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173-1670 is a replacement ignition stator used on 20 HP Johnson/Evinrude 1985-2005 models. Restores dependable ignition charging output in demanding marine conditions.
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Part #: 173-1670
Evinrude20 HPStatorWeight: 1 lb
3.0 / 5  (7 votes)
173-1670 is a replacement ignition stator used on 20 HP Johnson/Evinrude 1985-2005 models. Restores dependable ignition charging output in demanding marine conditions.
List Price: $35.99
Your Price: $32.75
Normally In Stock

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

Replaces OEM#'s

581670, 584504, 584840, 585073, 5000611

Product Details

This replacement stator is designed for stable output and long service life in harsh outboard environments where heat, moisture, and vibration are constant concerns. The design priorities are especially important on Johnson/Evinrude applications where ignition stability depends on clean stator output.

Stator Design

  • Epoxy encapsulation helps shield internal windings from moisture, vibration, and corrosion.
  • Laminated core sections help concentrate magnetic flux from the flywheel magnets for reliable electrical production.
  • Marine-grade lead wires and molded connectors help maintain dependable contact in a high-vibration environment.
  • Precision-wound copper coils are used to promote efficient voltage generation and stable output.

Ignition System Benefits

  • Helps restore ignition charge voltage for strong, repeatable spark output.
  • Supports dependable starting by delivering the voltage needed by the ignition module.
  • Helps reduce high-RPM breakup caused by weak or unstable stator output.
  • Supports smooth acceleration by helping the ignition system maintain consistent energy.

Common Ignition Symptoms

  • No-start conditions
  • Unstable ignition output
  • Spark loss after warm-up
  • Poor acceleration caused by weak ignition energy
  • High-rpm breakup

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.