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Sierra Marine exhaust manifold gaskets are engineered to meet or exceed manufacturer specifications—and provide added value to boaters and marine mechanics. Exhaust manifolds take a beating in the watercraft environment and require regular inspection to avoid catastrophic engine failure. After an inspection (or replacement), it's equally important to replace the gaskets. Sierra Marine offers gaskets in a variety of configurations for direct-fitment on most popular engine make applications. Sierra Marine exhaust manifold gaskets are designed to perfectly match the exhaust ports for your engine.
( 3 )
$21.99
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$27.99
Sierra Marine head gaskets will meet your marine engine's original equipment requirements for leak-free performance. They offer a huge assortment of high-quality gaskets to service many applications. Sierra Marine head gaskets will keep your boat's engine in prime condition for the best on-the-water experience.
( 3 )
$24.99
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$40.99
Sierra Marine intake manifold gaskets are perfect replacements designed to help you maintain your high-performing marine engine. Made from quality material, these gaskets meet or exceed OEM specifications in quality and performance of the original part they are replacing. Order the application you need.
Not Yet Reviewed
$27.99
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$50.99
A leak-free seal is important. Sierra Marine valve cover gaskets are available in many designs and material options to create a confident seal between your watercraft's valve covers and exhaust manifold. The gaskets are designed to meet OEM specifications to offer a perfect fit.
Not Yet Reviewed
$23.99
When you only need the bellows and not a whole transom seal kit, Sierra Marine can help. They offer several different U-joint bellows to fit different applications. Made from durable materials, these accordion-shaped parts, when clamped in place, offer protection from the water. Maintaining the bellows on your boat is important. Sierra Marine can help with their selection of replacements. Bellows may or may not include clamp(s).
( 1 )
$47.99
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$48.99
Sierra Marine exhaust manifold mounting kits include the necessary parts needed to help complete your manifold installation. Each component in the kit is engineered to meet or exceed manufacturer's specifications to ensure the proper fit and function. Take the time out of sourcing parts with Sierra exhaust manifold mounting kits—these pre-assembled kits are a time saver! Order the exhaust manifold mounting kit suited to fit your application needs.
Not Yet Reviewed
$22.99
Sierra Marine offers timing cover seals for a variety of watercraft makes—including Mercury, OMC, Mallory, Volvo Penta, Mercruiser, and Evinrude/Johnson. These replacement parts meet or exceed the original equipment. Order the model recommended for your vessel.
Not Yet Reviewed
$23.99
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$28.99
Sierra Marine offers rear main seals for a wide range of watercraft makes—including Crusader, Mercruiser, OMC, Pleasurecraft, Volvo Penta, Mallory, and GLM. The one- or 2-piece rubber O-ring seals are designed for the crankshaft of various marine engine models. Order the replacement rear main seal recommended for your vessel.
Not Yet Reviewed
$24.99
Sierra Marine oil seals are available to fit most applications on the water today. Their varying selection offers the best quality materials, along with the proper fit and function to equal or go beyond the OE oil seals they are replacing. For confident, leak-free performance choose Sierra Marine for your oil seals.
Not Yet Reviewed
$25.99
Sierra Marine transom seal kits provide components to remove and reinstall your boat's sterndrive. Their kit offerings are available for many applications with parts that will fit and function as the originals they are replacing. Service the rear of your boat with the leak-free sealing of Sierra transom kits.
Not Yet Reviewed
$29.99
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