Sierra 18-99216 Johnson/Evinrude CD4/8 Power Pack - Replaces 763797, Fits 88-120 HP (1986-1988) & 200-275 HP (1986-1987)

The Sierra 18-99216 is a CD4/8 ignition power pack built as a direct replacement for Johnson and Evinrude outboard engines. It serves as the electronic control module in the capacitor discharge ignition system, managing spark timing and delivery across the engine's cylinder bank. This power pack is a bolt-on installation with a male connector, designed to swap in for the original unit without modification.

It is engineered to fit Johnson/Evinrude 4-cylinder outboards rated 88, 90, 100, 110, and 120 HP from 1986-1988, as well as 8-cylinder outboards rated 200 and 275 HP from 1986-1987. The unit cross-references to a wide range of OEM part numbers, making it a straightforward replacement for boat owners servicing an aging ignition system or replacing a failed original power pack. At 0.9 pounds, it is a compact, lightweight electronic component suited for mounting within the engine's ignition housing.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-99216
• Category: Evinrude Outboard Power Packs
• UPC: 808282393854
• Weight: 0.9 pounds
• Connector Gender: Male
• Installation Type: Bolt-On
• Unit Count: 1
• Compatible Engines: Johnson/Evinrude 88, 90, 100, 110, 120 HP (1986-1988, 4 cylinder); 200, 275 HP (1986-1987, 8 cylinder)

Fitment

• Johnson/Evinrude 88, 90, 100, 110, 120 HP outboards, 1986-1988, 4 cylinder
• Johnson/Evinrude 200, 275 HP outboards, 1986-1987, 8 cylinder

Replaces (OEM)

• 763797
• 581404
• 583336
• 583101
• 583102
• 583103
• 583037
• 583041
• 582262

Frequently Asked Questions

What engines does the Sierra 18-99216 power pack fit? It fits Johnson/Evinrude 4-cylinder outboards rated 88, 90, 100, 110, and 120 HP from 1986-1988, and 8-cylinder outboards rated 200 and 275 HP from 1986-1987.

What OEM part numbers does the 18-99216 replace? The Sierra 18-99216 cross-references to OEM numbers 763797, 581404, 583336, 583101, 583102, 583103, 583037, 583041, and 582262.

How much does this power pack weigh? The Sierra 18-99216 CD4/8 power pack weighs 0.9 pounds.

Is this a direct bolt-on replacement? Yes, the 18-99216 is a bolt-on installation designed to fit in place of the original Johnson/Evinrude power pack without modification.

What type of electrical connector does it use? The Sierra 18-99216 uses a male connector for its wiring harness connection.

How many power packs come in the package? The Sierra 18-99216 is sold as a single unit, one power pack per package.

Will this work on an 8-cylinder Evinrude engine? Yes, in addition to 4-cylinder applications, the 18-99216 also fits 8-cylinder Johnson/Evinrude outboards rated 200 and 275 HP from 1986-1987.

Does the 18-99216 fit a 90 HP Johnson from 1987? Yes, the 18-99216 is designed for Johnson/Evinrude 4-cylinder 88-120 HP outboards spanning 1986-1988, which includes a 1987 90 HP model.

What does a power pack do on an outboard motor? On the CD4/8 ignition system used by these Johnson/Evinrude outboards, the power pack is the electronic module that stores and discharges the capacitor charge to fire the spark plugs at the correct timing.

Is the 18-99216 compatible with both 4 and 8 cylinder models? Yes, the Sierra 18-99216 covers both the 4-cylinder 88-120 HP range and the 8-cylinder 200-275 HP range listed in its fitment.