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Fits 140 HP Johnson/Evinrude 1977 models: 133-1900 is a timer base. Helps control ignition timing and cylinder firing position.
Representative image shown. Brand or product appearance may vary slightly depending on current inventory.

Part #: 133-1900
Evinrude140 HPTimer BaseWeight: 2 lb
4.0 / 5  (27 votes)
Fits 140 HP Johnson/Evinrude 1977 models: 133-1900 is a timer base. Helps control ignition timing and cylinder firing position.
List Price: $417.09
Your Price: $379.55
Normally In Stock

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

Replaces OEM#'s

385433, 581300, 581900, 763778

Product Details

This timer base assembly is engineered to provide accurate ignition timing synchronization and dependable trigger signal generation throughout the engine's RPM range.

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

Features

  • Helps maintain accurate ignition advance operation
  • Vibration-resistant electronic components
  • Marine-grade sealed construction
  • Designed for stable CDI timing signals

Common Symptoms of a Failing Timer Base

  • Intermittent ignition timing issues
  • Ignition timing drift after warm-up
  • Erratic spark timing behavior
  • Hard starting conditions

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.