CDI Electronics 18-99514 OMC Sterndrive Electronic Shift Assist Module 123-7571

The CDI Electronics 18-99514 (123-7571) Electronic Shift Assist (ESA) Module is a direct-replacement shift assist module designed for OMC and Volvo sterndrive applications equipped with a Prestolite BID (Breakerless Inductive Distributor) ignition system. This module electronically reduces engine RPM during gear engagement, lightening the load on the outdrive gears and allowing the dog-style clutch to shift smoothly and reliably.

Key Features:

• Electronic Shift Assist (ESA) module for OMC/Volvo sterndrive systems
• Designed for use with Prestolite BID distributor ignition systems
• Compatible with 8-cylinder marine engines: GM 5.7L V8, Ford 5.0L, Ford 5.0L HO, and Ford 5.8L
• Reduces engine RPM at the moment of gear engagement to protect drivetrain components
• Direct replacement for multiple OEM part numbers
• Manufactured by CDI Electronics, a trusted name in marine ignition components

Replaces OEM Part Numbers: 987400, 987564, 987571, 987700, 987704, 987876, 987877, 763788 (0763788)

Also sold under Sierra Marine part number 18-99514 and CDI Electronics part number 123-7571. This ESA module is an essential component for maintaining smooth, low-impact shifting in OMC Cobra sterndrive systems and helps extend the service life of the outdrive gear set.