Transmission & Drivetrain
Availability
Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic...
Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic and manual transmissions for street and strip applications, torque converters and clutch sets, flexplates and flywheels, plus limited-slip differentials, spools, lockers, ring and pinion sets, driveshafts, U-joints, axles, bearings, C-clip eliminator kits, transfer cases, shift kits, and rebuild kits. We also have a wide selection of trans-brakes, shifters, cables, and accessories—everything you need to put the power to the ground, Summit style.
Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic and manual transmissions for street and strip applications, torque converters and clutch sets, flexplates and flywheels, plus limited-slip differentials, spools, lockers, ring and pinion sets, driveshafts, U-joints, axles, bearings, C-clip eliminator kits, transfer cases, shift kits, and rebuild kits. We also have a wide selection of trans-brakes, shifters, cables, and accessories—everything you need to put the power to the ground, Summit style.
Showing In Stock Items. Show All 41 Items.
Eddie Marine Mercruiser shift quadrants are EMI Thunder accessories that help make your installation easy. These shift quadrant/electronic control module brackets relocate your stock shift quadrant assembly and engine control module (ECU) to an EMI Thunder exhaust system. Eddie Marine Mercruiser shift quadrant brackets have a gloss black Fusioncoat finish and include fasteners.
( 1 )
$67.00
Sierra Marine offers numerous types of roller bearings well-suited for many Mercury Marine, Mercruiser and Mercruiser Stern Drive applications, as well as for use on Honda®, and Chrysler/Force/US Marine. These mechanical components support connecting and rotating shafts to help with movement and mobilization within machinery. They also help to reduce friction and accomplish crucial versatility from radial, axial and thrust loads. Select the Sierra Marine roller bearings in the best application option for your needs.
Not Yet Reviewed
$18.99
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$132.99
Sierra Marine engine couplers are available in a variety of applications to drive your vessel efficiently. Offered individually and in kits, their couplers are manufactured from quality materials to provide hours and hours of time on the water. When it's time to replace a worn coupler, choose from the selection at Sierra Marine.
( 4 )
$210.99
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$317.99
Sierra Marine heavy-duty U-joints include both straight and 90-degree grease fittings. These universal joints are direct-fit units providing the same performance. Service and maintain your watercrafts with Sierra Marine.
Not Yet Reviewed
$44.99
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$105.99
Sierra Marine offers gimbal bearings to fit a variety of MC-1, R, MR, and Alpha, Gen II, Bravo I/II/III and other watercraft models. These specialty ball bearings/races are used in boat engine driveshafts to help maintain alignment. The stock replacements meet or exceed OE quality. The bearings are fit-specific; be sure to match up part numbers to ensure a proper fit.
Not Yet Reviewed
$68.99
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$90.99
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
$224.99
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
$10.99
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$23.99
Sierra Marine offers dozens of shift cable components for a wide range of watercraft applications—including control box repair kits, shafts, sleeves, rod bushings, and seals. Each part is manufactured with factory materials in accordance with OE specifications to ensure proper fitment and long-lasting performance.
Not Yet Reviewed
$5.99
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$32.99
Sierra Marine lower shift cables help to restore smooth shifting. Worn cables can cause shifting difficulties and cause damage to your gears. Sierra carries a variety of shift cable assemblies to replace your worn cables and prevent damage.
Not Yet Reviewed
$109.99
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$199.99
Quicksilver Black Diamond Bravo Two propellers are big and beefy with incredible amounts of blade area for maximum thrust and increased overall efficiency. Designed for MerCruiser engines with Bravo Two drives, several options are available. Select the one needed.
Not Yet Reviewed
$592.60
For good overall performance and value, the Black Diamond is your prop. While Quicksilver Black Diamond propellers are standard equipment on most boats with Mercury Mariner Mercruiser power, they are perfect replacements for all engine brands using the Quicksilver Flo Torq II hub system. Black Diamond propellers are recommended for use on boats with up to 250 hp and with a top speed of less than 50 mph. The high-quality casting and durable high-gloss Phantom Black finish make them easy to maintain and repair. Choose the Black Diamond 3-blade aluminum propeller designed for your marine engine.
Not Yet Reviewed
$78.93
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$206.70
Sierra Marine offers a wide range of driveshaft components, including these steel flange nuts. They're available for fitment on a variety of stern drive and outboard watercraft from makers like Mercruiser, Mercury, Force, and US Marine. When making repairs on your vessel, the correct hardware ensures the performance you expect.
Not Yet Reviewed
$4.99
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 offers a comprehensive product line of marine engine and drive parts, including bearing carriers that are designed to support the drive shaft between the transmission and the differential. These outboard motor parts are available for Johnson, Evinrude, Mercury, Mariner and Mercruiser and other engine types. Each Sierra product meets or exceeds the original equipment part it replaces. Select the bearing carriers for your application.
Not Yet Reviewed
$100.99
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$147.99
Sierra Marine offers a wide range of watercraft drive unit replacement parts, including U-joint assemblies for various GLM, Mallory, OMC, Volvo Penta, and Mercruiser stern drive applications. Each component is manufactured with factory materials in accordance with OE specifications to ensure proper fitment and long-lasting performance.
Not Yet Reviewed
$578.99
Sierra Marine trim cylinder kits are designed for use in Mercruiser Alpha Gen II stern drives. These repair kits are for use with the front and rear trim cylinder. For more than 50 years, Sierra Marine 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 kit for your application needs.
Not Yet Reviewed
$854.99
For impressive overall performance and value, the Quicksilver Black Diamond Bravo III is your prop. While Black Diamond aluminum propellers are standard equipment on most boats with Mercury Mariner MerCruiser power, they're also a perfect replacement for all engine brands through the use of the Quicksilver Flo Torq II hub system. Black Diamond propellers are recommended for use on boats with up to 250 hp and with a top speed of less than 50 mph. The high-quality casting and durable high-gloss Phantom Black finish make them easy to maintain and repair. Additional details: * Quicksilver Black Diamond propeller is designed for all boaters using 25 to 250 hp outboards and Alpha One stern drives * Replace your propeller without sacrificing performance with an OEM-grade Quicksilver Black Diamond * Black Diamond propeller can work with most outboard and single-propeller stern drive manufacturers with the Flo-Torq Hub System. * For use with 4-6 hp Mercury engines * Provides the perfect balance of performance, durability and value * Models available for front or rear of 2-propeller systems * Models available for left-hand (counterclockwise rotation) or right-hand (clockwise) * Propellers available in different diameters, blade pitch and quantity (3 or 4)
Not Yet Reviewed
$860.95
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 Marine offers numerous types of ball bearings well-suited for many Mercury, Johnson/Evinrude, Mercury Cruiser, and Chrysler/Force/US Marine applications. Ball bearings play an integral role in ensuring the optimal operation of marine and nautical equipment. These bearings are pivotal in marine propulsion systems, providing the necessary support and reducing mechanical wear. Select the ball bearings in the best option for your needs.
Not Yet Reviewed
$18.99
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$57.99
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.
Not Yet Reviewed
$158.99
Quicksilver Flo-Torq II propeller hub kits can improve the performance of your Quicksilver propeller. These durable modular hub systems cushion and protect the drivetrain from most impacts. Select the hub kit designed to fit your marine engine.
Not Yet Reviewed
$61.50
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
$359.99
Sierra Marine offers stock replacement needle bearings for a variety of Mercury/Mariner motors. The bearings are quality-machined to meet or exceed original equipment standards. Some models are interchangeable with bearings for other watercraft. Just match up the OEM part number with the model recommended for your marine application.
Not Yet Reviewed
$40.99
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.
Not Yet Reviewed
$379.99
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$663.99
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