Ignitions and Electrical› Ignition Components

SIERRAMARINE

V-6 DELCO EST CONVERSION KIT

$756.76

SKU: S08C 18-5513

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

Moderate — 2–4 hours

Description

This kit upgrades the ignition system of V6 4.3L GM marine engines to Delco EST (Electronic Spark Timing) style. It includes all necessary parts and replaces Marine Power 481058 and PSI 109148. This part is designed for 4.3L GM V6 marine engines, with fitment based on engine type.

Fitment

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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 18-5513

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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