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Grundfos Mechanical Seals

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    Grundfos 12mm Mechanical Seal for Technotrans CM3 # 06932440

    Grundfos 12mm Mechanical Seal for Technotrans CM3 # 06932440

    Grundfos 12mm Mechanical Seal for Technotrans CM3 – Part # 06932440

    High-quality aftermarket mechanical seal designed for Grundfos Technotrans CM3 pumps. This seal is a direct replacement for OEM kit #06932440, offered here as the mechanical seal only (not the full kit). 

    Seal Details:

    • Shaft Size: 12mm
    • Application: Technotrans Grundfos CM3-5A-S-G-V-AQQVE-A-A-N
    • Material: Silicon/Silicon/Viton
    • Design: Compact mechanical seal for CM pump series

    Cross References:

    • Replaces Grundfos OEM: 06932440 (OEM # is for full kit, we offer mechanical seal only)

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    Grundfos 12mm Mechanical Seal – 00985769 / 985204 / 00435045

    Grundfos 12mm Mechanical Seal – 00985769 / 985204 / 00435045

    Grundfos 12mm Mechanical Seal – 00985769 / 985204 / 00435045

    Mechanical seal designed for Grundfos MTH and CR-series pumps using a 12mm shaft. This seal features a durable three-prong tungsten carbide rotary face and is compatible with several Grundfos OEM part numbers.

    Seal Details:

    • Shaft Size: 12mm
    • Rotary Face: Three-prong tungsten carbide
    • Application: Grundfos MTH 8-5015, MTH/C 2/4 series, CR and CRK pump models
    • OEM Reference Numbers: 00985769 (confirmed), 985204, 00435045 (customer-supplied)

    Tested Model Compatibility (based on customer use):

    • CR4-120 U-G-A-AUUE, Model: C 41006072 xx 9809
    • CRN4-50-120 (confirmed same seal)
    • CRK2-150/15 A-M-A-AUUV, Model: C, 3KW

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    Grundfos 12mm Single Spring Set Screw Mechanical Seal

    Grundfos 12mm Single Spring Set Screw Mechanical Seal

    Grundfos 12mm Single Spring Set Screw Mechanical Seal – VGMG-1400 Equivalent

    Mechanical seal designed for Grundfos-style pumps using a 12mm shaft. This single spring, set screw design is commonly used in CNP-CDL pump applications and is available in two material configurations for versatile performance.

    Seal Details:

    • Shaft Size: 12mm
    • Drive Type: Single spring with set screw
    • Material: Tungsten Carbide/Tungsten Carbide/Viton
    • Application: CNP-CDL series pumps
    • OEM Equivalent: VGMG-1400

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    Grundfos 16mm Mechanical Seal – 96405255 / 964057255

    Grundfos 16mm Mechanical Seal – 96405255 / 964057255

    Grundfos 16mm Mechanical Seal –  96405255 / 964057255

    Mechanical seal designed for Grundfos pump systems requiring a 16mm shaft. This model features a rugged three-prong tungsten carbide rotary face for long-lasting durability and is compatible with several customer-referenced Grundfos systems.

    Seal Details:

    • Shaft Size: 16mm
    • Rotary Face: Three-prong tungsten carbide
    • Application: CRT and TP series pumps
    • OEM Reference Numbers: 96405255, 964057255 (customer-supplied)

    Tested Model Compatibility (based on customer use):

    • TP 40-80/2 U-G-A-BUBE
    • CRT16-3 A-P-A-E-AUUE

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    Grundfos 16mm Single Spring Set Screw Mechanical Seal

    Grundfos 16mm Single Spring Set Screw Mechanical Seal

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

    Mechanical seal designed for Grundfos-style pumps using a 16mm shaft. Built with a secure single spring set screw design, this seal is ideal for use in CNP-CDL pump systems.

    Seal Details:

    • Shaft Size: 16mm
    • Drive Type: Single spring with set screw
    • Material: TC/TC/Viton (Tungsten Carbide faces with Viton elastomer)
    • Application: CNP-CDL series pumps
    • OEM Equivalent: VGMG-1401

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    Grundfos 22mm Pin Drive Mechanical Seal #99030128

    Grundfos 22mm Pin Drive Mechanical Seal #99030128

    Grundfos 22mm Pin Drive Mechanical Seal – 99030128

    High-quality aftermarket double cartridge seal designed for Grundfos pumps using a 22mm shaft and pin drive system. This model features a two-bolt tab locking design for proper setting and installation.

    Seal Details:

    • Shaft Size: 22mm

    • Drive Type: Pin drive with 2 bolt tabs

    • OEM Reference: 99030128 (OEM # is for full kit, we offer mechanical seal only)
    • Design: Double mechanical cartridge seal

    • Application: Wastewater and grinder pump service

    Tested Model Compatibility (based on customer use):

    • SL1.20.A25.30.EX.2.6.J.C

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    Grundfos 22mm Square Lug Drive Mechanical Seal

    Grundfos 22mm Square Lug Drive Mechanical Seal

    Grundfos 22mm Square Lug Drive Mechanical Seal

    High-quality aftermarket double cartridge seal designed for Grundfos pumps using a 22mm shaft and square lug drive system. This model features a two-bolt tab locking design for proper setting and installation.

    Seal Details:

    • Shaft Size: 22mm

    • Drive Type: Square lug with 2 bolt tabs

    • Material Code: Marked 1.4408 on seal body

    • Design: Double mechanical cartridge seal

    • Application: Wastewater and grinder pump service

    Tested Model Compatibility (based on customer use):

    • SEG.A15.55.EX.2.60M

    This seal is built to meet or exceed OEM specifications for performance and fit, making it a trusted upgrade for SEG-series Grundfos pumps.

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    Grundfos 32mm Pin Drive Mechanical Seal # 99489003

    Grundfos 32mm Pin Drive Mechanical Seal # 99489003

    Grundfos 32mm Pin Drive Mechanical Seal – Part #99489003

    OEM-style double cartridge mechanical seal with precision pin drive and two-bolt tab locking design for secure installation. Built for high-performance Grundfos pump applications requiring stable, high-load sealing performance.

    Seal details:

    • Shaft Size: 32mm

    • Design: Double Cartridge Seal

    • Drive: Pin drive with 2 bolt tabs for setting

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

    • Application: Clean water, wastewater, and light chemical service

    Compatibility:

    • Direct aftermarket replacement for Grundfos part #99489003

    • Ideal for OEM Grundfos pump assemblies using a 32mm shaft with pinned setting configuration

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    Grundfos 32mm Square Lug Drive Mechanical Seal

    Grundfos 32mm Square Lug Drive Mechanical Seal

    Grundfos 32mm Square Lug Drive Mechanical Seal

    Premium aftermarket double cartridge mechanical seal featuring a square lug drive and two-bolt tab locking design for secure, precise installation. Engineered for durability in demanding Grundfos pump applications.

    Seal Details:

    • Shaft Size: 32mm

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

    • Design: Double Cartridge 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

    Explore our full line up of OEM seals 

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