Sierra 18-99470 Trigger Assembly for Mercury Outboard Ignition Repair Parts - 3-Cylinder

The Sierra 18-99470 Trigger Assembly is a precision-engineered replacement ignition component designed for Mercury and Mariner 3-cylinder outboard engines. This trigger assembly is a critical part of the ignition system, generating the signal that controls ignition timing for optimal engine performance.

Key Features:

• Engineered to meet or exceed OEM specifications for reliable performance
• Marine-grade construction built to withstand harsh saltwater environments
• Direct replacement for Mercury trigger assemblies
• Essential component for ignition system operation and engine timing

OEM Cross-Reference:

• Replaces Mercury Marine 300-888796
• Replaces Mercury Marine 653029, 300-F653029-1, F653029, F653029-1

Sierra provides premium-quality aftermarket replacements backed by extensive marine industry experience. This trigger assembly offers dependable performance at a value price compared to OEM parts, making it an excellent choice for outboard engine repairs and maintenance.

Note: This part number indicates the OEM equivalent is no longer available from Mercury Marine (NLA status). Sierra continues to manufacture this replacement component to support older engine models.