3. Pump Repair Kits by Brand
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Flygt 3350 / 7121 Pump Repair Kit
Flygt 3350 / 7121 Pump Repair Kit
View ProductFlygt 3350 / 7121 Pump Repair Kit — Double Mechanical Seal Assembly (Cross-ref: 3531.905)
Direct-fit double mechanical seal assembly for Flygt 3350 and Flygt 7121 submersible pump applications (including 7121.985). This kit is supplied fully pre-assembled on a new stainless-steel flange to simplify installation, improve alignment, and reduce setup errors during pump rebuilds. Cross-reference / alternative part no.: 3531.905.
At a glance
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Configuration: Double seal (upper + lower)
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Seal faces: TC/TC – TC/TC (Tungsten Carbide vs Tungsten Carbide, both stages)
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Elastomers: Viton (FKM)
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Mounting: Pre-assembled on stainless-steel flange
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Includes: Complete O-ring kit
Why this kit:
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Drop-in assembly reduces install time and setup errors
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Hard TC/TC faces for excellent wear and heat resistance
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Viton elastomers handle higher temperature and aggressive chemistry
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Stainless flange for strength, corrosion resistance, and precise seal seating
Compatibility:
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Flygt 3350
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Flygt 7121 (e.g., 7121.985)
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Cross-reference: 3531.905 (seal assembly reference)
Explore our full line up of Pump Repair Kits
Looking for more? Check out our Shaft seals, Gaskets, Parts/Accessories & OEM seals
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Flygt Plug-In 20mm Seal Kit
Flygt Plug-In 20mm Seal Kit
Item #2630
View ProductFlygt Plug-In 20mm Seal Kit — Double Cartridge Mechanical Seal (Replaces 769.94.30 / 7699430)
Direct-fit aftermarket replacement 20 mm double cartridge mechanical seal for Flygt submersible pumps. The plug-in, pre-assembled design simplifies installation and delivers consistent sealing performance after service or rebuilds.
Compatibility (20 mm shaft)
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Flygt pumps: 2610, 2620, 2630, 2640, 4610, 4620, 2840
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Cross-reference / part no.: 769 94 30
What’s included:
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Pre-assembled double mechanical seal cartridge (motor-side and liquid-side seals in one unit)
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Optional Add on- Complete O-ring kit — select the add-on using dropdown menu above
Available versions:
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Cartridge mechanical seals only
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Cartridge mechanical seal + O-ring kit (recommended when doing a full rebuild)
**Important fitment note: Flygt plug-in seal assemblies can vary by build. Please enter your full pump model number at checkout under “Pump Model Number Notes” so we can confirm the correct configuration for your unit.
Explore our full line up of Pump Repair Kits
Looking for more? Shop Shaft seals, Parts & Accessories, and Pre-Cut Gaskets.
Have questions?- Call us anytime-we’re here to help
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Flygt Plug-In 25mm Seal Kit
Flygt Plug-In 25mm Seal Kit
Item #4630
View ProductFlygt Plug-In 25mm Seal Kit — Double Cartridge Mechanical Seal (Pre-Assembled)
Replacement Flygt Plug-In 25mm double cartridge mechanical seal for Flygt submersible pumps that use a 25mm shaft. This plug-in, pre-assembled double seal cartridge simplifies installation during service/rebuilds and helps deliver consistent sealing performance by keeping the motor-side and liquid-side seals aligned in one unit.
Compatibility (25 mm shaft)
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Flygt pumps: 2660, 4630, 4640, 8105.182
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Cross-reference / part no.: (varies by build—contact us to confirm)
What’s included:
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Pre-assembled double mechanical seal cartridge (motor-side and liquid-side seals in one unit)
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Optional Add-on Complete O-ring kit — select the add-on on our drop down menu above
Available versions:
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Cartridge mechanical seal only
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Cartridge mechanical seal + O-ring kit (recommended for a full rebuild)
**Important fitment note: Flygt plug-in seal assemblies can vary by build. Please enter your full pump model number at checkout under “Pump Model Number Notes” so we can confirm the correct configuration for your unit.
Explore our full line up of Pump Repair Kits
Looking for more? Shop Shaft seals, Parts & Accessories, and Pre-Cut Gaskets.
Have questions?- Call us anytime-we’re here to help
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Flygt Plug-In 35mm Seal Kit
Flygt Plug-In 35mm Seal Kit
Item #3153
View ProductFlygt Plug-In 35mm Seal Kit — Double Cartridge Mechanical Seal (Pre-Assembled)
Replacement Flygt Plug-In 35mm double cartridge mechanical seal for Flygt submersible pumps that use a 35mm shaft. This plug-in, pre-assembled double seal cartridge simplifies installation during service/rebuilds and helps deliver consistent sealing performance by keeping the motor-side and liquid-side seals aligned in one unit.
Compatibility (35 mm shaft)
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Flygt pumps: 2670, 3153, 5100.210, 5100.211, 5100.220, 5100.221
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Cross-reference / part no.: (varies by build—contact us to confirm)
What’s included:
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Pre-assembled double mechanical seal cartridge (motor-side and liquid-side seals in one unit)
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Optional Add on- Complete O-ring kit — select the add-on using dropdown menu above
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Optional Add on- Basic repair hardware kit (snap rings + wave washer) — select the “seal + O-ring kit + snap rings & wave washer” option to include these parts and to view the hardware photo in the product image area
Available versions:
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Cartridge mechanical seal only
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Cartridge mechanical seal + O-ring kit (recommended for a full rebuild)
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Cartridge mechanical seal + O-ring kit + basic repair hardware kit (snap rings + wave washer) (recommended if your retaining rings/washer are damaged during removal or missing during rebuild)
Important fitment note: Flygt plug-in seal assemblies can vary by build. Please enter your full pump model number at checkout under “Pump Model Number Notes” so we can confirm the correct configuration for your unit
Explore our full line up of Pump Repair Kits
Looking for more? Shop Shaft seals, Parts & Accessories, and Pre-Cut Gaskets.
