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5186 is a replacement ignition coil used on 9.9 HP Mercury/Mariner models with Serial # OA197112 and UP Helps deliver high-voltage spark to the plugs for smooth engine operation. Restores spark energy where the original ignition coil has weakened or fail
Brand or product appearance may vary slightly depending on current inventory.

Part #: 5186
Mercury9.9 HPCoilWeight: 1 lb
4.0 / 5  (15 votes)
5186 is a replacement ignition coil used on 9.9 HP Mercury/Mariner models with Serial # OA197112 and UP Helps deliver high-voltage spark to the plugs for smooth engine operation. Restores spark energy where the original ignition coil has weakened or fail
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, 339-7370B13, 339-832757B4, 9-23200

Product Details

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

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
  • Designed for harsh marine environments
  • Helps support consistent spark delivery

Common Symptoms of a Failing Ignition Coil

  • Hard starting conditions
  • No spark on one cylinder
  • Loss of power at higher RPM
  • Rough idle or hesitation

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.