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For 90 HP 6cyl Mercury/Mariner models with Serial # 5299506 and UP and 3cyl models with Serial # OA996142 thru OG437999 and 3cyl Sport Jet models with Serial # OE021000 thru OE095087 Helps deliver high-voltage spark to the, 5186 is an ignition coil. Deliv
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Part #: 5186
Mercury90 HPCoilWeight: 1 lb
4.0 / 5  (29 votes)
For 90 HP 6cyl Mercury/Mariner models with Serial # 5299506 and UP and 3cyl models with Serial # OA996142 thru OG437999 and 3cyl Sport Jet models with Serial # OE021000 thru OE095087 Helps deliver high-voltage spark to the, 5186 is an ignition coil. Deliv
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

This ignition coil is engineered to deliver stable high-voltage spark energy across varying RPM ranges and demanding marine operating conditions.

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

Features

  • Precision-wound insulated copper windings
  • Helps reduce intermittent ignition misfire
  • Epoxy-sealed marine-grade construction
  • Helps support consistent spark delivery

Common Symptoms of a Failing Ignition Coil

  • Rough idle or hesitation
  • No spark on one cylinder
  • Weak or intermittent spark
  • 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.