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For 8 HP Mercury/Mariner models with Serial # OA197112 and UP Helps deliver high-voltage spark to the plugs for smooth engine operation, 5186 is an ignition coil. Helps correct weak spark, misfire, or hard-starting conditions.
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Part #: 5186
Mercury8 HPCoilWeight: 1 lb
4.0 / 5  (33 votes)
For 8 HP Mercury/Mariner models with Serial # OA197112 and UP Helps deliver high-voltage spark to the plugs for smooth engine operation, 5186 is an ignition coil. Helps correct weak spark, misfire, or hard-starting conditions.
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.

Precision-wound secondary windings and sealed construction are designed to maintain ignition stability while operating in high-humidity marine conditions.

Features

  • Helps support consistent spark delivery
  • Helps reduce intermittent ignition misfire
  • High-voltage ignition output design
  • Epoxy-sealed marine-grade construction

Common Symptoms of a Failing Ignition Coil

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