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The Sierra 18-8841-1 is a premium MagForce spark plug wire set engineered as a direct-fit replacement for OMC Sterndrive and Cobra stern drive engines. Designed to meet or exceed OEM specifications, this wire set delivers reliable ignition performance in the demanding marine environment.
Sierra MagForce ignition wire sets are electronics-friendly, providing effective suppression of radio-frequency interference (RFI) and electromagnetic interference (EMI) to protect sensitive onboard electronics and engine control systems while ensuring maximum voltage delivery to each spark plug.
Key Features:
Sierra International is a leading supplier of premium aftermarket marine parts, offering replacements for over 6,000 marine components. The 18-8841-1 wire set is built to withstand the harsh conditions of saltwater and freshwater marine use, making it an ideal replacement for worn or damaged ignition wires on compatible OMC Sterndrive and Cobra stern drive applications.
Spark Plug Wires
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