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Flygt Plug-In 45 mm Seal Kit — Double Cartridge Mechanical Seal

Replacement 45 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 (45 mm shaft)

• Flygt pumps: 3171, 4650, 4660, 5100.250, 5100.251, 5100.260, 5100.261

• Cross-reference / part no.: (varies by build—contact us to confirm)

What’s included

• 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

1. Cartridge mechanical seal only

2. 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 

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Explore our full line up of Pump Repair Kits

Looking for more? Shop  Shaft seals, Parts & Accessories, and Pre-Cut Gaskets.

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