Part # 5250-210
Manufacturer Code PS-3867
Dimensions 1.25" L x 1.25" W x 1.25" D
Alternate Part #'s AS-200, PS-1901, PS-200, PS-3867, PS200, PS3867, 35-423-1019, APCPS3867, USSPS3867
This heavy duty pump motor shaft seal is made with carbon graphite, stainless steel and Viton rubber for extra durability and resistance to chemicals. Especially recommended for use on pool and spa pumps connected to a salt chlorine system or ozonator.
This seal can be used on many different makes and models of pumps which can be seen under the "Parts" tab above. Some of the more common pumps include the Pentair Superflo, Challenger and Pinnacle, the Hayward Max-Flo II, Jacuzzi Cygnet, and Aqua Flo Dominator.
Frequently Bought with Shaft Seals
Why should I purchase the heavy duty seal?
The heavy duty shaft seal features carbon graphite, stainless steel, and Viton rubber. The properties of this seal contribute to the resistance of chemical corrosion. This is the best choice for salt chlorine generators or ozonators.
should I replace the seal every time I replace the motor?
Yes we suggest replacing the shaft seal whenever you replace your motor as the old seal sometimes does not mate up properly with the new motor. Also the warranty on the motor is voided is there is leaking to due the seal.
will this fit ao smith 1 hp square flag 56y motor
It will depend on the model of your pump, not your motor. The motor can go to several different model pumps, so would need to know the model of your pump to determine the correct shaft seal.
Which side of the spring loaded piece touches the ceramic disc on the second piece on a ps 3867.?
2 to 4 hrs
Screwdriver, Pliers, Socket Set, Wrench Set
Less than 1 hr
Screwdriver, Nut Drivers
Pump Shaft Seal Heavy Duty (Saltwater Pools) - PS-3867
remove motor from pump per video on inyo. Open pump, remove seal carefully. placing where you will know proper orientation to place new seal. Use the non petroleum shaft lube. (Lubricant 1CC Pillow Pack - LUBE-PP), as new seal is tight and may not let pump shaft rotate without it. It is an easy operation but you really need to watch the video.
1 to 2 hrs
Screwdriver, Nut Drivers, Socket Set, Wrench Set, Strap wrench for impeller removal
When replacing the motor you need to also replace the seal. My pump motor was making a loud screechy noise indicating worn bearings. Also the pump seal was leaking causing water to drip below the pump shaft where it connects to the motor. This leaky seal may have caused the bearing failure.
I upgraded to the tougher salt water seal since my pool is salt water. The previous seal was the “normal” duty seal and had leaked possibly resulting in the motor bearings going bad prematurely.
After disassembly, I pushed out the old portion of the seal from the Pump backing plate Then pushed the new portion in using a lint free cloth to be sure to keep the ceramic surface of the seal clean.
Reattached backing plate to new motor and then pushed on the impeller side of the seal again not touching the ceramic surface. Be sure to put the seal on so that ceramic surfaces of both sides are facing each other.
Screwed on the impeller, reassembled the pump and fired it up. No leaks detected.
Less than 1 hr
Screwdriver, Socket Set
Existing shaft seal was leaking (salt water pool) and found out my previous repair guy did not put in a heavy duty seal for salt water. Ordered the replacement from INYO and had it here in a couple of days. Disconnected the power from the motor, removed the pump faceplate and housing from the motor. Easily removed the diffuser and impeller following the instructional INYO video and replaced the seal shaft. Put everything back together in reverse order and fixed the leak.