Your Cart

Sierra 18-99440 Timer Base for Johnson Evinrude 3 Cylinder Outboard

Manufacturer

Sierra

Picture for manufacturer Sierra

Part Number

18-99440
7 reviews
03/13/2036 6:30 AM
Sale Price

$307.20

In Stock (6)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Add To Cart

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 18-99440 Timer Base is a premium replacement ignition component designed for Johnson and Evinrude 3-cylinder outboard engines. This critical timing sensor works in conjunction with the power pack to deliver precise ignition timing signals, ensuring optimal engine performance and reliability.

Key Features:

  • Precision-engineered replacement for BRP part number 581251
  • Compatible with 1974-1978 Johnson/Evinrude 70HP and 75HP 3-cylinder outboards
  • Designed for engines with screw terminal power packs
  • Premium quality construction for extended service life
  • Meets or exceeds OEM specifications
  • Professional installation recommended

Sierra Marine is manufactured by Dometic and is known for producing high-quality replacement ignition components for marine applications. This timer base includes the sensor assembly needed for proper ignition system operation. Always verify compatibility with your specific engine model and year before installation.

Replaces: BRP/OMC 581251, 0581251, 580970 | CDI Electronics 133-1251

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

Easy and quick hope no problem on deliveries

Product worked great

Enjoyed my experience. Found what I was looking for and shipped very quickly

I was totally pleased with the service and the price.

Received order as promised, packaged well and items were exactly as advertised.

Excellent service

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