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851


QTY Price

$6.00


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  • DESCRIPTION

    Equal to industry standard 851 / PS-851

    Mechanical seal Type 166, T-16;  ¾” shaft size with 1.375″ x .406″ cup seat machined carbon/ceramic/buna

    For Upgrades/variations: 201 (basic), 3868 (premium & viton), 201cv (molded carbon), 201cvss (silicon/silicon/viton)

    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

    OEM number: 11107939 , 30220F , S20794, S21961 , W105-1 , 0000059 , S1190 , 296-5040-00 , SP1600Z3 , 170480001 , 2120-0010 , 48244 , 240260 , 3201625000 , 170480001 , 170480001, 37400-0027S , 32223, 322231H , 5P414, 1R299 , 70X107-M , 17-62372-008

    Brands: ABS USA (SULZER) , ACE PUMP CORPORATION , BERKELEY PUMPS (A PENTAIR Brand) , CH&E MFG. COMPANY , CRANE PUMPS & SYSTEMS , HALE PRODUCTS, INC. , HAYWARD INDUSTRIES, INC. , HYDROMATIC. , PUMP COMPANY , HYPRO CORPORATION , MAGNUM PRODUCTS, LLC. , MONARCH PUMPS (Division of FRANKLIN ELECTRIC COMPANY, INC.) , MOYNO, INC. (A NOV Brand) , PENTAIR, INC. , STA-RITE INDUSTRIES , STONE CONSTRUCTION , TEEL PUMP , WEBER INDUSTRIES, INC. , WEIL PUMP COMPANY, INC. (Part of WILO USA)

    Nameplate Data:  ACH-150, 200, 300, 500 ACXH-150 , BCH-100, 200, 300 , 1P855-868-869-895,1P913, 1P950 2P007-008, 2P333, 3P525 3P526, 3P600

  • 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.

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