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To service your boat engine yourself you will need some special tools. Sierra Marine lower unit fill tubes and kits can help. These flush and fill tools (standard or import) are for small gearcases requiring a 10 oz. tube of gear lube and include the appropriate lower unit fitting for specific applications. Sierra also offers the standard fill tube in a kit along with two 10 oz. tubes of gear lubricant. Choose the product(s) you need for your boat maintenance. Features of lubricant: * Recommended for all general marine applications requiring a GL-5 class lubricant * Ideal for replacing all old hypoid 90 application needs * Formulated for use in freshwater or saltwater conditions and all standard marine applications * Reduces friction and protects gears, bearings, and other gear case components * Amber color * 80W-90 weight
Not Yet Reviewed
$56.99
Sierra Marine drive unit caps are made to outperform the original equipment part(s) they are replace. Each Sierra product is engineered to withstand the harsh marine environment while meeting today's high horsepower engine specifications. Order the drive unit component designed for your application.
Not Yet Reviewed
$253.99
Sierra Marine lower unit seal kits consist of the necessary parts needed to help complete repairs. Each component in the kit is engineered to meet or exceed manufacturer's specifications to ensure the proper fit and function—plus, these pre-assembled lower unit seal kits are a real time saver! For OEM performance at a value price, look no further than to Sierra Marine.
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$28.99
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$31.99
Sierra Marine supplies a wide range of OEM-equivalent parts to maintain and/or repair your watercraft, including driveshaft housing gaskets. These gaskets meet or exceed the original equipment part they replace and are engineered to meet today's high horsepower engine demands while withstanding the harsh marine environment. For over 50 years, Sierra Marine has supplied the best aftermarket parts in the marine industry—so boaters can enjoy the best of times on the water. Upgrade your boat today with these replacement marine drive unit components from Sierra Marine.
Not Yet Reviewed
$7.99
Sierra Marine offers anchor screws for use with Mercruiser #1R, MR, Alpha, Alpha I, Gen II, and Bravo stern drives. These marine drive unit components are designed to meet or exceed the original part(s) they replace. For 50 years, Sierra Marine has proudly offered high-quality engine and drive parts as a trusted name in the marine industry. All their products are engineered to meet today's high horsepower engine demands, while withstanding the harsh marine environment. Order the anchor screws for your application.
Not Yet Reviewed
$41.99
Sierra pinion nuts are constructed with premium, long-lasting, non-corrosive material that can resist the harsh sea climate. These pinion nuts are designed to connect to the steering shaft so that the gear will spin and move the rack when you turn the steering wheel. Each Sierra product is made to meet or exceed the original equipment part it replaces. Keep your boat on the water and running strong with Sierra marine drive unit components.
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$4.99
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$20.99
Sierra Marine makes measuring the clearance on your drive units a piece of cake when using their shimming tools. They are made for all different setups and come specific to your needs. Get back on the water with a properly installed gear thanks to Sierra drive shimming tools.
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$3.99
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$20.99
Sierra Marine shafts meet or exceed the original equipment part it replaces. These marine drive unit components are available for use in Mercruiser Alpha, Gen II, Bravo I/II/III and Vazer engine applications. Includes one upper swivel gimbal ring shaft. Order the model for your application needs.
Not Yet Reviewed
$320.99
Sierra Marine offers prop shafts developed for use with OMC and Johnson/Evinrude engines. They have a lot of great features, including exceptional performance quality, durability, and high reliability. Sierra's propeller shafts are made with the industry's best-grade materials and are finished with a minimal quality of leftover tensions, and they are corrosion-resistant. All Sierra products are equal to or better than the original equipment parts that they are meant to replace. For more than 50 years, Sierra has been unmatched in quality and backed by rigorous engineering, testing, and manufacturing standards to produce the best parts in the marine industry. Sierra Marine's commitment to excellence ensures the highest degree of confidence where it counts the most: out on the water. Order the prop shaft designed for your application needs.
Not Yet Reviewed
$173.99
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$379.99
Specialty tools make your job easier, like Sierra Marine bearing carrier retainer tools. They are designed to loosen and tighten the bearing carrier retainers on Bravo Two drives. Service your boat with the help of Sierra Marine.
