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5186 is an ignition coil built for 75 HP 3cyl Mercury/Mariner models with Serial # OC272000 thru OD283221 and 4cyl models with Serial # 643291 and UP Helps deliver high-voltage spark to the plugs for smooth engine operation. Helps correct weak spark, misf
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Part #: 5186
Mercury75 HPCoilWeight: 1 lb
4.0 / 5  (30 votes)
5186 is an ignition coil built for 75 HP 3cyl Mercury/Mariner models with Serial # OC272000 thru OD283221 and 4cyl models with Serial # 643291 and UP Helps deliver high-voltage spark to the plugs for smooth engine operation. Helps correct weak spark, misf
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.

The assembly uses heavy-duty insulated copper windings and an epoxy-filled housing to help resist moisture intrusion, corrosion, and damaging engine vibration.

Features

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

Common Symptoms of a Failing Ignition Coil

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

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.