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Grundfos Mechanical Seals

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    Grundfos 32mm Square Lug Drive Mechanical Seal — Double Cartridge

    Grundfos 32mm Square Lug Drive Mechanical Seal — Double Cartridge

    Grundfos 32mm Square Lug Drive Mechanical Seal — Double Cartridge (2-Bolt Tab Setting) — Viton (FKM)

    Premium aftermarket Grundfos 32mm lug drive mechanical seal (square lug drive) built as a double cartridge seal for secure, repeatable installation. This design uses a 2-bolt tab locking / setting system to hold the seal in position during installation—ideal for demanding Grundfos pump applications where long run-time and reliable sealing matter. Tested customer-use includes Grundfos SLV-series models such as SLV.30.A30.150.2.61RC, SLV.40.A40.100, and SLV.30.A40.30.4.61J.

    Seal Details

    • Shaft size: 32mm

    • Drive type: Square lug drive with 2 bolt tabs for setting

    • Design: Double cartridge mechanical seal

    • Seal faces: Silicon vs. Silicon-Carbon

    • Elastomers: Viton (FKM)

    Tested model compatibility (based on customer use)

    • SLV.30.A30.150.2.61RC

    • SLV.40.A40.100

    • SLV.30.A40.30.4.61J

    Cross Reference / Alternative Search Terms

    Grundfos 32mm lug drive seal • Grundfos 32mm square lug drive mechanical seal • 32mm double cartridge seal 2 bolt tab • 2-bolt tab seal / two bolt tab seal • SLV.30.A30.150.2.61RC seal • SLV.40.A40.100 seal • SLV.30.A40.30.4.61J seal

    Fitment note: Always confirm 32mm shaft size and match the lug-drive / 2-bolt-tab setting style to your existing seal before ordering.

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  • Grundfos 96952242 mechanical seal replacement

    Grundfos 43/55mm Double Cartridge Mechanical Seal — OEM #96952242 (SE / SL Series Wastewater Pumps)

    Grundfos 43/55mm Double Cartridge Mechanical Seal — OEM #96952242 (SE / SL Series Wastewater Pumps)

    Item #N/A

    Grundfos 43/55mm Double Cartridge Mechanical Seal — OEM #96952242 (SE / SL Series Wastewater Pumps)

    Premium aftermarket cartridge-style double mechanical seal replacement engineered for Grundfos SE & SL series submersible wastewater pumps. This 43/55mm double cartridge seal is built for tough sewage service in high-load, high-velocity applications and is ordered most often by OEM part number 96952242 for fast, accurate matching.

    At a glance

    • Style: Double cartridge mechanical seal (double seal design)

    • Seal faces: Silicon vs. Silicon-Carbon

    • Elastomer: Viton (FKM)

    • OEM cross reference: Replaces Grundfos 96952242

    • Alternate part numbers (lower-grade versions): 99352843, 92773081

    Options (select from dropdown menu above)

    • Seal Only

    • Seal + Buna O-Ring Kit for SLV.30.A40.300.4.61J

    • Seal + Buna O-Ring Kit for SEV.30.A30.230.2 52H.C.EX.61R (26.1 HP)

    Compatible Grundfos pump series

    • SE & SL Series: 9–30 kW / 12–42 HP (including SLV EX, SL EX, SL1 EX, SL2 EX)

    • Supports 2-pole and 4-pole configurations

    Tested model compatibility (based on customer use)

    • SE1.35.A40.27.xx (30.0 HP)

    • SE1.75.100.170.2

    • SLV.30.A30.300.x (52H.S.N.61P)

    • SE1.30.A40.230.2 (26.2 / 22.8 HP)

    • SLV.30.A30.300.2 (33.2 / 29.5 HP)

    • SE1.35.A60.245.4 (27.1 / 24.1 HP)

    • SEV.30.A30.230.2 (26.1 HP)

    Fitment note: Always verify your exact pump model/variant and seal configuration before ordering.

    OEM cross reference / alternative part numbers

    This seal is an OEM-style replacement for:

    • Grundfos OEM: 96952242 (also searched as 969 52242 / 96952242)

    • Alternate part numbers: 99352843 (993 52843 / 99352843), 92773081 (927 73081 / 92773081)

    Explore our full line up of OEM seals 

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  • buy grundfos type b bellows seal

    Grundfos CR / LP / UTP — OEM Type B Bellows Component Mechanical Seal (12mm / 16mm) 

    Grundfos CR / LP / UTP — OEM Type B Bellows Component Mechanical Seal (12mm / 16mm) 

    Item #N/A

    Grundfos CR / LP / UTP — OEM Type B Bellows Component Mechanical Seal (12mm / 16mm)

    OEM-style Type B bellows component mechanical seal for Grundfos CR/CRK/CRN, plus LP and UTP pump applications. Order by shaft size and OEM reference for fast, accurate matching: 12mm Type B (BUBV) Grundfos 405347 / 405347TC / 405096, or 16mm Type B (BUBE) Grundfos 425762 / 964092654 / 425763 (equivalent style reference VGMG-1304). Each option is supplied with SiC/SiC seal faces and Viton (FKM) elastomers for reliable sealing in demanding pump service.

    What’s included: Component mechanical seal (rotary + stationary seat). (Ancillary gaskets/sleeves sold separately unless noted.)

    Sizes & OEM cross-references (for fast, accurate ordering select size from drop down menu above)

    12mm — Grundfos 405347 — OEM Type B (BUBV)

    • Build: Single-spring full bellows component seal, 2-piece (rotary + stationary seat) with O-ring; SiC/SiC/Viton®

    • Fits: CRK 2, CRK 4 (Seal House has confirmed fitment to CRK4)

    • Alternative / manufacturing numbers: 405096, 405347, 405347TC

    16mm — Grundfos 425762 / 964092654 — OEM Type B (BUBE)

    • Build: Single-spring full bellows component seal, 2-piece (rotary + stationary seat) with O-ring; SiC/SiC/Viton®

    • Fits: CRN 8, CR 16

    • Equivalent: VGMG-1304

    • Confirmed applications (examples): 2.5LP5 U-G-A-BUBE, UPT50-160 U-G-A BUBE D9726

    • Primary mfg number: Old 425762 ? New 964092654; alternate numbers: 425763, 425762TC

    Fitment note: Verify shaft size (12mm or 16mm), pump series (CR/CRK/CRN/LP/UTP), and OEM type code (BUBV/BUBE) against your nameplate or parts list.

    Cross References & Alternative Part Numbers

    Search by any of the OEM numbers below to find the correct Grundfos Type B bellows component mechanical seal:

    12mm — Type B (BUBV)

    • Grundfos 405347 (also searched as: 405 347 / #405347 / 405347TC)

    • Alternative numbers: 405096 (405 096 / #405096)

    16mm — Type B (BUBE)

    • Grundfos 425762 (425 762 / #425762 / 425762TC)

    • Superseded by (new number): 964092654 (964 092654 / #964092654)

    • Related / alternate numbers: 425763 (425 763 / #425763)

    • Equivalent style reference: VGMG-1304 (VGMG 1304 / VGMG1304)

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  • Grundfos 12mm threaded mechanical seal Grundfos CR Type H mechanical seal

    Grundfos CR Unitized Mechanical Seal — OEM Type H / Type E Cartridge (12mm / 16mm / 22mm / 28mm)

    Grundfos CR Unitized Mechanical Seal — OEM Type H / Type E Cartridge (12mm / 16mm / 22mm / 28mm)

    Item #N/A

    Grundfos CR Unitized Mechanical Seal — OEM Type H / Type E Cartridge (12mm / 16mm / 22mm / 28mm)

    Direct-fit unitized cartridge mechanical seals for Grundfos CR / CRI / CRN / CRNE multistage pumps. Choose your shaft size (12, 16, 22, or 28mm) to match the correct OEM cartridge style (Type H threaded / Type E clamp-in) and order by the OEM part number for fast, accurate replacement. All versions are supplied in Viton / Silicon Carbide / Silicon Carbide (VIT/SiC/SiC) for excellent wear resistance, temperature capability, and chemical resistance in demanding pump service.

    Size options:

    12 mm (96455086) — Type H (Threaded Cartridge) 

    • Build: VIT/SIC/SIC, threaded cartridge

    • Fits: CR, CRI, CRN, CRNE sizes 1, 3, 5, 8 (e.g., CR3, CRN5)

    • Alt. manufacturing numbers: 96455082, 96455083, 96455084, 96455085, 96455086, 96455087, 96455089

    16 mm (96484071, 96511844) — Type H (Threaded Cartridge)

    • Build: VIT/SIC/SIC, threaded cartridge

    • Fits: CR, CRI, CRN, CRNE sizes 10, 15, 20 (e.g., CRN15, CR20)

    • Alt. manufacturing numbers: 96484071, 96511836, 96511837, 96511840, 96511841, 96511844, 96511845

    22 mm (96525458) — Type E (Clamp-In Cartridge)

