201c Mechanical Seal (PS-201) — 3/4″ | Hayward Super Pump & Pentair IntelliFloXF Pool Pumps

ps-100 , ps-200 , ps-201 mechanical seal

201c Mechanical Seal (PS-201) — 3/4″ | Hayward Super Pump & Pentair IntelliFloXF Pool Pumps

Weight	.25 lbs
Dimensions	1 × 1 × 1.25 in

Title	Quantity	Price Per Unit
Pool Pumps - 201c	1 - 24	0% $4.20
Pool Pumps - 201c	25 - 49	6% $3.95
Pool Pumps - 201c	50 - 99	12% $3.70
Pool Pumps - 201c	100 - 499	18% $3.44
Pool Pumps - 201c	500 +	24% $3.19

QTY	Price
201c Mechanical Seal (PS-201) — 3/4" \| Hayward Super Pump & Pentair IntelliFloXF Pool Pumps quantity	$4.20

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DESCRIPTION

Mechanical Seal 201c — Type 166 (3/4″) | PS-201

Equal to industry standard 201 / PS-201. Direct-fit replacement for PS-201 single-spring seals in pool/spa and small-pump applications. Engineered with molded carbon/ceramic faces and Buna-N elastomers.

At-a-glance specs: 3/4″ shaft • 1.375″ × 0.406″ cup seat • Type 166 • Molded carbon/ceramic faces • Buna-N elastomers

Fits: Hayward Super Pump®, Super Pump II, Super Pump VS and the original Max-Flo (SPX1600Z2), Pentair IntelliFloXF® and SuperFlo® VST (17351-0101S), Sta-Rite Dura-Glas® II, Max-E-Glas™ II, Max-E-Pro® and Dyna-Pro®, plus Pac-Fab, American Products, Purex, Swimquip and Jacuzzi pool and spa pumps. The standard Pentair IntelliFlo takes the PS-1000; Pentair SuperFlo / SuperFlo VS and Hayward Max-Flo II take the PS-200.

Same seal, same size, same fit — what changes is the material and how it’s built. All five seals below are the PS-201 for a 3/4″ shaft, and all five fit the same pumps. They differ in two ways. The build: a molded carbon face or a premium carbon face machined from solid stock. The materials: a ceramic or silicon carbide seat, and Nitrile or Viton rubber. Pick the one that suits your water.

Seal	Material	Best For This Water
201c	Molded carbon face, ceramic seat, Nitrile rubber	Normal chlorine, normal temperature, clear water. The standard build for a home pool or spa.
201cv	Molded carbon face, ceramic seat, Viton rubber	Saltwater or higher chlorine, and warmer water. Viton holds up where standard Nitrile hardens and cracks.
851	Machined premium carbon face, ceramic seat, Nitrile rubber	Saltwater pools with a chlorine generator, commercial pools, or any pump that runs most of the day.
3868	Machined premium carbon face, ceramic seat, Viton rubber	High chlorine and hot water — heated spas, therapy pools, heavy commercial duty.
201cvss	Silicon carbide face and seat, Viton rubber	Sandy, dusty or gritty water, or any pump where seals keep failing early. The hardest faces we offer.

Rebuilding a Hayward Super Pump or Super II?Get this 201c seal in a complete kit with both gaskets — choose Standard – Carbon/Ceramic/Nitrile (201c) from the kit drop-down.

Doing the job yourself? Read How to Replace a Mechanical Pump Seal.

Please click “specifications” below for OEM numbers and Pump Nameplate Data

SPECIFICATIONS
Cross references & alternative part numbers

OEM numbers: SJ-47 , MS-756B , 395005 , 5MCD5 , S05646 , S20791 , S20792 , S21962 , 17039 , 1S-5039 , 1661 , 47406 , 60985AA , 6513207 , 126544 , 126545 , 10150209 , 292-5040-00-3 , SPX1600Z2 , SPX1600Z2G , A-75911 , 10-120, 10-477 , 10-486 , 10-1390-04 , 10-1502-09 , 1661 , 72344 , 38592000000 , 6070-0 , 240170 , MS17 , 354001 , K101-1 , 91909719 , 13110 , 14017122 , 31- 812 , 071728 , 76-129, 76-189 , X7718 , 12-023 , 601 , 601A , 101.000.102 , U109-358SS , U109-372SS , 17351-0101 , 37407-0009 , 25062 , 5P411 , 5P412 , 1R313 , P-11201 , 152243-B , 15693, 56105

