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For 175 HP Johnson/Evinrude 1977-78 models, 133-1486 is a timer base. Supports proper ignition advance and reliable cylinder firing.
Representative image shown. Brand or product appearance may vary slightly depending on current inventory.

Part #: 133-1486
Evinrude175 HPTimer BaseWeight: 2 lb
4.0 / 5  (34 votes)
For 175 HP Johnson/Evinrude 1977-78 models, 133-1486 is a timer base. Supports proper ignition advance and reliable cylinder firing.
List Price: $370.39
Your Price: $337.10
Normally In Stock

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

Replaces OEM#'s

581486

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.

Precision pickup circuitry and marine-grade insulated wiring are designed to resist moisture intrusion, corrosion, and continuous engine vibration.

Features

  • Precision ignition timing synchronization
  • Supports dependable throttle response
  • Helps maintain accurate ignition advance operation
  • Marine-grade sealed construction

Common Symptoms of a Failing Timer Base

  • Hard starting conditions
  • Erratic spark timing behavior
  • RPM instability under acceleration
  • 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.