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5186 is a replacement ignition coil used on 70 HP Mercury/Mariner models with Serial # 5579016 thru OD283221 Helps deliver high-voltage spark to the plugs for smooth engine operation. Delivers high-voltage spark to the plug for reliable combustion.
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Part #: 5186
Mercury70 HPCoilWeight: 1 lb
3.0 / 5  (35 votes)
5186 is a replacement ignition coil used on 70 HP Mercury/Mariner models with Serial # 5579016 thru OD283221 Helps deliver high-voltage spark to the plugs for smooth engine operation. Delivers high-voltage spark to the plug for reliable combustion.
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

  • Helps support consistent spark delivery
  • Helps reduce intermittent ignition misfire
  • Precision-wound insulated copper windings
  • High-voltage ignition output design

Common Symptoms of a Failing Ignition Coil

  • Rough idle or hesitation
  • Engine misfire under load
  • Loss of power at higher RPM
  • Hard starting conditions

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.