
Sierra 18-5273 Mercruiser Tune Up Kit for V8 Thunderbolt HEI Ignitions Sierra high-quality engine parts are designed to meet OEM specifications. Fits GM V-8 engines with Thunderbolt IV & V...
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Sierra’s spark plug wire sets are designed exclusively for marine engines and are the highest quality marine sets available anywhere in the world. Sierra's sets are custom-tailored to each marine engine for a perfect fit. In addition, they have been thoroughly tested to ISO quality standards and will out perform any other marine wire set.
Lead Lengths:
Interchangeable with:
California Residents:
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov