My Account
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order

Sierra 118-5790-1 Switch Box CDI Unit for Marine Outboard Ignition

Manufacturer

Picture for manufacturer Sierra

Part Number

118-5790-1
5 reviews
Sale Price

$276.78

1 left at this price

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 118-5790-1 switch box is a critical ignition component designed for marine outboard motors. This capacitor discharge ignition (CDI) unit controls the timing and delivery of electrical current to the engine's ignition coils, ensuring reliable starts and optimal engine performance.

Key Features:

  • Direct replacement CDI switch box for marine applications
  • Precision-engineered to OEM specifications for reliable ignition timing
  • Solid-state electronics for durability in harsh marine environments
  • Corrosion-resistant construction withstands saltwater exposure
  • Quality-tested to ensure consistent spark delivery and engine performance

Sierra is a trusted name in marine replacement parts, offering dependable alternatives to OEM components. This switch box is designed to restore proper ignition function to compatible outboard motors, providing boaters with reliable starting and smooth operation.

When others said they could not ship the product to me, they said due to shipping restrictions, these guys could and did. Thank you.

Gracias recibido el pedido en tiempo y buen estado la mercancía

Good

Easy to order

Great

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