My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

CDI Electronics 18-99400 Mercury Racing Engine Harness Boat Side

Manufacturer

Picture for manufacturer Cdi Electronics

Part Number

18-99400
6 reviews
Sale Price

$297.61

In Stock (9)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The CDI Electronics 18-99400 is a premium replacement boat-side engine harness designed for Mercury Racing (MRC) marine engines. This harness serves as the critical electrical connection between the boat's electrical system and the engine, transmitting power, ignition signals, and sensor data.

Key Features:

  • Direct replacement for Mercury Racing OEM part number 474-9550
  • Boat-side harness configuration for streamlined installation
  • Marine-grade wiring and connectors resistant to corrosion and moisture
  • Engineered to OEM specifications for reliable performance
  • Pre-terminated connectors for plug-and-play installation

CDI Electronics is a trusted manufacturer of marine ignition and electrical components, offering quality alternatives to OEM parts. This harness is built to withstand the harsh marine environment while maintaining consistent electrical connections for optimal engine performance.

Cross Reference: Mercury Racing 474-9550

easy, best price

Great easy to use the website

Easy shopping

Fast easy Great pricing products were received sooner than expected

Had what I needed in stock and shipped it out quickly. Would have been nice to have the option to ship on my account and get it sooner. Overall good experience and I will come back if I need similar items.

The carton for the unit looked as if the box gad sat in water for so.e time. But luckily did not effect the unit inside.

Share icon
Return Policy
Returns are easy at Autoplicity

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