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$3.99
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$5.99
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
$197.99
Sierra Marine supplies a wide range of OEM-equivalent parts to maintain and/or repair your watercraft, including rope seal gaskets. These gaskets meet or exceed the original equipment part they replace and are engineered to meet today's high horsepower engine demands while withstanding the harsh marine environment. For over 50 years, Sierra has supplied the best aftermarket parts in the marine industry—so boaters can enjoy the best of times on the water. Upgrade your boat with Sierra Marine rope seal gaskets.
Not Yet Reviewed
$17.99
When you only need the bellows and not a whole transom seal kit, Sierra Marine can help. They offer several different shift cable bellows to fit different applications. Made from durable materials, these accordion-shaped parts, when clamped in place, offer protection from 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).
Not Yet Reviewed
$4.99
Sierra Marine drain plugs are available in magnetic and non-magnetic styles. They provide a direct-fit for missing OE plugs and will keep fluids in and contaminants out. For everything marine, big and small components, Sierra Marine will help you repair and maintain your boat.
Not Yet Reviewed
$129.99
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$151.99
Sierra Marine offers kits to help you rebuild your gear box. Each kit contains the gears you need to get your boat back on the water. Order the model recommended for your watercraft engine application.
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$94.99
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$1,198.99
Sierra Marine upper gear kits replace old worn gears with renewed performance. Offering an OE fit and function, Sierra's selection includes kits with gears, gears and seals, and kits with gears, seals, gaskets, and bearings to service different applications.
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$158.99
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$1,155.99
When your existing gaskets show any sign of wear, simply replace them with these high-quality housing gaskets from Sierra Marine to create a positive seal. Each Sierra product meets the specifications of the original equipment part it replaces. Order the gaskets recommended for your application needs.
Not Yet Reviewed
$7.99
Sierra Marine outdrive gasket sets are high-quality seals designed to meet or exceed OEM requirements. Each replacement set contains the gaskets you need to get your outboard installed and keep it leak-free. Order the set recommended for your marine application.
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$28.99
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.
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$2.99
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$26.99
Sierra Marine retaining springs are high-quality replacement components made to meet or exceed the original equipment part it replaces. For 50 years Sierra, one of the most trusted names in the marine industry, has proudly been offering high-quality engine and drive parts, engineered to meet today's high horsepower engine demands while withstanding the harsh marine environment. Order the retaining springs for your application needs.
Not Yet Reviewed
$2.99
Sierra is a leading supplier of marine engine and drive parts, offering 1,000's of parts including pinion bearings that are designed to meet or exceed the OE part(s) they replace. For 50 years, Sierra Marine has proudly offered high-quality engine and drive parts as a trusted name in the marine industry. All Sierra Marine products are engineered to meet today's high horsepower engine demands, while withstanding the harsh marine environment. Choose the Sierra Marine pinion bearings designed to fit your application needs.
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$46.99
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$58.99
Sierra Marine forward gear sets replace old worn gears with renewed performance. Offering an OE fit and function, they include forward and pinion gears. Service your boat with Sierra forward gear sets.
Not Yet Reviewed
$121.99
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$353.99
Sierra Marine clutch dogs are no-slip, no-friction clutches to replace your outboard's originals. Worn or chipped teeth can cause shifting and gear problems. If you need to replace the dog clutch, Sierra offers several choices for different engines, and all are quality products that meet or exceed OE.
Not Yet Reviewed
$61.99
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$86.50
Sierra Marine offers a wide range of OEM-equivalent parts to maintain and/or repair your watercraft, including swivel bearing gaskets. These swivel bearing gaskets are designed and engineered to meet marine-grade standards for outstanding performance, resulting in a durable, high-strength material appropriate for sealing, preventing leaks and protecting against moisture. For over 50 years, Sierra has supplied the best aftermarket parts in the marine industry—so boaters can enjoy the best of times on the water. Upgrade your boat today with swivel bearing gaskets from Sierra Marine.
Not Yet Reviewed
$4.99
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