Sierra Power Pack 18-5764 for Evinrude 25 HP COM. 1986-88 Outboard Motors

The Sierra 18-5764 Power Pack is an ignition control module for Evinrude 25 HP COM. Outboard motors built 1986-88. It replaces the outboard's original power pack, restoring reliable spark timing and ignition performance when the factory unit fails or begins to misfire. As an electronic component, it plays a central role in the ignition system, regulating the timing and delivery of spark to the engine's cylinders.

This power pack is manufactured to match the fit and function of the original equipment unit for its listed application, making it a straightforward swap for outboard owners performing an ignition system repair. It is sold as a standalone replacement part and is intended for technicians and boat owners familiar with outboard ignition service.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-5764
• Product Type: Power Pack
• Weight: 0.75 pounds

Fitment

• Evinrude 25 HP COM., 1986-88

Frequently Asked Questions

What is the Sierra 18-5764 power pack used for? It is an ignition control module for Evinrude 25 HP COM. Outboard motors from 1986-88, regulating spark timing so the engine fires correctly.

Which outboard motors does part 18-5764 fit? This power pack fits Evinrude 25 HP COM. Outboards built in 1986-88.

Does the 18-5764 power pack fit other Evinrude horsepower models? The 18-5764 is designated specifically for the 25 HP COM. 1986-88 application; other Evinrude horsepower ratings and years use different Sierra power pack part numbers.

How much does the Sierra 18-5764 power pack weigh? The Sierra 18-5764 power pack weighs 0.75 pounds.

Is the Sierra 18-5764 a direct replacement part? Yes, the 18-5764 is designed as a replacement power pack for the listed Evinrude 25 HP COM. 1986-88 application.

What symptoms indicate a failing power pack on a 1986-88 Evinrude 25 HP? A failing power pack on this application typically causes ignition problems such as no spark, intermittent misfire, or the engine failing to start, which the Sierra 18-5764 is intended to correct when replaced.

Can I install the Sierra 18-5764 power pack myself? The 18-5764 is a standalone ignition component intended for installers familiar with outboard ignition system service and wiring.

What brand makes part number 18-5764? Part number 18-5764 is manufactured by Sierra.

Is the Sierra 18-5764 an OEM or aftermarket part? The 18-5764 is a Sierra-branded replacement power pack built to fit the original Evinrude 25 HP COM. 1986-88 application.

What category of part is 18-5764? Part number 18-5764 is a power pack, an ignition control component used on Evinrude outboard motors.