Hydra part 870-006 is a replacement washer used on Hydra M and Hydra Pro Super sprayers. This washer serves as a critical sealing or spacing component in various assemblies, including fluid sections, valves, or mounting points. Replacing a worn, flattened, or missing washer restores proper sealing, maintains correct clearances, and prevents fluid leaks or loosening of fasteners.
| Part Number | 870-006 |
|---|---|
| Part Description | Washer |
| Brand | Hydra |
| Fits | Hydra M 2000 and 4000, Hydra Pro Super |
| Condition | New |
The Hydra 870-006 Washer is a genuine OEM replacement component used in critical areas of Hydra M and Hydra Pro Super sprayers. It may function as a seal washer to prevent fluid leaks, a load‑distributing washer under fasteners, or a spacer to maintain proper component alignment. Regardless of its specific application, using the correct washer ensures that assemblies remain secure, leak‑free, and operate as designed.
Over time, washers can become crushed, flattened, or corroded, especially in high‑pressure fluid sections or areas exposed to harsh chemicals. A damaged or missing washer can lead to fluid seepage, loosening of hardware, or improper clearances that affect sprayer performance. Replacing worn washers with genuine Hydra parts restores proper sealing, clamping force, and reliability.
| Seals fluid connections | Prevents leaks at joints, valves, or fittings |
|---|---|
| Distributes clamping load | Evenly spreads fastener torque to protect components |
| Maintains clearances | Provides correct spacing for moving parts or assemblies |
| Flattened / crushed | Washer no longer provides effective seal or spacing |
|---|---|
| Corroded / damaged | Rust or physical damage compromises integrity |
| Missing washer | Washer absent from assembly |
| During component rebuild | Always install new washers when servicing fluid sections or bolted joints |
Part 870-006 is compatible with the following Hydra sprayers. Always verify fitment using the correct parts diagram for your exact model and serial number.
| Model | Component Application |
|---|---|
| Hydra M 2000 | Various washer locations |
| Hydra M 4000 | Various washer locations |
| Hydra Pro Super | Various washer locations |
When replacing a washer, it is common to inspect and replace associated seals, fasteners, and components.
If the washer is part of a fluid seal, replace any accompanying O‑rings or gaskets.
If the fastener was loose or corroded, consider replacing it as well.
For washer failure in the pump, inspect valves, packing, and other seals.
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