My Account
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order

Sierra 118-5791-1 CDM Ignition Pack for Mercury/Mariner Outboard Engines

Manufacturer

Picture for manufacturer Sierra

Part Number

118-5791-1
8 reviews
Sale Price

$373.91

In Stock (10)

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 Sierra 18-5791-1 Ignition Pack is a high-quality aftermarket Capacitor Discharge Module (CDM) designed as a direct replacement for select Mercury and Mariner outboard engines. This ignition pack is a critical component of the engine's capacitor discharge ignition (CDI) system, responsible for delivering precisely timed, high-voltage spark energy to the ignition coils and ultimately the spark plugs for reliable engine combustion.

Key Features:

  • Direct-fit replacement for OEM Mercury/Mariner CDM ignition packs
  • Engineered to meet or exceed original equipment manufacturer (OEM) specifications
  • Built to withstand harsh marine environments including moisture, vibration, and heat
  • Restores proper spark timing and ignition performance
  • Also known as a switch box or power pack in Mercury ignition system terminology

Part Number Reference:

  • Sierra Part Number: 18-5791-1
  • Manufacturer Part Number: 118-5791-1

Sierra International is a leading supplier of premium aftermarket marine replacement parts, offering coverage for thousands of marine engine applications. This CDM ignition pack is a reliable solution for restoring full ignition system function on compatible Mercury and Mariner outboard motors.

Product as advertised. Delivery as promised.

Quick ship. Thanx

It would have been better if you listed the dimensions so hopefully it fits

Product is at the harbor haven't seen it yet.

super easy and great prices

Very easy purchase

Ordering was easy and delivery was fast

I'm a first time buyer of your company and was impressed with the service. I Goggled what I needed..... your company website popped up, and I placed an order. Very easy and stress free! Will be buying from you in the future. Thanks!

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