Ignitions and Electrical› Ignition Components

SIERRAMARINE

POWER PACK, JOHNSON/EVINRUDE

$403.66

SKU: S08C 18-99329

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Sierra 18-99329 is a power pack for Johnson/Evinrude 250-300 HP Loop Charged Engines from 1988-1992, featuring Quick Start & S.L.O.W. technology and a 6700 RPM limit. It directly replaces CDI 113-4035 and Johnson/Evinrude 583471, 584034, and 584035.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandSIERRAMARINE
Part NumberS08C 18-99329

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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