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For 45 HP 4cyl Mercury/Mariner models with Serial # 5531630 and UP Helps deliver high-voltage spark to the plugs for smooth engine operation, 5186 is an ignition coil. Supports strong plug firing for smoother idle and acceleration.
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Part #: 5186
Mercury45 HPCoilWeight: 1 lb
4.0 / 5  (16 votes)
For 45 HP 4cyl Mercury/Mariner models with Serial # 5531630 and UP Helps deliver high-voltage spark to the plugs for smooth engine operation, 5186 is an ignition coil. Supports strong plug firing for smoother idle and acceleration.
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

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

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

Features

  • Designed for harsh marine environments
  • High-voltage ignition output design
  • Epoxy-sealed marine-grade construction
  • Precision-wound insulated copper windings

Common Symptoms of a Failing Ignition Coil

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