Waterco HydroStorm Seal Plate | Part #63402011
Product Overview
As a retailer of hot tub spare parts, I supply this essential seal plate component specifically engineered for the Waterco HydroStorm pump series. This crucial part maintains the watertight barrier between the pump’s wet end and the motor housing, ensuring reliable operation and protecting your pump investment.
Key Features and Benefits
- Manufactured to precise Waterco specifications
- Heavy-duty thermoplastic construction for long-term durability
- Superior sealing design minimizes maintenance requirements
- Direct replacement for original equipment
- Engineered for optimal pump efficiency
- Corrosion and chemical resistant
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 63402011 |
| Material | High-grade thermoplastic |
| Compatibility | Waterco HydroStorm Series |
| Construction | One-piece design |
| Seal Type | Mechanical |
| Color | Black |
| Installation Type | Bolt-mounted |
| Application | Residential/Commercial |
Exploded parts diagram: This part is shown as item #19 on the Waterco HydroStorm Pool Pump exploded parts diagram.
🔧 Waterco HydroStorm Pool Pump – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| – | Washer, Waterco SupaTuf/HydroStorm, 3/8" |
| 22d | 34-252-W003K22D |
| 22c | 34-252-W003K22C |
| 22b | 34-252-W003K22B |
| 22a | 34-252-W003K22A |
| 21 | Bolt, Waterco HydroStorm, 3/8" x 3/4" |
| 20 | Bolt, Waterco HydroStorm, 18-8 x 1/4" |
| 19 | Seal Plate, Waterco HydroStorm ◀ this part |
| 18 | 34-252-W003K18 |
| 17 | 34-252-W003K17 |
| 16 | 34-252-W003K16 |
| 15 | 34-252-W003K15 |
| 14 | 34-252-W003K14 |
| 13 | 34-252-W003K13 |
| 12 | Pump Stand, Waterco HydroStorm |
| 11 | Nut, Waterco SupaTuf/HydroStorm/SupaStream, 1/4-20 |
| 10 | 35-252-1060 |
| 9 | 34-252-W003K9 |
| 8 | Drain Plug, Waterco HydroStorm/Plus |
| 7 | 35-252-1191 |
| 6 | 34-252-W003K6 |
| 5 | 34-252-W003K5 |
| 4 | Half Union, 2", with O-Ring |
| 3 | 34-252-W003K3 |
| 2 | O-Ring, Waterco HydroStorm, Lid |
| 1 | Trap Lid, Waterco SupaTuf/HydroStorm, 6-3/4", Without O-Ring |
Installation and Maintenance
The HydroStorm seal plate is designed for straightforward installation, mounting directly to the motor flange with standard bolts. Regular inspection during routine maintenance helps prevent water ingress and ensures continued optimal performance of your pump system.
Compatibility
This seal plate is designed for use with:
- Waterco HydroStorm Pool Pumps
- Waterco HydroStorm ECO Pumps
- Various HydroStorm commercial applications
Performance Features
The seal plate’s precision-engineered design provides:
- Optimal alignment with pump impeller
- Enhanced motor protection
- Improved pump efficiency
- Reduced operational noise
- Extended pump lifespan
Note: Always confirm part compatibility with your specific pump model before installation











