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Fits 85 HP Johnson/Evinrude 1973-77 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
Evinrude85 HPTimer BaseWeight: 2 lb
4.0 / 5  (34 votes)
Fits 85 HP Johnson/Evinrude 1973-77 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.

The assembly uses sealed electronic components and vibration-resistant construction to help maintain stable ignition timing performance under demanding marine operating conditions.

Features

  • Designed for stable CDI timing signals
  • Supports dependable throttle response
  • Vibration-resistant electronic components
  • Marine-grade sealed construction

Common Symptoms of a Failing Timer Base

  • Erratic spark timing behavior
  • Hard starting conditions
  • Intermittent ignition timing issues
  • Engine hesitation or misfire

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.