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For 150 HP Mercury/Mariner 1973-77 models with Serial # 3502806 thru 4868997, 174-4793 is an ignition stator. Helps maintain stable spark energy across the operating range.
Representative image shown. Brand or product appearance may vary slightly depending on current inventory.

Part #: 174-4793
Mercury150 HPStatorWeight: 4 lb
4.0 / 5  (15 votes)
For 150 HP Mercury/Mariner 1973-77 models with Serial # 3502806 thru 4868997, 174-4793 is an ignition stator. Helps maintain stable spark energy across the operating range.
List Price: $547.49
Your Price: $498.25
Normally In Stock

In Stock items ship same day if ordered before 3PM CST (excluding weekends and holidays)

Replaces OEM#'s

398-3587, 398-3618, 398-4792, 398-4793, 398-5232

Product Details

Designed as a key charging source for the ignition circuit, this stator helps provide the electrical energy needed for smooth throttle response and dependable starting. The design priorities are especially important on Mercury/Mariner applications where ignition stability depends on clean stator output.

Design & Materials

  • Heavy-duty winding insulation helps prevent shorting between coil layers during extended operation.
  • High-temperature insulation helps protect the windings from heat cycling inside the engine cowling.
  • Vibration-resistant construction helps reduce the chance of intermittent output caused by loose or damaged windings.
  • Epoxy encapsulation helps shield internal windings from moisture, vibration, and corrosion.

Key Functional Details

  • Engineered to meet OEM-style electrical output characteristics.
  • Provides a dependable electrical source for the ignition system under real-world boating conditions.
  • Helps restore ignition charge voltage for strong, repeatable spark output.
  • Supports smooth acceleration by helping the ignition system maintain consistent energy.

Common Symptoms of Stator Failure

  • Hard starting
  • High-rpm breakup
  • No-start conditions
  • Unstable ignition output
  • Weak or intermittent spark

Always compare resistance and peak-voltage readings to the correct service specifications when diagnosing a suspected stator failure.

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.