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5186 is a replacement ignition coil used on 225 HP Mercury/Mariner models with Serial # 5628028 thru OG569900 Helps deliver high-voltage spark to the plugs for smooth engine operation. Used to replace aging coils exposed to heat, vibration, and moisture.
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Part #: 5186
Mercury225 HPCoilWeight: 1 lb
4.0 / 5  (11 votes)
5186 is a replacement ignition coil used on 225 HP Mercury/Mariner models with Serial # 5628028 thru OG569900 Helps deliver high-voltage spark to the plugs for smooth engine operation. Used to replace aging coils exposed to heat, vibration, and moisture.
List Price: $87.85
Your Price: $28.95
Normally In Stock

In Stock items ship same day if ordered before 3PM CST (excluding weekends and holidays)

Replaces OEM#'s

339-7370A13, 339-832757A4

Product Details

Designed for dependable ignition performance, this marine ignition coil helps transfer consistent spark energy for reliable combustion and throttle response.

Precision-wound secondary windings and sealed construction are designed to maintain ignition stability while operating in high-humidity marine conditions.

Features

  • Designed for harsh marine environments
  • Epoxy-sealed marine-grade construction
  • High-voltage ignition output design
  • Helps support consistent spark delivery

Common Symptoms of a Failing Ignition Coil

  • Hard starting conditions
  • Weak or intermittent spark
  • No spark on one cylinder
  • Engine misfire under load

Need Fitment Help?

Tell us your brand, horsepower, and part number. We can help verify fitment before you order.

Support PDF files appear on this page when available.