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Sierra 18-99253 Ignition Control Module for Mercury Outboards

Manufacturer

Picture for manufacturer Sierra

Part Number

18-99253
7 reviews
Sale Price

$346.67

In Stock (5)

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Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-99253 Ignition Control Module is a premium aftermarket replacement for Mercury Marine part number 857185T1. This essential electronic component manages ignition timing and spark delivery for reliable engine performance on V-135 and larger Mercury and Mariner outboard motors.

Key Features:

  • Direct replacement for Mercury 857185T1 ignition controller
  • Engineered for V-135 and up Mercury/Mariner outboards
  • Controls ignition timing for optimal spark delivery
  • Meets or exceeds OEM specifications for quality and durability
  • Designed to withstand harsh marine environments
  • Backed by Sierra's limited lifetime warranty

Sierra is a trusted name in marine engine components, offering professional-grade replacements that deliver OEM-level performance and reliability. This ignition control module is precision-engineered to maintain proper spark timing under demanding conditions, ensuring smooth operation and consistent power delivery from your Mercury outboard.

Easy to find, and place order. Communication was good once it shipped.

Grate customer service

It was a quick easy decision to purchase my new stainless steel prop through their site. Good job.

Had the part I needed. Great price and fast delivery

Just what I needed at a good price !

They had the part for my Mitivac at a better price and ordering was quick and delivery was on time.

By far the best price. Super fast shipping. Definatly reccomend Boatplicity.

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