CDI Electronics 423-7731 OMC Electronic Shift Assist ESA Adapter Harness

The CDI Electronics 423-7731 is an Electronic Shift Assist (ESA) adapter harness designed for OMC sterndrive applications. This adapter harness converts a single 5-wire connection to separate 4-pin and 2-pin connectors, enabling proper integration with OMC sterndrive electronic shift assist systems.

Key Features:

• Adapts single 5-wire connector to 4-pin and 2-pin configuration
• Designed for OMC sterndrive ESA systems
• Replaces OEM part numbers 987700 and 987731
• Essential for electronic distributor conversions and ESA module installations
• Compatible with Delco HEI coil-in-cap distributors

The ESA system helps prevent engine stalling when shifting into neutral by momentarily retarding ignition timing during gear changes. This adapter harness is critical when upgrading from points-type ignition systems to electronic ignition or when replacing ESA modules on OMC sterndrive engines. CDI Electronics manufactures this harness to meet or exceed OEM specifications for reliable performance.