Product Information
Description
APC Pump Shaft Seal, 3/4 in Shaft, Buna, Replaces PS-201 (APCAS201)
The common 3/4 in shaft seal for Hayward, Pentair, Sta-Rite and more
APC APCAS201 is a 3/4 in mechanical pump shaft seal, the common PS-201 / AS-201 size. It crosses to Hayward SPX1600Z2, Pentair 354001 / U9-358 and Sta-Rite 17351-0101 among many others, and has a carbon face running against a ceramic seat.
| Brand | APC |
|---|---|
| Part Number | APCAS201 |
| Shaft Size | 3/4 in |
| Seal Type | Two-piece mechanical shaft seal (spring head and ceramic seat) |
| Faces | Carbon against ceramic |
| Elastomer | Buna-N (standard) |
| Industry Size | PS-201 / AS-201 |
| Location | Between the pump seal plate and the impeller |
| Sold As | Each (both seal halves) |
| Install Tip | Replace both halves together and keep the faces clean |
- Hayward pumps using SPX1600Z2
- Pentair / PacFab 354001, 354894, 350002, U9-358, U109358S, U109372SS
- Sta-Rite 17351-0101, 37400-0027S; Purex P28300 / 071278; American Products 395005
- Jacuzzi 100477, 100486, 100487, 10150209; Premier 31812; Swimquip 374070009
- Baker Hydro 385920 / 35B1109, Harmsco 201, Marlow 38592, Martec 320119, Wayne Water 15693, Advance 6C201
How do I install a pump shaft seal?
Turn off power, open the pump and remove the impeller. Press the ceramic seat into the seal plate with the polished face out, then slide the spring half onto the motor shaft or impeller hub. Never touch the polished faces, and don't run the pump dry.
When should I use a Viton seal?
Choose Viton if the pool or spa uses a salt chlorine generator, ozone or peroxide based chemicals. Standard Buna seals are fine for regular chlorine pools.
Additional Info
| Category | Parts Pool Parts Pool Pump Parts |
| SKU | PST-APCAS201 |
| MPN | APCAS201 |
| Replaces | 071278, 100477, 100486, 100487, 10150209, 15693, 173510101, 31812, 320119, 350002, 354001, 354894, 35B1109, 374000027S, 374070009, 38592, 385920, 395005, AS201, P28300, PS-201, SPX1600Z2, U109358S, U109372SS, U9358 |
| Manufacturer | APC |
| Weight | 0.1 lb |
Let customers speak for us
Swapped out broken heater (lasted about 6 years) for this one. The instructions are for the electronics, not for the plumbing. You must get everything perfectly aligned or the plumbing may leak. I needed to loosen the electronics box to get the plumbing perfectly aligned. I have hot water again.
Great prices, fast shipping, great products
Haven't received yet but I'm sure it'll be great
Ordered on Saturday and we're delivered by Tuesday! Great products and great prices!
PST pool supplies are great to work with. I was having trouble finding this heat exchanger . Everywhere I looked, it was out of stock or back ordered. I contacted the manufacturer about buying the heat exchanger. They told me I couldn't buy it because I wasn't a dealer. If I was a dealer, they would be able to take the order. And make one, it would take 5 to 8 weeks. I contacted PST they put my order in and I received it in about six weeks. Fantastic people to work with. Thanks Tim
As described original equipment, thanks
Easy. Came quickly. Wish the shipping was free. I paid extra for insured shipping and it wasn’t signature required. Simply left in my mailbox.
My hot tub stopped giving a signal to trigger the heating core. I had to replace a whole motherboard and they had the perfect product and with a couple of screws. It went right right in and worked perfectly.
Worked perfectly to get our pool filter motor back up and running.
Great price and it was the exact fit for my TM26 Filter.
Easy to install it took 20-25 minutes and it was back up and running with no issues!
Work perfect
Same pump and motor I needed for my pool setup and would’ve been great if I didn’t have to tear apart the new one to install old part. Best price I found anywhere too.
Great company to work with!
Came in great condition my kid loves it, fit perfect hes 6 and got a medium.