    • Build: VIT/SIC/SIC, clamp-in cartridge

    • Fits: CR, CRI, CRN, CRNE sizes 32, 45, 64, 90

    • Alt. manufacturing numbers: 96416584, 96433365, 96436728, 96525458, 96525459, 96525490

    28 mm — Type H (Thread-In)

    • Part no.: 992626350

    • Build: VIT/SIC/SIC, thread-in mechanical seal

    • Fits: CR/CRN 125–255 (D28)

    Cross references & alternative part numbers

    Search any of the numbers below to find the correct Grundfos Type H / Type E unitized seal:

    12mm — Type H (Threaded Cartridge)

    • 96455086 (also searched as: 964 55086 / #96455086)

    • Alternate manufacturing numbers: 96455082, 96455083, 96455084, 96455085, 96455086, 96455087, 96455089

    16mm — Type H (Threaded Cartridge)

    • 96484071, 96511844 (also searched as: 964 84071 / 965 11844)

    • Alternate manufacturing numbers: 96484071, 96511836, 96511837, 96511840, 96511841, 96511844, 96511845

    22mm — Type E (Clamp-In Cartridge)

    • 96525458 (also searched as: 965 25458 / #96525458)

    • Alternate manufacturing numbers: 96416584, 96433365, 96436728, 96525458, 96525459, 96525490

    28mm — Type H (Thread-In)

    • 992626350 (also searched as: 992 626350 / #992626350)

    Why this seal

    • Unitized cartridge = consistent working length, faster installs

    • SiC/SiC faces + Viton elastomers = wear, temperature, and chemical resistance

    • OEM Type H/E form factors to match Grundfos assemblies

    Notes:
    Please verify shaft size, series/size (CR/CRI/CRN/CRNE), and OEM Type (H/E) against your nameplate or parts list. If you need alternate material codes or help confirming the correct seal, contact us—we’ll match it to your pump, we are here to help.

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  • Grundfos VGMG-1515 mechanical seal replacement

    Grundfos VGMG Double Mechanical Seal — Variation 1515 (VGMG-1515) 

    Grundfos VGMG Double Mechanical Seal — Variation 1515 (VGMG-1515) 

    Grundfos VGMG Double Mechanical Seal — Variation 1515 (VGMG-1515)

    OEM-style Grundfos VGMG mechanical seal replacement for pump applications that use VGMG variation 1515. This seal is built with SiC/SiC (silicon carbide / silicon carbide) faces for excellent wear resistance and dependable sealing performance in demanding pump service.

    Seal Details

    • Seal style: GRUNDFOS VGMG

    • Variation: 1515 (VGMG-1515)

    • Seal face materials: SiC/SiC (silicon carbide / silicon carbide)

    Cross references & alternative part numbers

    • VGMG-1515

    • VGMG 1515

    • VGMG1515

    • Grundfos VGMG variation 1515

    • Grundfos mechanical seal 1515

    Fitment note: Grundfos seals are commonly identified by variation/style and dimensions—confirm your existing seal code and measurements before ordering to ensure proper fit

    Explore our full line up of OEM seals 

    Looking for more? Shop Pump Repair Kits, Shaft Seals and Pre-Cut Gaskets

    Have questions? Call us anytime- we’re here to help 

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  • Grundfos VGMG-1516 mechanical seal replacement

    Grundfos VGMG Mechanical Seal — Variation 1516 (VGMG-1516) — 12mm

    Grundfos VGMG Mechanical Seal — Variation 1516 (VGMG-1516) — 12mm

    Grundfos VGMG Mechanical Seal — Variation 1516 (VGMG-1516) — 12mm

    OEM-style Grundfos VGMG mechanical seal replacement for pump applications that use the VGMG-1516 / Variation 1516 seal configuration. Built with CAR/SiC (Carbon / Silicon Carbide) seal faces for reliable sealing performance and strong wear resistance in demanding pump service.

    Seal Details

    • Seal style: GRUNDFOS VGMG

    • Variation: 1516 (VGMG-1516)

    • Shaft size: 12mm

    • Seal face materials: CAR/SiC (Carbon/Silicon Carbide)

    Cross references & alternate search formats

    • VGMG-1516

    • VGMG 1516

    • VGMG1516

    • Grundfos VGMG variation 1516

    • Grundfos mechanical seal 1516

    • 12mm Grundfos VGMG seal

    Fitment note: Grundfos seals are often identified by variation/style + dimensions—confirm your existing seal code and measurements before ordering to ensure proper fit.

    Explore our full line up of OEM seals 

    Looking for more? Shop Pump Repair Kits, Shaft Seals and Pre-Cut Gaskets

     

    View Product

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