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5186 is a replacement ignition coil used on 50 HP 4cyl Mercury/Mariner models with Serial # 5531630 and UP and 3cyl models with Serial # 6428681 thru OG589999 Helps deliver high-voltage spark to the plugs for smooth engine operation. Used to replace agin
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Part #: 5186
Mercury50 HPCoilWeight: 1 lb
4.0 / 5  (27 votes)
5186 is a replacement ignition coil used on 50 HP 4cyl Mercury/Mariner models with Serial # 5531630 and UP and 3cyl models with Serial # 6428681 thru OG589999 Helps deliver high-voltage spark to the plugs for smooth engine operation. Used to replace agin
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

Built for harsh outboard environments, this ignition coil supports clean spark delivery and dependable cylinder firing throughout the engine's operating range.

Marine-grade internal windings and vibration-resistant epoxy encapsulation help protect the coil from heat cycling, humidity, and electrical breakdown.

Features

  • High-voltage ignition output design
  • Helps reduce intermittent ignition misfire
  • Helps support consistent spark delivery
  • Designed for harsh marine environments

Common Symptoms of a Failing Ignition Coil

  • No spark on one cylinder
  • Weak or intermittent spark
  • Loss of power at higher RPM
  • 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.