💧 Washer, Waterco HydroStar, Impeller, Fiber
Made by Waterco, manufacturer part number WC644772.
📏 Specifications
| Specification | Value |
|---|---|
| Brand | Waterco |
| Manufacturer part number | WC644772 |
| Inside Diameter | 1/4″ |
| Outside Diameter | 9/16″ |
| Thickness | 1/32″ |
| Washer Material | Fiber |
| Catalog description | Washer, Waterco HydroStar, Impeller, Fiber |
Exploded parts diagrams: This part is shown as item #22 on the Waterco HydroStar (2-1/2″) Self Priming Semi-Commercial Pump; item #15 on the Waterco HydroStorm Plus Pool Pump exploded parts diagrams.
🔧 Waterco HydroStar (2-1/2") Self Priming Semi-Commercial Pump – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| – | Tool, Klorkinator, Lid/Cover Removal Tool |
| 24d | 34-252-W005K24D |
| 24c | 34-252-W005K24C |
| 24b | 34-252-W005K24B |
| 24a | 34-252-W005K24A |
| 23 | Screw, Waterco HydroStar, Impeller |
| 22 | Washer, Waterco HydroStar, Impeller, Fiber ◀ this part |
| 21 | Screw, Waterco AquaMite/SupaMite, 3.0hp Diffuser |
| 20 | O-Ring, Buna-N, 3" ID, 1/8" Cross Section, Generic |
| 19 | 34-252-W005K19 |
| 18 | 34-252-W005K18 |
| 17 | 34-252-W005K17 |
| 16 | Pump Stand, Waterco HydroStar |
| 15 | Motor Support, Waterco HydroStar |
| 14 | 35-252-1234 |
| 13 | 34-252-W005K13 |
| 12 | Gasket, Waterco HydroStar, Drain Plug, 1/2"ID, 7/8"OD |
| 11 | Drain Plug, Waterco |
| 10 | Trap Lid, Waterco HydroStar |
| 9 | O-Ring, 7-3/4" ID, 3/16" Cross Section, Generic |
| 8 | Basket, Pump, OEM Waterco Hydrostar |
| 7 | Union Adapter, 2-1/2" Buttress Thread x 2" Slip |
| 6 | 34-252-W005K6 |
| 5 | 34-252-W005K5 |
| 4 | Shaft Seal, Waterco/Jandy, 3/4" Shaft, Buna, Generic |
| 3 | Gasket, Waterco HydroStar, Seal Plate |
| 2 | Seal Plate, Waterco HydroStar |
🔧 Exploded diagram and parts
This part belongs to the Waterco HydroStar (2-1/2") Self Priming Semi-Commercial Pump assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
Complete tools
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
![]() |
Tool, Klorkinator, Lid/Cover Removal Tool | KW-212 | 7 in stock | $106.95 | Add to cart |
Complete motors
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 24 | ![]() |
Motor, Century, 208v-230v, Var-Spd, 48fr, C-Face Thd, V-Grn | ECM16CU | Available to order | $637.64 |
Complete motors
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 24 | ![]() |
Motor, Century, 0.75hp, 115v/230v, 1-Spd, 56Jfr, C-Face Thd, EE | B638 | Available to order | $321.73 | |
| 24 | ![]() |
Motor, Century, 1.0hp, 115v/230v, 1-Spd, 56Jfr, C-Face Thd, EE | B654 | 3 in stock | $498.99 | Add to cart |
| 24 | ![]() |
Motor, Century, 1.5hp, 115v/208-230v, 1Spd, 56Jfr, C-Face Thd, EE | B796 | 6 in stock | $455.70 | Add to cart |
| 24 | ![]() |
Motor, Century, 2.0hp, 208v-230v, 1-Spd, 56Jfr, C-Face Thd, EE | B809 | 1 in stock | $673.28 | Add to cart |
| 24 | ![]() |
Motor, Century, 3.0hp, 208v-230v, 1-Spd, 56Jfr, C-Face Thd, EE | B818 | Available to order | $681.69 | |
| 24 | ![]() |
Motor, Century, 3.0hp, 208v-230v, 1-Spd, 56Jfr, C-Face Thd, EE | ST1302V1 | Available to order | $927.64 | Add to cart |
Complete motors
Show 4 complete motors we stock
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 24 | ![]() |
Motor, Century, 0.75hp, 115v, 2-Spd, 56Jfr, C-Face Thd | B2973 | 2 in stock | $349.21 | Add to cart |
| 24 | ![]() |
Motor, Century, 1.0hp, 230v, 2-Spd, 56Jfr, C-Face Thd | B2975 | 2 in stock | $613.00 | Add to cart |
| 24 | ![]() |
Motor, Century, 2.0hp, 230v, 2-Spd, 56Jfr, C-Face Thd | B2979 | 3 in stock | $795.03 | Add to cart |
| 24 | ![]() |
Motor, Century, 3.0hp, 230v, 2-Spd, 56Jfr, C-Face Thd | B966 | 2 in stock | $921.00 | Add to cart |
Complete motors
Show 8 complete motors we stock
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 24 | ![]() |
Motor, Century, 0.75hp, 115v/230v, 1-Spd, 56Jfr, C-Face Thd | B127 | 8 in stock | $326.81 | Add to cart |
| 24 | ![]() |
Motor, Century, 1.0hp, 115v/230v, 1-Spd, 56Jfr, C-Face Thd | B128 | 9 in stock | $400.06 | Add to cart |
| 24 | ![]() |
Motor, Century, 1.5hp, 115v/230v, 1-Spd, 56Jfr, C-Face Thd | B129 | 6 in stock | $534.33 | Add to cart |
| 24 | ![]() |
Motor, Century, 2.0hp, 208v-230v, 1-Spd, 56Jfr, C-Face Thd | B836 | 6 in stock | $540.88 | Add to cart |
| 24 | ![]() |
Motor, Century, 3.0hp, 230v, 1-Spd, 56Jfr, C-Face Thd | B131 | 4 in stock | $913.64 | Add to cart |
| 24 | ![]() |
Motor, Century,0.75hp,115v/230v,1-Spd,56Jfr,C-Face Thd | ST1072 | 3 in stock | $326.81 | Add to cart |
| 24 | ![]() |
Motor, Century, 1.0hp, 115v/230v, 1-Spd, 56Jfr, C-Face Thd | ST1102 | 18 in stock | $298.63 | Add to cart |
| 24 | ![]() |
Motor, Century, 2.0hp, 208v-230v, 1-Spd, 56Jfr, C-Face Thd | ST1202 | Available to order | $364.78 |
















































