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Fits 15 HP Mercury/Mariner 1997-2006 models with Serial # OG760300 thru 1B000299: 174-5721 is an ignition stator. Supplies electrical output for the ignition system on compatible engines.
Representative image shown. Brand or product appearance may vary slightly depending on current inventory.

Part #: 174-5721
Mercury15 HPStatorWeight: 2 lb
4.0 / 5  (31 votes)
Fits 15 HP Mercury/Mariner 1997-2006 models with Serial # OG760300 thru 1B000299: 174-5721 is an ignition stator. Supplies electrical output for the ignition system on compatible engines.
List Price: $209.39
Your Price: $190.55
Normally In Stock

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

Replaces OEM#'s

855721A4, 855721T8

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.

Materials & Build Quality

  • High-temperature insulation helps protect the windings from heat cycling inside the engine cowling.
  • Marine-grade lead wires and molded connectors help maintain dependable contact in a high-vibration environment.
  • Vibration-resistant construction helps reduce the chance of intermittent output caused by loose or damaged windings.
  • Precision-wound copper coils are used to promote efficient voltage generation and stable output.

Key Functional Details

  • Engineered to meet OEM-style electrical output characteristics.
  • Helps correct intermittent spark loss caused by heat-sensitive stator windings.
  • Designed for use in wet, hot, and vibration-heavy marine engine compartments.
  • Helps reduce high-RPM breakup caused by weak or unstable stator output.

Failure Symptoms to Check

  • No-start conditions
  • Engine misfire under load
  • Unstable ignition output
  • Charging output problems where the stator also supports charging circuits
  • Poor acceleration caused by weak ignition energy

Clean grounds, sound connectors, and correct flywheel condition are important for reliable stator performance after replacement.

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.