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For 140 HP Johnson/Evinrude 1988-95 Looper models, 133-3508 is a timer base. Helps restore accurate spark timing on compatible outboard applications.
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Part #: 133-3508
Evinrude140 HPTimer BaseWeight: 2 lb
3.0 / 5  (29 votes)
For 140 HP Johnson/Evinrude 1988-95 Looper models, 133-3508 is a timer base. Helps restore accurate spark timing on compatible outboard applications.
List Price: $357.79
Your Price: $325.25
Normally In Stock

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

Replaces OEM#'s

583508, 763773, 763782

Product Details

Designed for reliable spark timing control, this marine timer base helps coordinate ignition advance events for smoother throttle response and stable engine performance.

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

Features

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

Common Symptoms of a Failing Timer Base

  • Erratic spark timing behavior
  • Intermittent ignition timing issues
  • Engine hesitation or misfire
  • RPM instability under acceleration

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.