Have questions?- Call us anytime-we’re here to help
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Flygt Plug-In 45mm Seal Kit
Flygt Plug-In 45mm Seal Kit
Item #3171
View ProductFlygt Plug-In 45mm Seal Kit — Double Cartridge Mechanical Seal (Pre-Assembled)
Replacement Flygt Plug-In 45mm double cartridge mechanical seal for Flygt submersible pumps that use a 45mm shaft. This plug-in, pre-assembled double seal cartridge simplifies installation during service/rebuilds and helps deliver consistent sealing performance by keeping the motor-side and liquid-side seals aligned in one unit.
Compatibility (45 mm shaft)
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Flygt pumps: 3171, 4650, 4660, 5100.250, 5100.251, 5100.260, 5100.261
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Cross-reference / part no.: (varies by build—contact us to confirm)
What’s included:
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Pre-assembled double mechanical seal cartridge (motor-side and liquid-side seals in one unit)
-
Optional Add on- Complete O-ring kit — select the add-on using dropdown menu above
Available versions:
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Cartridge mechanical seal only
-
Cartridge mechanical seal + O-ring kit (recommended for a full rebuild)
Important fitment note: Flygt plug-in seal assemblies can vary by build. Please enter your full pump model number at checkout under “Pump Model Number Notes” so we can confirm the correct configuration for your unit.
Explore our full line up of Pump Repair Kits
Looking for more? Shop Shaft seals, Parts & Accessories, and Pre-Cut Gaskets.
Have questions?- Call us anytime-we’re here to help
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Flygt Plug-In 90 mm Seal Kit
Flygt Plug-In 90 mm Seal Kit
Item #3301
View ProductFlygt Plug-In 90 mm Seal Kit — Double Cartridge Mechanical Seal
Replacement Flygt/Xylem Plug-In 90 mm double cartridge mechanical seal for Flygt submersible pumps. The plug-in, pre-assembled design simplifies installation during service/rebuilds and helps deliver consistent sealing performance by keeping the motor-side and liquid-side seals aligned in one unit.
Compatibility (90 mm shaft)
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Flygt pumps: 3301, 3315, 5150.350, 5150.360
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Cross-reference / part no.: (varies by build—contact us to confirm)
What’s included:
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Pre-assembled double mechanical seal cartridge (motor-side and liquid-side seals in one unit)
-
Optional Add-on: Complete O-ring kit — select the add-on using dropdown menu above
Available versions:
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Cartridge mechanical seal only
-
Cartridge mechanical seal + O-ring kit (recommended when doing a full rebuild)
**Important note: Please specify full pump model number at checkout under “Pump Model Number Notes” when ordering
Explore our full line up of Pump Repair Kits
Looking for more? Shop Shaft seals, Parts & Accessories, and Pre-Cut Gaskets.
Have questions?- Call us anytime-we’re here to help
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HOMA AK1056-370/77G/C Repair Kit – 65 mm Mechanical Seals
HOMA AK1056-370/77G/C Repair Kit – 65 mm Mechanical Seals
View ProductHOMA AK1056-370/77G/C Repair Kit — 65 mm Mechanical Seals
Direct-fit replacement HOMA AK1056-370/77G/C pump repair kit / pump seal kit for overhauling the seal assembly. This kit is built to OEM-equivalent performance and includes the critical sealing components needed for a clean, reliable rebuild.
Compatibility:
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Pump compatibility: HOMA AK1056-370/77G/C
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Motor compatibility: N/A (motor model unknown)
Materials:
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Seal faces: Silicon carbide / silicon carbide (SiC/SiC)
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Elastomers: Viton (FKM)
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O-rings: Buna-N (NBR)
What’s included:
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65 mm OEM-equivalent mechanical seals (upper and lower)
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Complete Buna-N O-ring kit (all critical O-rings for installation)
Explore our full line up of Pump Repair Kits
Looking for more? Check out our Shaft seals,Parts/Accessories & OEM seals
Have questions?- Call us anytime-we’re here to help
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HOMA AK848-380/19.7 Repair Kit – 55mm Mechanical Seals
HOMA AK848-380/19.7 Repair Kit – 55mm Mechanical Seals
View ProductHOMA AK848-380/19.7 Repair Kit — 55 mm Mechanical Seals
Direct-fit replacement HOMA AK848-380/19.7 pump repair kit / pump seal kit for overhauling the seal assembly. This kit is built to OEM-equivalent performance and includes the critical sealing components needed for a clean, reliable rebuild.
Compatibility:
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Pump compatibility: Homa AK848-380/19.7
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Motor compatibility: AM243.23F/C/8/3-3
Materials:
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Seal faces: Silicon Carbide / Silicon Carbide (SiC/SiC)
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Elastomers: Viton (FKM)
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O-rings: Buna-N (NBR)
What’s included:
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55 mm OEM-equivalent mechanical seals (upper and lower)
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Complete Buna-N O-ring kit (all critical O-rings for installation)
Explore our full line up of Pump Repair Kits
Looking for more? Check out our Shaft seals,Parts/Accessories & OEM seals
Have questions?- Call us anytime-we’re here to help
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