Sierra Trigger for Mercury Mariner 3-Cylinder Outboard Engines - 18-99433

The Sierra 18-99433 is a trigger component built for Mercury Mariner 3-cylinder outboard engines. As part of the ignition system, the trigger works alongside the stator and related components to help generate the timing signal the engine's ignition system relies on for proper spark delivery. Sierra manufactures this trigger as a replacement component for boat owners and marine technicians servicing Mercury Mariner 3-cylinder outboards where the original trigger has failed or is due for replacement.

This part is categorized within Sierra's line of Mercury Outboard Stators and Triggers, a product family designed to restore ignition timing function on Mercury and Mariner outboard engines. Ordering by the exact part number, 18-99433, is the most reliable way to confirm this is the correct trigger for a 3-cylinder Mercury Mariner application before purchase.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-99433
• Product Name: Mercury Mariner Trigger - 3 Cyl.
• Product Category: Mercury Outboard Stators & Triggers
• Engine Configuration: 3 Cylinder
• Weight: 0.6 pounds
• UPC: 808282394646

Fitment

Designed for Mercury Mariner 3-cylinder outboard engines.

Frequently Asked Questions

What engines does the Sierra 18-99433 trigger fit? The Sierra 18-99433 is built for Mercury Mariner 3-cylinder outboard engines.

What is the part number for this trigger? This Mercury Mariner trigger is Sierra part number 18-99433.

How much does the 18-99433 trigger weigh? The Sierra 18-99433 trigger weighs 0.6 pounds.

What category does this part fall under? Sierra lists the 18-99433 trigger under its Mercury Outboard Stators & Triggers category.

Is the 18-99433 an OEM Mercury part? The 18-99433 is manufactured by Sierra as a replacement trigger, not a Mercury-branded OEM part.

What function does the trigger serve in the ignition system? The trigger is an ignition system component that works with the stator to help generate the timing signal used for spark delivery on Mercury Mariner 3-cylinder outboards.

Will this trigger work on a 4-cylinder or 6-cylinder Mercury outboard? No. The Sierra 18-99433 is specified for 3-cylinder Mercury Mariner outboard engines, not 4-cylinder or 6-cylinder configurations.

What is the UPC for the Sierra 18-99433 trigger? The UPC for the Sierra 18-99433 Mercury Mariner trigger is 808282394646.

How do I confirm this is the right trigger for my outboard? Match the Sierra part number 18-99433 and confirm your outboard is a Mercury Mariner 3-cylinder model before ordering.

Does Sierra make this trigger specifically for Mariner-branded engines too? Yes, the product name for part 18-99433 identifies it as a Mercury Mariner trigger for 3-cylinder engines, covering both Mercury and Mariner branding.