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For 10 HP Johnson/Evinrude 1985-94 models, 133-3387 is a timer base. Used when timing signal problems cause misfire, hard starting, or poor acceleration.
Brand or product appearance may vary slightly depending on current inventory.

Part #: 133-3387
Evinrude10 HPTimer BaseWeight: 1 lb
4.0 / 5  (27 votes)
For 10 HP Johnson/Evinrude 1985-94 models, 133-3387 is a timer base. Used when timing signal problems cause misfire, hard starting, or poor acceleration.
List Price: $87.49
Your Price: $61.40
Normally In Stock

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

Replaces OEM#'s

583387, 584716, 585072

Product Details

Built for harsh marine environments, this timer base supports dependable ignition timing accuracy and consistent CDI trigger operation.

Marine-grade insulation materials and sealed trigger components help protect the timer base from humidity, heat cycling, and electrical interference.

Features

  • Marine-grade sealed construction
  • Vibration-resistant electronic components
  • Precision ignition timing synchronization
  • Supports dependable throttle response

Common Symptoms of a Failing Timer Base

  • RPM instability under acceleration
  • Intermittent ignition timing issues
  • Erratic spark timing behavior
  • Ignition timing drift after warm-up

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.