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Your cart is empty.Sierra products are engineered to meet today’s high horsepower engine demands and stand up in the harsh marine environment. All Sierra products meet or exceed the original equipment part it replaces. Sierra supplies many OEM engine manufacturers and boat builders hundreds of quality parts every day
Josh Sopczak
Reviewed in the United States on March 31, 2022
Worked great. Thick gaskets made of metallic material. Seated well and have no issues.
Tim Angevine
Reviewed in the United States on February 15, 2022
Works great
Adam
Reviewed in the United States on December 19, 2021
package arrived on time but it was missing a square riser manifold.
Steve
Reviewed in the United States on September 21, 2020
Fit and easy to install on my boat. Quick delivery.
Henry
Reviewed in the United States on May 6, 2020
Older reviews complain of “wrong” manifold gaskets but I received the “correct” ones. All good, can’t beat the price.*even the “wrong” ones would have worked fine.
Monkey
Reviewed in the United States on August 27, 2019
Perfect fit for mercruiser 5.7L 350. 1994. Would buy again if needed.
Scott McLaren
Reviewed in the United States on May 31, 2018
The square (manifold-to-elbow) gasket is as pictured; however the head-to-manifold gaskets that I received were not as pictured. The difference from the pieces I received and the ones pictured is that my parts have an addition bolt hole on the inner side of the outer ports.
william
Reviewed in the United States on March 28, 2017
Perfect fit at a great price
brad coxworth
Reviewed in Canada on May 21, 2016
great
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