💧 Shaft Seal, Waterco/Jandy, 3/4″ Shaft, Buna, Generic
Made by Waterco, manufacturer part number 634016. It is listed for the equipment shown below, so check the model on your own unit against that list.
📏 Specifications
| Specification | Value |
|---|---|
| Brand | Waterco |
| Manufacturer part number | 634016 |
| Pump Model | SupaTuf |
| Shaft Seal Head Type | B |
| Pump Manufacturer | Waterco |
| Quality/Material | Good – Buna Graphitic Plastic |
| Shaft Size | 3/4″ |
| Seal Outside Diameter | 1-9/16″dia |
| Seal Height | 51/64″ |
| Mating Ring Diameter | 1-3/8″dia |
| Mating Ring Thickness | 13/32″ |
| US Seal Basic Equivalent | PS-601 |
| Catalog description | Shaft Seal, Waterco/Jandy, 3/4″ Shaft, Buna, Generic |
✅ Listed for
- Waterco HydroStorm Pool Pump
- Waterco AquaMite/SupaMite Series Above Ground Pool Pump
- Waterco HydroStorm Plus Pool Pump
- Jandy MHP & MHPU Pumps
- Jandy HHP & HHPU Pumps
Exploded parts diagrams: This part is shown as item #3 on the Waterco SupaTuf Series Self Priming In-Ground Pool Pump; item #4 on the Waterco HydroStar (2-1/2″) Self Priming Semi-Commercial Pump; item #3 on the Waterco SupaStream Series Self Priming In-Ground Budget Pump exploded parts diagrams.
🔧 Waterco SupaTuf Series Self Priming In-Ground Pool Pump – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| 20 | 34-252-W001K20 |
| 19 | 34-252-W001K19 |
| 18 | 34-252-W001K18 |
| 17 | Pump Stand, Waterco SupaTuf/SupaStream |
| 16 | Bolt, Waterco SupaTuf/HydroStorm/SupaStream, 1/4-20 x 1" |
| 15 | Washer, Waterco SupaTuf/HydroStorm/SupaStream, 1/4" |
| 14 | Cover Nut, Waterco 1-1/2" Top/Side Mount Valves |
| 13 | 34-252-W001K13 |
| 12 | 34-252-W001K12 |
| 11 | Trap Lid, Waterco SupaTuf/HydroStorm, 6-3/4", Without O-Ring |
| 10 | Half Union, 2", with O-Ring |
| 9 | 34-252-W001K9 |
| 8 | Drain Plug, Waterco HydroStorm/Plus |
| 7 | Square Ring, Waterco HydroStorm/HydroStar/SupaTuf, Diffuser |
| 6 | Screw, Waterco Various Pumps, Diffuser |
| 5 | Diffuser, Waterco SupaTuf |
| 4 | 34-252-W001K4 |
| 4A | O-Ring, 2-3/8" ID, 3/16" Cross Section, Generic |
| 3 | Shaft Seal, Waterco/Jandy, 3/4" Shaft, Buna, Generic ◀ this part |
| 2 | 34-252-W001K2 |
| 1 | Seal Plate, Waterco SupaTuf |
🔧 Exploded diagram and parts
This part belongs to the Waterco SupaTuf Series Self Priming In-Ground Pool Pump assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
Complete motors
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 20 | ![]() |
Motor, Century, 1.5hp, 115v/230v, 1-Spd, 56Yfr, SQFL, Full Rate | B2858 | 14 in stock | $515.45 | Add to cart |
| 20 | ![]() |
Motor, Century, 2.0hp, 230v, 1-Spd, 56Yfr, SQFL | B2748 | Available to order | $657.64 | |
| 20 | ![]() |
Motor, Century, 3.0hp, 208v-230v, 1-Spd, 56Yfr, SQFL, EE | B2844 | Available to order | $612.44 | Add to cart |
| 20 | ![]() |
Motor, Century, 208v-230v, Var-Spd, 48fr, SQFL, V-Green | ECM16SQU | Available to order | $839.25 | |
| 20 | ![]() |
Motor, US Motor, 1 Hp 115/230v SQFL | ASB848 | 20 in stock | $244.15 | Add to cart |
| 20 | ![]() |
Motor, US Motor, 1-1/2 Hp 115/230v SQFL | ASB858 | 8 in stock | $354.65 | Add to cart |
| 20 | ![]() |
Motor, US Motor, 3.0hp, 208-230v, 56YFr, SQFL, Full Rate, PE | ASB844 | 11 in stock | $405.54 | Add to cart |
| 20 | ![]() |
Motor, US Motor, 0.75hp, 115/230v, 56YFr, SQFL, Full Rated | ASB847 | 11 in stock | $180.76 | Add to cart |
| 20 | ![]() |
Motor, US Motor, 2.0hp, 230v, 56YFr, SQFL, Full Rated | ASB748 | 6 in stock | $430.35 | Add to cart |
Parts that go with this
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
![]() |
Shaft Seal, 601, 3/4" Shaft, Buna | 601 | 3 in stock | $0.73 | Add to cart |
![]() |
Generic Pump Seal PS-3986 | PS-3986 | 97 in stock | $34.93 | Add to cart |


































