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Grundfos Mechanical Seals

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    Grundfos 32mm Square Lug Drive Mechanical SealDouble Cartridge

    Grundfos 32mm Square Lug Drive Mechanical SealDouble 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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    Have questions? Call us anytime- we’re here to help 

    Weight 2 lbs
    Dimensions 4 × 4 × 3.5 in
  • Grundfos 96952242 mechanical seal replacement

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

    Grundfos 43/55mm Double Cartridge Mechanical SealOEM #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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    Have questions? Call us anytime- we’re here to help 

    Weight 5 lbs
    Dimensions 5 × 5 × 5 in
  • grundfos type b bellows seal 12mm

    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)

    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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    Weight .5 lbs
    Dimensions 2 × 2 × 2 in
  • Grundfos CR unitized cartridge mechanical seal, Type H threaded and Type E clamp-in, SiC/SiC/Viton

    Grundfos CR Unitized Mechanical SealOEM Type H / Type E (12mm / 16mm / 22mm / 28mm)

    Grundfos CR Unitized Mechanical SealOEM Type H / Type E (12mm / 16mm / 22mm / 28mm)

    Item #SH-GRU-CR-UNIT

    Grundfos CR Unitized Mechanical Seal — OEM Type H / Type E Cartridge

    Direct-fit unitized cartridge mechanical seals for Grundfos CR, CRI, CRN and CRNE multistage pumps, built to OEM-equivalent standards or higher. Every size is supplied in Silicon Carbide / Silicon Carbide / Viton. Choose the shaft size that matches your pump from the chart below.

    Grundfos CR Unitized Seals – Choose Your Size
    Find your pump size or the part number on your old seal, then select that shaft size from the dropdown above. All sizes are Silicon Carbide / Silicon Carbide / Viton.
    Size Seal type & OEM number Alternate manufacturing numbers Fits these pumps
    12mm Type H, threaded cartridge96455086 96455082, 96455083, 96455084, 96455085, 96455087, 96455089, A92541411P12120 CR, CRI, CRN, CRNE 1, 3, 5, 8 (e.g. CR3, CRN5); Grundfos MTR20-10/10 (AQQV seal code)
    16mm Type H, threaded cartridge96484071 / 96511844 96511836, 96511837, 96511840, 96511841, 96511845 CR, CRI, CRN, CRNE 10, 15, 20 (e.g. CRN15, CR20)
    22mm Type E, clamp-in cartridge96525458 96416584, 96433365, 96436728, 96525459, 96525490 CR, CRI, CRN, CRNE 32, 45, 64, 90
    28mm Type H, thread-in992626350 — CR, CRN 125–255 (D28)
    Not sure which size you need? Call or text 561-414-1046 with a photo of your pump nameplate — no purchase required.
    Fitment note 

    Check your shaft size, pump series (CR, CRI, CRN or CRNE) and seal type (H or E) against your nameplate or parts list before ordering. Enter your full pump model number at checkout under “Pump Model Notes” and we’ll confirm the match.

    Explore our full line up of OEM seals 

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    Weight 1.5 lbs
    Dimensions 3.5 × 3.5 × 3.5 in
  • Grundfos VGMG-1515 mechanical seal replacement

    Grundfos VGMG Double Mechanical SealVariation 1515 (VGMG-1515) 

    Grundfos VGMG Double Mechanical SealVariation 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 

    Weight 1 lbs
    Dimensions 3 × 3 × 2.5 in
  • Grundfos VGMG-1516 mechanical seal replacement

    Grundfos VGMG Mechanical SealVariation 1516 (VGMG-1516) — 12mm

    Grundfos VGMG Mechanical SealVariation 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

     

    Weight .5 lbs
    Dimensions 2 × 2 × 2 in