Sierra ESA Conversion Kit 18-99379 for OMC-VP Electronic Shift Assist with Pertronix Ignition

The Sierra 18-99379 ESA Conversion Kit is an electronic shift assist conversion kit designed for OMC-VP applications equipped with a Pertronix electronic ignition setup. This kit is built for the Johnson Evinrude application and is supplied as a complete, ready-to-install package containing one full kit. It allows a distributor system running Pertronix electronic ignition to be converted for use with an electronic shift assist (ESA) arrangement, giving boat owners a way to update or restore proper shift assist function on applicable OMC-VP powered engines without sourcing multiple separate parts.

The kit uses copper-based components in its construction, supporting reliable electrical conductivity for the ignition and shift assist circuit. As a conversion kit, it is intended for technicians and boat owners performing ignition or shift assist repairs and upgrades who need a single-part-number solution rather than assembling individual components. Because it ships as one complete kit, installation follows a straightforward swap-in process consistent with the original OMC-VP wiring configuration.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-99379
• Material: Copper
• Weight: 1.14 pounds
• Application: Johnson Evinrude
• Fitment: OMC-VP with Pertronix electronic ignition
• Package Quantity: 1

Fitment

• Johnson Evinrude application, OMC-VP with Pertronix electronic ignition

Frequently Asked Questions

What is the Sierra 18-99379 ESA Conversion Kit used for? It is an electronic shift assist conversion kit that lets an OMC-VP ignition system running Pertronix electronic ignition be converted for proper ESA (electronic shift assist) function, part number 18-99379.

Does this kit fit Johnson Evinrude engines? Yes, the Sierra 18-99379 conversion kit lists Johnson Evinrude as its application.

Is a Pertronix ignition required for this conversion kit to work? Yes, the 18-99379 kit is designed specifically for OMC-VP setups that already use a Pertronix electronic ignition.

How many pieces come in the kit? The package quantity is 1, meaning the Sierra 18-99379 ships as a single complete conversion kit.

What material is used in the kit's construction? Copper is the primary material used in the Sierra 18-99379 ESA conversion kit.

How much does the kit weigh? The Sierra 18-99379 ESA Conversion Kit weighs 1.14 pounds.

Is this a full replacement distributor or just a conversion kit? It is a conversion kit, not a complete distributor; the 18-99379 is intended to convert an existing OMC-VP distributor setup with Pertronix ignition to support electronic shift assist.

Who would need this part, a DIYer or a marine technician? Both can use the Sierra 18-99379 kit, since it is packaged as a single complete part number rather than individual components, simplifying installation for either a boat owner or a technician.

Does the 18-99379 kit include installation hardware or just the electrical components? The dossier for the Sierra 18-99379 confirms it is supplied as one complete kit (package quantity 1); specific hardware contents beyond the copper conversion components are not detailed.

Can this kit be used on engines without Pertronix ignition installed? The Sierra 18-99379 kit is specifically built for OMC-VP applications that already have Pertronix electronic ignition in place.