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2. OEM Replacement Seals by Brand

  • Grundfos 96405255 Mechanical Seal 16mm

    Grundfos 16mm Mechanical Seal — OEM 96405255 / 964057255 (16mm Pump Shaft Seal)

    Grundfos 16mm Mechanical Seal — OEM 96405255 / 964057255 (16mm Pump Shaft Seal)

    Grundfos 16mm Mechanical Seal — OEM 96405255 / 964057255 (16mm Pump Shaft Seal)

    Direct-fit Grundfos 16mm mechanical seal replacement for Grundfos CRT and TP series pumps, designed for fast, accurate ordering by OEM part number. This seal features a rugged three-prong tungsten carbide rotary face for long service life in demanding pump duty and is commonly searched as Grundfos 96405255 seal or 964057255 mechanical seal.

    Seal Details

    • Shaft size: 16mm

    • Rotary face: Three-prong tungsten carbide

    • Application: Grundfos CRT and TP series pumps

    • OEM reference numbers: 96405255, 964057255

    Tested model compatibility (based on customer use)

    • TP 40-80/2 U-G-A-BUBE

    • CRT16-3 A-P-A-E-AUUE

    Cross Reference / Alternate Part Numbers

    96405255 • 964 05255 • 964057255 • 964 057255 • “Grundfos 16mm pump seal” • “Grundfos TP mechanical seal 16mm” • “Grundfos CRT mechanical seal 16mm”

    Fitment note: Always verify 16mm shaft size and match your existing seal style before ordering.

    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 2 lbs
    Dimensions 10 × 8 × 4 in
    View Product
  • Buy Grundfos 16mm pump seal VGMG-1401

    Grundfos 16mm Single Spring Set Screw Mechanical Seal — VGMG-1401 Equivalent

    Grundfos 16mm Single Spring Set Screw Mechanical Seal — VGMG-1401 Equivalent

    Grundfos 16mm Single Spring Set Screw Mechanical Seal — VGMG-1401 Equivalent

    Direct-fit 16mm mechanical seal replacement for Grundfos-style / vertical multistage pump applications that use a single-spring set-screw drive. This seal is commonly used in CNP CDL pump systems and cross-references the OEM-style number VGMG-1401 for fast, accurate ordering. Built with Tungsten Carbide / Tungsten Carbide (TC/TC) faces and a Viton (FKM) elastomer for dependable sealing performance in demanding service.

    Seal Details

    • Shaft size: 16mm

    • Drive type: Single spring with set screw

    • Materials: TC/TC/Viton (FKM)

    • Application: CNP-CDL series pumps

    • OEM equivalent / cross reference: VGMG-1401

    Cross Reference / Alternate Search Terms

    VGMG-1401 • VGMG 1401 • VGMG1401 • “16mm set screw mechanical seal” • “CNP CDL 16mm mechanical seal”

    Fitment note: Always verify shaft size (16mm) and match the single-spring set-screw design to your existing seal before ordering.

    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 2 lbs
    Dimensions 10 × 8 × 4 in
    View Product
  • Placeholder

    Grundfos 22mm Pin Drive Double Cartridge Mechanical Seal — OEM 99030128 (Seal Only)

    Grundfos 22mm Pin Drive Double Cartridge Mechanical Seal — OEM 99030128 (Seal Only)

    Grundfos 22mm Pin Drive Double Cartridge Mechanical Seal — OEM 99030128 (Seal Only)

    High-quality aftermarket double cartridge mechanical seal replacement for Grundfos wastewater / grinder pump applications using a 22mm shaft with a pin-drive setting system. This design uses two bolt tabs to lock the seal for proper setting and installation. Cross-references Grundfos OEM 99030128 (note: the OEM part number is typically for the full kit—this listing is for the mechanical seal only).

