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Mechanical Seal 201cv (PS-201V-CMS) — 3/4″

ps-100 , ps-200 , ps-201 mechanical seal- buy now!

Mechanical Seal 201cv (PS-201V-CMS) — 3/4″

Weight 1 lbs
Dimensions 8 × 6 × 4 in
QTY Price

$10.00
Have a Question?
  • DESCRIPTION

    Mechanical Seal 201cv — Type 166 / T-16 (3/4″) | PS-201V-CMS Equivalent

    Equal to industry standard 201cv / PS-201V-CMS.
    Direct-fit Type 166 / T-16 single-spring seal for pool/spa and small-pump applications—built with molded carbon/ceramic faces and Viton elastomers for added chemical and temperature resistance.

    At-a-glance specs: 3/4″ shaft • 1.375″ × 0.406″ cup seat • Molded carbon/ceramic faces • Viton/FKM elastomers

    Why choose this 201cv (PS-201v-cms):

    • Viton handles higher chlorine, heat, and chemicals better than Buna

    • Proven T-16 footprint for quick, drop-in replacement

    Upgrades / Alternatives (same footprint)

    • 201c — Basic (Buna)

    •  851  — Premium carbon face (Buna)

    • 3868 — Premium + Viton (machined carbon)

    • 201cvss — Silicon Carbide / Silicon Carbide / Viton

    Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.

    Looking for more? Shop Pump Repair Kits, Parts & Accessories, and Pre-Cut Gaskets.

    Have questions? Check out our Pool/Spa Small Pump Guide or call us anytime—we’re here to help.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
  • SPECIFICATIONS
    Cross references & alternative part numbers

    OEM numbers: S18662 , W105-1V , SPX1600Z2GV, SP1600VIT , 170480011 , 2120-0011 , 240344, MS44 , 101.000.115 , 2120-0011 , 56112 , 70X108-M , 17351-0101S , 37400-0028S , 37400-0027S , U109-358SS 37400-0028S , U109-358SS 37400-0027S 37400-0027S 17351- 0101S 17351-0101S 17351-0101S , U109-358SS 37400-0027S ,  37400-0028S 17351-0101S

    Brands: BERKELEY PUMPS (A PENTAIR Brand) , CH&E MFG. COMPANY , HAYWARD INDUSTRIES, INC. , HYDROMATIC PUMP COMPANY , MONARCH PUMPS (Division of FRANKLIN ELECTRIC COMPANY, INC.) , SCOT PUMP (A WILO USA Brand) , STA-RITE INDUSTRIES , WAYNE WATER SYSTEMS , WEBER INDUSTRIES, INC. , Pentair Pool Products

    Nameplate data: 9000 Series , BSGF 6&8, B2U , 2.5″ & 3 HP , IntelliFloXF® VSP , SuperFlo® VST , Dura-Glas®II Dura-Glas®II- P4E, P4EA,P4R, P4RA . [Dura-Jet Dyna-Glas® / Dyna-Max® After June 2000] [Dyna-Jet™ Dyna-Pro®, Dyna-Pro E Dyna-Wave® , JW/JWPA Series After Jan. 2001] ; Max-E-Glas™II P4E, P4EA,P4R,P4RA
    Max-E-Pro™ P6E, P6RA Max-E-ProXF® VS

    Also known as / searched as

    • 201cv mechanical seal

    • PS-201V-CMS mechanical seal

    • PS201VCMS mechanical seal

    • 201 V CMS mechanical seal

    • Type 166 mechanical seal 3/4

    • T-16 mechanical seal 3/4

    • pool pump mechanical seal 3/4

    • spa pump mechanical seal 3/4

    • 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.

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