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5186 is a replacement ignition coil used on 150 HP Mercury/Mariner models with Serial #5129480 thru OG960499 Helps deliver high-voltage spark to the plugs for smooth engine operation. Supports strong plug firing for smoother idle and acceleration.
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Part #: 5186
Mercury150 HPCoilWeight: 1 lb
4.0 / 5  (34 votes)
5186 is a replacement ignition coil used on 150 HP Mercury/Mariner models with Serial #5129480 thru OG960499 Helps deliver high-voltage spark to the plugs for smooth engine operation. Supports strong plug firing for smoother idle and acceleration.
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

  • Epoxy-sealed marine-grade construction
  • Designed for harsh marine environments
  • Precision-wound insulated copper windings
  • Helps support consistent spark delivery

Common Symptoms of a Failing Ignition Coil

  • Weak or intermittent spark
  • Engine misfire under load
  • No spark on one cylinder
  • Loss of power at higher RPM

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.