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Quicksilver 443284 Water Jacket Cover Gasket for Mercury Outboard

Manufacturer

Picture for manufacturer Quicksilver

Part Number

443284
5 reviews
Sale Price

$23.58

3 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Quicksilver 443284 is an OEM water jacket cover gasket designed for Mercury and Mariner inline 4-cylinder outboard engines. This genuine Mercury Marine replacement part creates a critical seal between the cylinder head and the water jacket cover plate, preventing coolant leaks and maintaining proper engine cooling system function.

Key Features:

  • OEM quality gasket manufactured to Mercury Marine specifications
  • Designed for Mercury and Mariner 100-125hp inline 4-cylinder outboards
  • Seals the water jacket cover to prevent coolant leaks around the thermostat housing
  • Direct replacement for worn or damaged original gaskets
  • Essential component for water jacket cover service and powerhead repairs

This gasket is a common replacement part during routine outboard maintenance when addressing water jacket leaks or during thermostat service. Cross-references with OEM part numbers 27-443284, 27-443283, 27-443282, and 27-443281, as well as aftermarket equivalents GLM 37670 and Sierra 18-2402.

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