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Sierra 18-99445 Mercury Mariner Adapter Harness Side Cowling to 8-Pin Plug

Manufacturer

Picture for manufacturer Sierra

Part Number

118-99445
5 reviews
Sale Price

$200.47

1 left at this price

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Usually delivered within 2 days

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Product Details

The Sierra 18-99445 adapter harness is designed to adapt older Mercury and Mariner outboard engines with side cowling connections to the newer 8-pin cannon plug configuration. This essential wiring adapter allows you to connect vintage engines with through-splash-pan connectors to modern control box harnesses, eliminating the need for complete rewiring when upgrading controls or replacing harnesses.

Key Features:

  • Adapts old-style side cowling connection to new 8-pin cannon plug
  • Compatible with Mercury and Mariner outboard engines
  • OEM replacement for Mercury part number 84-93669A2
  • Also known as CDI 421-4401
  • Precision-engineered for reliable electrical connections
  • Durable marine-grade construction for long service life

This adapter harness is an ideal solution for maintaining older Mercury and Mariner outboards while upgrading to modern boat control systems. Sierra marine parts meet or exceed OEM specifications for dependable performance in harsh marine environments.

Very easy, would like to see a cheaper shipping option especially with buying insurance on top.

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