Sierra 18-5107-1 Marine Ignition Module for GM Delco HEI Distributors

The Sierra 18-5107-1 is a premium aftermarket ignition module designed for marine applications with GM-based engines equipped with Delco Electronic Spark Timing (EST) and High Energy Ignition (HEI) distributors. This module is engineered to deliver reliable spark control for 4-cylinder, V-6, and V-8 marine engines, ensuring dependable starting and smooth operation in harsh marine environments.

Key Features:

• Direct replacement for Delco electronic ignition distributors (pre-2002 models)
• Compatible with Mercury, MerCruiser, OMC, Volvo Penta, and Crusader marine engines
• Fits 4, 6, and 8 cylinder GM-based marine engines
• Meets or exceeds OEM specifications for quality and performance
• Precision-engineered for reliable ignition timing control

Replaces OEM Part Numbers: MerCruiser 811637001, 811637T, 811637, 802464, 850487, 811637002, 804412; OMC 3854003; Volvo Penta 3854003; Crusader 7243110; Mallory 9-29800; GLM 73190; Marine Power 483002; Pleasurecraft Marine R116014. Also replaces Sierra 18-5106 and 18-5107.

Sierra aftermarket parts are manufactured to meet or exceed original equipment standards, providing boat owners with a cost-effective, high-quality replacement solution for critical ignition system components.