Performance & Replacement Transmission & Drivetrain Parts

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.

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Results 1 - 25 of 305

Quicksilver Flo-Torq II Propeller Hub Kits 835257Q6

Marine Propeller Hub Kit, Flo-Torq II, Designed To Be Used with Quicksilver Q4 Propellers Set Up for Surface Piercing Applications, Kit

Part Number: QSV-835257Q6

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Sierra Marine Engine Couplers 18-2414

Engine Coupler, GM 3.7L, Each

Part Number: RRA-18-2414

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 4, 2026 if ordered today

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Estimated Ship Date: Jun 4, 2026 if ordered today

Eddie Marine Billet Aluminum Non-Locking Shifters SH-100B

Shifter, Marine, Non-Locking, Side Mount, Billet Aluminum, Blue Powdercoated, Each

Part Number: EDM-SH-100B

Not Yet Reviewed

Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

Sierra Marine Transom Seal Kits 18-8206-1

Marine Drive Unit Components, Transom Seal Kit, Mercruiser Stern Drive, Kit

Part Number: RRA-18-8206-1

Not Yet Reviewed

Estimated Ship Date: Jun 8, 2026 if ordered today

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Estimated Ship Date: Jun 8, 2026 if ordered today

Sierra Marine Shift Cable Bellows 18-2742

Marine Drive Unit Components, Shift Shaft Boot, Each

Part Number: RRA-18-2742

Not Yet Reviewed

Estimated Ship Date: Jun 8, 2026 if ordered today

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Estimated Ship Date: Jun 8, 2026 if ordered today

Sierra Marine Engine Couplers 18-21753

Engine Coupler, OMC, Volvo Penta, Each

Part Number: RRA-18-21753

Not Yet Reviewed

Estimated Ship Date: Jun 8, 2026 if ordered today

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Estimated Ship Date: Jun 8, 2026 if ordered today

Sierra Marine Drain Plug/Screw Gaskets 18-2430-9

Drain Plug Gasket, Marine, Rubber Coated, Stainless, Set of 5

Part Number: RRA-18-2430-9

Not Yet Reviewed

Estimated Ship Date: Jun 3, 2026 if ordered today

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Estimated Ship Date: Jun 3, 2026 if ordered today

Sierra Marine Engine Couplers 18-21751

Engine Coupler, OMC, Volvo Penta, Each

Part Number: RRA-18-21751

Not Yet Reviewed

Estimated Ship Date: Jun 3, 2026 if ordered today

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Estimated Ship Date: Jun 3, 2026 if ordered today

Sierra Marine Prop Shafts 18-2166

Marine Drive Unit Components, Prop Shaft, Each

Part Number: RRA-18-2166

Not Yet Reviewed

Estimated Ship Date: Jun 8, 2026 if ordered today

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Estimated Ship Date: Jun 8, 2026 if ordered today

Eddie Marine Locking Three Position Shifters SH-200CL

Shifter,Billet aluminum,Three position locking for boats,DOES NOT have a neutral safety switch,Bright clear

Part Number: EDM-SH-200CL

Not Yet Reviewed

Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

Eddie Marine Billet Aluminum Non-Locking Shifters SH-100CA

Shifter, Marine, Non-Locking, Side Mount, Billet Aluminum, Clear Anodized, Each

Part Number: EDM-SH-100CA

Not Yet Reviewed

Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

Sierra Marine Shift Cable Components 18-8308

Shift Shaft Seal, Marine, Mercury Marine, Each

Part Number: RRA-18-8308

Not Yet Reviewed

Estimated Ship Date: Jun 3, 2026 if ordered today

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Estimated Ship Date: Jun 3, 2026 if ordered today

Sierra Marine Gearcase Seal Kits 18-8357

Marine Drive Unit Components, Complete Gearcase Seal Kit, Each

Part Number: RRA-18-8357

Not Yet Reviewed

Estimated Ship Date: Jun 4, 2026 if ordered today

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Estimated Ship Date: Jun 4, 2026 if ordered today

Eddie Marine Billet Aluminum Non-Locking Shifters SH-100W

Shifter, Marine, Non-Locking, Side Mount, Billet Aluminum, White Powdercoated, Each

Part Number: EDM-SH-100W

Not Yet Reviewed

Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

Sierra Marine Reed Block Gaskets 18-0320

Gasket, Reed Block, Marine, Stock, Mercury Marine, Each

Part Number: RRA-18-0320

Not Yet Reviewed

Estimated Ship Date: Jun 4, 2026 if ordered today

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Estimated Ship Date: Jun 4, 2026 if ordered today

Eddie Marine Billet Aluminum Non-Locking Shifters SH-100BA

Shifter, Marine, Non-Locking, Side Mount, Billet Aluminum, Black Anodized, Each

Part Number: EDM-SH-100BA

1.0 out of 5 stars ( 1 )

Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

Sierra Marine Engine Couplers 18-2172

Engine Coupler, Mercruiser, GM Two Piece Seal to One Piece, Kit

Part Number: RRA-18-2172

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 4, 2026 if ordered today

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Estimated Ship Date: Jun 4, 2026 if ordered today

Eddie Marine Locking Three Position Shifters SH-200MB

Shifter,Billet aluminum,Three position locking for boats,DOES NOT have a neutral safety switch,Matte black

Part Number: EDM-SH-200MB

Not Yet Reviewed

Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

Eddie Marine Billet Aluminum Non-Locking Shifters SH-100R

Shifter, Marine, Non-Locking, Side Mount, Billet Aluminum, Red Powdercoated, Each

Part Number: EDM-SH-100R

Not Yet Reviewed

Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

Quicksilver Q4 Propellers 8M0055561

Marine Propeller, Q4, Four Blades, Right Hand (Clockwise) Rotation, Stainless Steel, Polished, 17.00 Blade Pitch, 13.00 in. Diameter, Each

Part Number: QSV-8M0055561

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Sierra Marine Bearing Carriers 18-2370

Marine Drive Unit Components, Bearing Carrier, Chrysler/Force/Marine, Mercury Marine, Each

Part Number: RRA-18-2370

Not Yet Reviewed

Estimated Ship Date: Jun 3, 2026 if ordered today

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Estimated Ship Date: Jun 3, 2026 if ordered today

Sierra Marine Oil Seals 18-25251

Marine Drive Unit Components, Seal, Each

Part Number: RRA-18-25251

Not Yet Reviewed

Estimated Ship Date: Jun 4, 2026 if ordered today

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Estimated Ship Date: Jun 4, 2026 if ordered today

Sierra Marine Anchor Screws 18-3725-9

Marine Drive Unit Components, Ball Gear Nut, Set of 5

Part Number: RRA-18-3725-9

Not Yet Reviewed

Estimated Ship Date: Jun 4, 2026 if ordered today

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Estimated Ship Date: Jun 4, 2026 if ordered today

Sierra Marine Engine Overhaul Gasket Sets 18-0947-9

Marine Drive Unit Components, Pivot Cap Cover Gasket, Gasket, Pair

Part Number: RRA-18-0947-9

Not Yet Reviewed

Estimated Ship Date: Jun 4, 2026 if ordered today

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Estimated Ship Date: Jun 4, 2026 if ordered today

Sierra Marine Shafts 18-73131

Marine Drive Unit Components, Gimbal Ring Shaft, Each

Part Number: RRA-18-73131

Not Yet Reviewed

Estimated Ship Date: Jun 4, 2026 if ordered today

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Estimated Ship Date: Jun 4, 2026 if ordered today

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