My Account
Shopping Cart

Sierra 18-99393 Mercury Trigger Assembly 3 Cylinder Short Arm

Manufacturer

Part Number

18-99393
Sale Price

$132.61

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-99393 is a replacement trigger assembly designed for Mercury 3-cylinder outboard engines with short arm configuration. This ignition trigger component is a critical part of the engine's electronic ignition system, responsible for sending timing signals to the CDI or power pack to control spark timing.

Key Features:

  • Direct replacement for Mercury marine outboard engines
  • Designed specifically for 3-cylinder applications
  • Short arm trigger configuration
  • Precision-engineered to OEM specifications for reliable ignition timing
  • Manufactured by Sierra, a trusted name in aftermarket marine parts

This trigger assembly is engineered to meet or exceed OEM performance standards, ensuring proper ignition system operation and reliable engine performance. Sierra marine parts are known for quality construction and are widely used by marine technicians and boat owners for engine maintenance and repair.

Quick and easy

I didn't favor the automatic additional payment options selected for me, such as the insurance and the 2-day shipping options. I feel that permissions should be prompted during the ordering process.

Quick shipping

perfect

Everything looks great so far.

Awesome

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy