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Your cart is empty.About Sierra Sierra is dedicated to protecting you and your investment. For 50 years Sierra, one of the most trusted names in the marine industry, has proudly been offering high quality engine and drive parts. Their products meet or exceed the original equipment part it replaces and are engineered to meet today's high horsepower engine demands while withstanding the harsh marine environment. Sierra's customer satisfaction warranty all Sierra parts qualify for sierra's industry leading customer satisfaction warranty. Sierra warrants its products to be free of defects in workmanship and materials for the useful life of the product. If a Sierra product fails to comply with the warranty, Sierra will repair or replace the defective product free of Charge. The warranty is Subject to additional terms, conditions and limitations. You can view sierra's full warranty located above in the technical specification section.
The Greek
Reviewed in the United States on September 5, 2024
The diameter of these wires are thicker than the OEM ones and the lengths are correct. I don't trust Sierra parts anymore since they've outsourced a lot of them from overseas vendors. But these wires are definitely well built.
nick m
Reviewed in the United States on February 27, 2024
Fitness was spot on. They are thicker than the mercruiser set I replaced. Pricing was very good as well.
Paula Hernandez
Reviewed in the United States on February 9, 2021
This did not fit my Volvo Penta 7.4 Marine engine. the boot for the spark plug is that a 90° angle it should be at 135 or straight.
Nicholas
Reviewed in the United States on September 25, 2018
finally found the plug set I was looking for without the huge marine markup
richard price
Reviewed in the United States on July 8, 2014
worked well
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