consistent fit and longevity.
Fitment Guidance
- Check the exploded parts diagram for your exact sprayer model.
- Confirm the part number printed in the manual matches 166205.
- If your manual specifies a different number, use that exact number instead.
Frequently Asked Questions
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