Sierra 18-99226 Timer Base for Evinrude/Johnson 3-Cylinder Outboards

The Sierra 18-99226 Timer Base is a precision ignition component designed for 3-cylinder Evinrude and Johnson outboard motors. This timer base is a critical part of the ignition system, controlling the timing of spark delivery to the engine cylinders for optimal performance and reliable starting.

Key Features:

• Direct replacement for Evinrude/Johnson 3-cylinder outboard engines
• Precision-engineered for accurate ignition timing control
• Manufactured by Sierra, a trusted name in marine replacement parts
• Designed to meet or exceed OEM specifications
• Ensures reliable spark timing for smooth engine operation

The timer base works in conjunction with the trigger assembly to signal the ignition coil when to fire. A faulty timer base can cause misfiring, rough running, hard starting, or complete ignition failure. This Sierra replacement part restores proper ignition timing to keep your outboard running at peak performance.