Sierra 18-99411 Oil Warning Module for Mercury Outboard 2-Stroke Engines

The Sierra 18-99411 Oil Warning Module is a direct replacement electronic component designed for Mercury and Mariner 2-stroke outboard engines with oil injection systems. This module is used in 2-stroke Mercury Outboards and SportJet engines with oil injection built from 1990-1999, providing critical monitoring of the oil injection system to protect your engine from damage.

Key Features:

• Direct OEM replacement for Mercury/Mariner oil warning systems
• Compatible with 2, 3, and 4-cylinder Mercury 2-stroke outboards (1990-1999)
• Works with SportJet engine applications
• Manufactured to meet or exceed OEM specifications
• Quality aftermarket alternative to expensive OEM parts

Replaces OEM Part Numbers:

• CDI Electronics: 144-4857-16
• Mercury: 14857A3, 14857A6, 14857A7, 14857A10, 14857A11, 14857A13, 14857A14, 14857A15, 14857A16, 8M0024341

This oil warning module monitors your engine's oil injection system and alerts you to low oil conditions before serious engine damage can occur. It's an essential safety component for any Mercury 2-stroke outboard with oil injection, ensuring reliable operation and protecting your investment in your marine engine.