Brands: AERMOTOR PUMPS (A PENTAIR Brand) , AMERICAN PRODUCTS , A.Y. McDONALD MFG. COMPANY , BERKELEY PUMPS (A PENTAIR Brand) , BRADEN WINCH (A PACCAR COMPANY) , BURKS® PUMPS , CARTER PUMPS, INC. , CARVER PUMP COMPANY , C-B TOOL COMPANY , CRANE-DEMING (Division of CRANE PUMPS & SYSTEMS) , DOMESTIC PUMP , DOUGLAS MOTOR CORPORATION , EAST SIDE MFG. , ENPO PUMP COMPANY , EUROPLAST LTD. FAIRBANKS NIJHUIS , FLINT & WALLING (Division of ZOELLER PUMP COMPANY) , FRANKLIN ELECTRIC COMPANY, INC. , GECKO ALLIANCE,INC. , HALE PRODUCTS, INC. , HAYWARD INDUSTRIES, INC. , HOMELITE CORPORATION , JACUZZI , JAEGER , LANCASTER PUMP COMPANY , LUITWEILER CORPORATION , MARLOW (Division of ITT INDUSTRIES) , MEMPHIS PUMP & MFG. COMPANY, INC. , MIDLAND PRODUCTS (Division of CRANE PUMPS & SYSTEMS) , MONARCH PUMPS (Division of FRANKLIN ELECTRIC COMPANY, INC.) , PAC-FAB (PENTAIR POOL PRODUCTS, INC.) , PACO , PEABODY BARNES MFG. (Division of CRANE PUMPS & SYSTEMS) , PREMIER , PRICE PUMP COMPANY , PUREX HYDROTECH , RED JACKET , REXNORD INDUSTRIES, LLC. , RICE PUMP , RUTH BERRY PUMP COMPANY , SCOT PUMP (A WILO USA Brand) , STA-RITE INDUSTRIES , STERLING MACHINERY , SWIMQUIP , TAIT MFG. ,TEEL PUMP , TRUPAR, WAUKESHA ENGINE , WAYNE COMBUSTION SYSTEMS , WORTHINGTON

Nameplate Data: Americana® , Bronze-Noryl® ; New Style: C1-1/2TPLS , C2TPMS , C2-1/2TPMS , B1-1/2MQKS C2TPMS , C2.5TPMS , B1XQHS , B1-1/4MQS , B1-1/2MQS ; Model 1003 ; Fig. 4910, 4911, 3305, 3352, 4352 ; AC, AEC, AES, AS , 81, 82, 83, 605, 607, 609 ; Shallow Well 64, 65, 66, 67, 68 ; Deep Well ; Max-Flo®, Super Pump®, Super Pump II® ; 5RP, SF, Magnum, RC-Series ; Types S & SD Lancaster Dutchman 1182, 1183, 1192, 1193 ; GSX ; Argonaut®, Mardur® , Hydropump® ; Vertical Single and Multi Stage 152 152DM, 202D, 202DM, 302D 302DM and 502DM ; Series 120T, MKII 225/255, 300 325/355, 725/756 ; AH Series™, L Series™ ; DJ/JS/JT Series Pre 01/01 ; Dura-Glas II® Pre 1998, Dura-Jet Dyna-Glas / Dyna-Max, Dyna-Jet™ ; JW/JWPA Series Max-E-Glas™ II, Pre 1998 , XL VI/XL VII Series , 1.5PE, 3 & 4

Also known as / searched as
- PS-201 mechanical seal
- 201 mechanical seal
- 201c mechanical seal
- Type 166 mechanical seal 3/4
- pool pump mechanical seal 3/4
- spa pump mechanical seal 3/4
- T-16 mechanical seal 3/4 (customers often search “T-16” style wording)
- Replacement style commonly used for Type 16, G, A, 6, AV, 2100 (verify size/fitment)
PHYSICAL PROPERTIES
Seal House Type 166
Our Type 166 configuration combines the best design elements we’ve refined over the years to deliver superior reliability and performance.

Key advantages include:
- Crimped rotary face with positive drive — securely held in place to prevent dislodgement during installation.
- Full metal retainer with positive drive — ensures strength and long-term durability.
- Full rubber bellows construction — provides complete sealing along both the shaft and face, rather than relying on a small O-ring or partial gasket.
- Molded/machined carbon face (never plastic) with upgrade options — delivers extended service life.
Compatibility & upgrade:

The Type 166 is designed to replace most small seal types commonly used in pool and spa applications, including Type 16, G, A, 6, AV, 2100, and more. Even in its basic form, this seal is a significant upgrade over standard “pool” seals typically available on the market.

Disclaimer: Seal House USA provides aftermarket replacement parts. Any OEM names are used strictly for cross-reference. We are an independent supplier.