    Seal Details

    • Shaft size: 22mm

    • Drive type: Pin drive with 2 bolt tabs

    • Design: Double mechanical cartridge seal

    • Application: Wastewater and grinder pump service

    • OEM reference: 99030128 (OEM # is for full kit; we offer mechanical seal only)

    Tested model compatibility (based on customer use)

    • SL1.20.A25.30.EX.2.6.J.C

    Cross Reference / Alternate Search Formats

    99030128 • 990 30128 • 990-30128 • “Grundfos 22mm pin drive mechanical seal” • “22mm double cartridge seal Grundfos”

    Fitment note: Always confirm 22mm shaft size and match the pin-drive / 2-bolt-tab setting style to your existing seal before ordering.

    Explore our full line up of OEM seals 

    Looking for more? Shop Pump Repair Kits, Shaft Seals and Gasket

    Weight 2 lbs
    Dimensions 10 × 8 × 4 in
    View Product
  • Placeholder

    Grundfos 22mm Square Lug Drive Mechanical Seal — Double Cartridge

    Grundfos 22mm Square Lug Drive Mechanical Seal — Double Cartridge

    Grundfos 22mm Square Lug Drive Mechanical Seal — Double Cartridge — 2-Bolt Tab Setting (SEG Series)

    High-quality aftermarket double cartridge mechanical seal replacement for Grundfos pumps using a 22mm shaft and a square lug drive setting system. This seal uses a 2-bolt tab locking design to hold the seal in the set position for proper installation, making it a reliable choice for wastewater and grinder pump service. Listed customer use includes Grundfos SEG.A15.55.EX.2.60M, and the seal body is marked with material code 1.4408.

    At a glance

    • Shaft size: 22mm

    • Drive type: Square lug drive with 2 bolt tabs

    • Design: Double mechanical cartridge seal

    • Application: Wastewater & grinder pump duty

    • Material code marking: 1.4408 (on seal body)

    Tested model compatibility (based on customer use)

    • SEG.A15.55.EX.2.60M

    Cross reference / Alternative Search Terms

    “22mm square lug drive seal” • “22mm lug drive mechanical seal” • “2-bolt tab cartridge seal” • “Grundfos SEG 22mm seal” • “SEG.A15.55.EX.2.60M seal” • “1.4408 seal”

    Fitment note: Always verify shaft size (22mm) and match the square-lug drive / 2-bolt-tab setting style to your existing seal before ordering.

    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 2 lbs
    Dimensions 10 × 8 × 4 in
    View Product
  • Placeholder

    Grundfos 32mm Pin Drive Mechanical Seal — OEM #99489003

    Grundfos 32mm Pin Drive Mechanical Seal — OEM #99489003

    Grundfos 32mm Pin Drive Mechanical Seal — OEM #99489003 — Double Cartridge (2-Bolt Tab Setting)

    Direct-fit aftermarket Grundfos mechanical seal replacement for pump assemblies that use a 32mm shaft and a pin-drive, 2-bolt-tab setting system. This is an OEM-style double cartridge mechanical seal built for secure installation and stable sealing performance in clean water, wastewater, and light chemical service. Order by Grundfos part number 99489003 to match the correct pinned setting configuration.

    Seal Details

    • OEM reference: 99489003

    • Shaft size: 32mm

    • Design: Double cartridge mechanical seal

    • Drive / setting: Pin drive with 2 bolt tabs

    • Materials: Silicon / Silicon-Carbon / Viton (FKM)

    • Service: Clean water, wastewater, light chemical

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

    Cross Reference / Alternate Search Formats

    99489003 • 994 89003 • #99489003 • “Grundfos 32mm pin drive mechanical seal” • “32mm double cartridge seal 2 bolt tab”

    Explore our full line up of OEM seals 

    Looking for more? Shop Pump Repair Kits, Shaft Seals and Gasket

    Weight 2 lbs
    Dimensions 10 × 8 × 4 in
    View Product
  • Placeholder

    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.

    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 2 lbs
    Dimensions 10 × 8 × 4 in
    View Product
  • 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 

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

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

    Weight 2 lbs
    Dimensions 10 × 8 × 4 in
    View Product
  • 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)

    Explore our full line up of OEM seals 

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

    Weight 2 lbs
    Dimensions 10 × 8 × 4 in
    View Product
  • 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.

    Explore our full line up of OEM seals 

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

    Weight 2 lbs
    Dimensions 10 × 8 × 4 in
    View Product

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